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Code Issues Projects Releases Wiki Activity

BLE client support on ESP32 (#1177)

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Co-authored-by: Ben Buxton <bb@cactii.net>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
buxtronix 2021-05-03 09:10:50 +10:00 committed by GitHub
parent 07db9319ad
commit 02aa75f68c
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GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 1342 additions and 8 deletions
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1
CODEOWNERS
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@ -21,6 +21,7 @@ esphome/components/atc_mithermometer/* @ahpohl
esphome/components/b_parasite/* @rbaron
esphome/components/bang_bang/* @OttoWinter
esphome/components/binary_sensor/* @esphome/core
esphome/components/ble_client/* @buxtronix
esphome/components/bme680_bsec/* @trvrnrth
esphome/components/canbus/* @danielschramm @mvturnho
esphome/components/captive_portal/* @OttoWinter

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esphome/components/ble_client/__init__.py Normal file
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import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import esp32_ble_tracker
from esphome.const import (
CONF_ID,
CONF_MAC_ADDRESS,
CONF_NAME,
CONF_ON_CONNECT,
CONF_ON_DISCONNECT,
CONF_TRIGGER_ID,
)
from esphome.core import coroutine
from esphome import automation
CODEOWNERS = ["@buxtronix"]
DEPENDENCIES = ["esp32_ble_tracker"]
ble_client_ns = cg.esphome_ns.namespace("ble_client")
BLEClient = ble_client_ns.class_(
"BLEClient", cg.Component, esp32_ble_tracker.ESPBTClient
)
BLEClientNode = ble_client_ns.class_("BLEClientNode")
BLEClientNodeConstRef = BLEClientNode.operator("ref").operator("const")
# Triggers
BLEClientConnectTrigger = ble_client_ns.class_(
"BLEClientConnectTrigger", automation.Trigger.template(BLEClientNodeConstRef)
)
BLEClientDisconnectTrigger = ble_client_ns.class_(
"BLEClientDisconnectTrigger", automation.Trigger.template(BLEClientNodeConstRef)
)
# Espressif platformio framework is built with MAX_BLE_CONN to 3, so
# enforce this in yaml checks.
MULTI_CONF = 3
CONFIG_SCHEMA = (
cv.Schema(
{
cv.GenerateID(): cv.declare_id(BLEClient),
cv.Required(CONF_MAC_ADDRESS): cv.mac_address,
cv.Optional(CONF_NAME): cv.string,
cv.Optional(CONF_ON_CONNECT): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
BLEClientConnectTrigger
),
}
),
cv.Optional(CONF_ON_DISCONNECT): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
BLEClientDisconnectTrigger
),
}
),
}
)
.extend(cv.COMPONENT_SCHEMA)
.extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA)
)
CONF_BLE_CLIENT_ID = "ble_client_id"
BLE_CLIENT_SCHEMA = cv.Schema(
{
cv.Required(CONF_BLE_CLIENT_ID): cv.use_id(BLEClient),
}
)
@coroutine
def register_ble_node(var, config):
parent = yield cg.get_variable(config[CONF_BLE_CLIENT_ID])
cg.add(parent.register_ble_node(var))
def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
yield cg.register_component(var, config)
yield esp32_ble_tracker.register_client(var, config)
cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))
for conf in config.get(CONF_ON_CONNECT, []):
trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
yield automation.build_automation(trigger, [], conf)
for conf in config.get(CONF_ON_DISCONNECT, []):
trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
yield automation.build_automation(trigger, [], conf)

37
esphome/components/ble_client/automation.h Normal file
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#pragma once
#include "esphome/core/automation.h"
#include "esphome/components/ble_client/ble_client.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace ble_client {
class BLEClientConnectTrigger : public Trigger<>, public BLEClientNode {
public:
explicit BLEClientConnectTrigger(BLEClient *parent) { parent->register_ble_node(this); }
void loop() override {}
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param) {
if (event == ESP_GATTC_OPEN_EVT && param->open.status == ESP_GATT_OK)
this->trigger();
if (event == ESP_GATTC_SEARCH_CMPL_EVT)
this->node_state = espbt::ClientState::Established;
}
};
class BLEClientDisconnectTrigger : public Trigger<>, public BLEClientNode {
public:
explicit BLEClientDisconnectTrigger(BLEClient *parent) { parent->register_ble_node(this); }
void loop() override {}
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param) {
if (event == ESP_GATTC_DISCONNECT_EVT && memcmp(param->disconnect.remote_bda, this->parent_->remote_bda, 6) == 0)
this->trigger();
if (event == ESP_GATTC_SEARCH_CMPL_EVT)
this->node_state = espbt::ClientState::Established;
}
};
} // namespace ble_client
} // namespace esphome
#endif

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esphome/components/ble_client/ble_client.cpp Normal file
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#include "esphome/core/log.h"
#include "esphome/core/application.h"
#include "esphome/core/helpers.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#include "ble_client.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace ble_client {
static const char *TAG = "ble_client";
void BLEClient::setup() {
auto ret = esp_ble_gattc_app_register(this->app_id);
if (ret) {
ESP_LOGE(TAG, "gattc app register failed. app_id=%d code=%d", this->app_id, ret);
this->mark_failed();
}
this->set_states(espbt::ClientState::Idle);
this->enabled = true;
}
void BLEClient::loop() {
if (this->state() == espbt::ClientState::Discovered) {
this->connect();
}
for (auto *node : this->nodes_)
node->loop();
}
void BLEClient::dump_config() {
ESP_LOGCONFIG(TAG, "BLE Client:");
ESP_LOGCONFIG(TAG, " Address: %s", this->address_str().c_str());
}
bool BLEClient::parse_device(const espbt::ESPBTDevice &device) {
if (!this->enabled)
return false;
if (device.address_uint64() != this->address)
return false;
if (this->state() != espbt::ClientState::Idle)
return false;
ESP_LOGD(TAG, "Found device at MAC address [%s]", device.address_str().c_str());
this->set_states(espbt::ClientState::Discovered);
auto addr = device.address_uint64();
this->remote_bda[0] = (addr >> 40) & 0xFF;
this->remote_bda[1] = (addr >> 32) & 0xFF;
this->remote_bda[2] = (addr >> 24) & 0xFF;
this->remote_bda[3] = (addr >> 16) & 0xFF;
this->remote_bda[4] = (addr >> 8) & 0xFF;
this->remote_bda[5] = (addr >> 0) & 0xFF;
return true;
}
std::string BLEClient::address_str() const {
char buf[20];
sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", (uint8_t)(this->address >> 40) & 0xff,
(uint8_t)(this->address >> 32) & 0xff, (uint8_t)(this->address >> 24) & 0xff,
(uint8_t)(this->address >> 16) & 0xff, (uint8_t)(this->address >> 8) & 0xff,
(uint8_t)(this->address >> 0) & 0xff);
std::string ret;
ret = buf;
return ret;
}
void BLEClient::set_enabled(bool enabled) {
if (enabled == this->enabled)
return;
if (!enabled && this->state() != espbt::ClientState::Idle) {
ESP_LOGI(TAG, "[%s] Disabling BLE client.", this->address_str().c_str());
auto ret = esp_ble_gattc_close(this->gattc_if, this->conn_id);
if (ret) {
ESP_LOGW(TAG, "esp_ble_gattc_close error, address=%s status=%d", this->address_str().c_str(), ret);
}
}
this->enabled = enabled;
}
void BLEClient::connect() {
ESP_LOGI(TAG, "Attempting BLE connection to %s", this->address_str().c_str());
auto ret = esp_ble_gattc_open(this->gattc_if, this->remote_bda, BLE_ADDR_TYPE_PUBLIC, true);
if (ret) {
ESP_LOGW(TAG, "esp_ble_gattc_open error, address=%s status=%d", this->address_str().c_str(), ret);
this->set_states(espbt::ClientState::Idle);
} else {
this->set_states(espbt::ClientState::Connecting);
}
}
void BLEClient::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t esp_gattc_if,
esp_ble_gattc_cb_param_t *param) {
if (event == ESP_GATTC_REG_EVT && this->app_id != param->reg.app_id)
return;
if (event != ESP_GATTC_REG_EVT && esp_gattc_if != ESP_GATT_IF_NONE && gattc_if != this->gattc_if)
return;
bool all_established = this->all_nodes_established();
switch (event) {
case ESP_GATTC_REG_EVT: {
if (param->reg.status == ESP_GATT_OK) {
ESP_LOGI(TAG, "gattc registered app id %d", this->app_id);
this->gattc_if = esp_gattc_if;
} else {
ESP_LOGE(TAG, "gattc app registration failed id=%d code=%d", param->reg.app_id, param->reg.status);
}
break;
}
case ESP_GATTC_OPEN_EVT: {
ESP_LOGI(TAG, "[%s] ESP_GATTC_OPEN_EVT", this->address_str().c_str());
if (param->open.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "connect to %s failed, status=%d", this->address_str().c_str(), param->open.status);
this->set_states(espbt::ClientState::Idle);
break;
}
this->conn_id = param->open.conn_id;
auto ret = esp_ble_gattc_send_mtu_req(this->gattc_if, param->open.conn_id);
if (ret) {
ESP_LOGW(TAG, "esp_ble_gattc_send_mtu_req failed, status=%d", ret);
}
break;
}
case ESP_GATTC_CFG_MTU_EVT: {
if (param->cfg_mtu.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "cfg_mtu to %s failed, status %d", this->address_str().c_str(), param->cfg_mtu.status);
this->set_states(espbt::ClientState::Idle);
break;
}
ESP_LOGV(TAG, "cfg_mtu status %d, mtu %d", param->cfg_mtu.status, param->cfg_mtu.mtu);
esp_ble_gattc_search_service(esp_gattc_if, param->cfg_mtu.conn_id, NULL);
break;
}
case ESP_GATTC_DISCONNECT_EVT: {
if (memcmp(param->disconnect.remote_bda, this->remote_bda, 6) != 0) {
return;
}
ESP_LOGI(TAG, "[%s] ESP_GATTC_DISCONNECT_EVT", this->address_str().c_str());
for (auto &svc : this->services_)
delete svc;
this->services_.clear();
this->set_states(espbt::ClientState::Idle);
break;
}
case ESP_GATTC_SEARCH_RES_EVT: {
BLEService *ble_service = new BLEService();
ble_service->uuid = espbt::ESPBTUUID::from_uuid(param->search_res.srvc_id.uuid);
ble_service->start_handle = param->search_res.start_handle;
ble_service->end_handle = param->search_res.end_handle;
ble_service->client = this;
this->services_.push_back(ble_service);
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
ESP_LOGV(TAG, "[%s] ESP_GATTC_SEARCH_CMPL_EVT", this->address_str().c_str());
for (auto &svc : this->services_) {
ESP_LOGI(TAG, "Service UUID: %s", svc->uuid.to_string().c_str());
ESP_LOGI(TAG, " start_handle: 0x%x end_handle: 0x%x", svc->start_handle, svc->end_handle);
svc->parse_characteristics();
}
this->set_states(espbt::ClientState::Connected);
this->set_state(espbt::ClientState::Established);
break;
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
auto descr = this->get_config_descriptor(param->reg_for_notify.handle);
if (descr == nullptr) {
ESP_LOGW(TAG, "No descriptor found for notify of handle 0x%x", param->reg_for_notify.handle);
break;
}
if (descr->uuid.get_uuid().len != ESP_UUID_LEN_16 ||
descr->uuid.get_uuid().uuid.uuid16 != ESP_GATT_UUID_CHAR_CLIENT_CONFIG) {
ESP_LOGW(TAG, "Handle 0x%x (uuid %s) is not a client config char uuid", param->reg_for_notify.handle,
descr->uuid.to_string().c_str());
break;
}
uint8_t notify_en = 1;
auto status = esp_ble_gattc_write_char_descr(this->gattc_if, this->conn_id, descr->handle, sizeof(notify_en),
&notify_en, ESP_GATT_WRITE_TYPE_RSP, ESP_GATT_AUTH_REQ_NONE);
if (status) {
ESP_LOGW(TAG, "esp_ble_gattc_write_char_descr error, status=%d", status);
}
break;
}
default:
break;
}
for (auto *node : this->nodes_)
node->gattc_event_handler(event, esp_gattc_if, param);
// Delete characteristics after clients have used them to save RAM.
if (!all_established && this->all_nodes_established()) {
for (auto &svc : this->services_)
delete svc;
this->services_.clear();
}
}
// Parse GATT values into a float for a sensor.
// Ref: https://www.bluetooth.com/specifications/assigned-numbers/format-types/
float BLEClient::parse_char_value(uint8_t *value, uint16_t length) {
// A length of one means a single octet value.
if (length == 0)
return 0;
if (length == 1)
return (float) ((uint8_t) value[0]);
switch (value[0]) {
case 0x1: // boolean.
case 0x2: // 2bit.
case 0x3: // nibble.
case 0x4: // uint8.
return (float) ((uint8_t) value[1]);
case 0x5: // uint12.
case 0x6: // uint16.
return (float) ((uint16_t)(value[1] << 8) + (uint16_t) value[2]);
case 0x7: // uint24.
return (float) ((uint32_t)(value[1] << 16) + (uint32_t)(value[2] << 8) + (uint32_t)(value[3]));
case 0x8: // uint32.
return (float) ((uint32_t)(value[1] << 24) + (uint32_t)(value[2] << 16) + (uint32_t)(value[3] << 8) +
(uint32_t)(value[4]));
case 0xC: // int8.
return (float) ((int8_t) value[1]);
case 0xD: // int12.
case 0xE: // int16.
return (float) ((int16_t)(value[1] << 8) + (int16_t) value[2]);
case 0xF: // int24.
return (float) ((int32_t)(value[1] << 16) + (int32_t)(value[2] << 8) + (int32_t)(value[3]));
case 0x10: // int32.
return (float) ((int32_t)(value[1] << 24) + (int32_t)(value[2] << 16) + (int32_t)(value[3] << 8) +
(int32_t)(value[4]));
}
ESP_LOGW(TAG, "Cannot parse characteristic value of type 0x%x", value[0]);
return NAN;
}
BLEService *BLEClient::get_service(espbt::ESPBTUUID uuid) {
for (auto svc : this->services_)
if (svc->uuid == uuid)
return svc;
return nullptr;
}
BLEService *BLEClient::get_service(uint16_t uuid) { return this->get_service(espbt::ESPBTUUID::from_uint16(uuid)); }
BLECharacteristic *BLEClient::get_characteristic(espbt::ESPBTUUID service, espbt::ESPBTUUID chr) {
auto svc = this->get_service(service);
if (svc == nullptr)
return nullptr;
return svc->get_characteristic(chr);
}
BLECharacteristic *BLEClient::get_characteristic(uint16_t service, uint16_t chr) {
return this->get_characteristic(espbt::ESPBTUUID::from_uint16(service), espbt::ESPBTUUID::from_uint16(chr));
}
BLEDescriptor *BLEClient::get_config_descriptor(uint16_t handle) {
for (auto &svc : this->services_)
for (auto &chr : svc->characteristics)
if (chr->handle == handle)
for (auto &desc : chr->descriptors)
if (desc->uuid == espbt::ESPBTUUID::from_uint16(0x2902))
return desc;
return nullptr;
}
BLECharacteristic *BLEService::get_characteristic(espbt::ESPBTUUID uuid) {
for (auto &chr : this->characteristics)
if (chr->uuid == uuid)
return chr;
return nullptr;
}
BLECharacteristic *BLEService::get_characteristic(uint16_t uuid) {
return this->get_characteristic(espbt::ESPBTUUID::from_uint16(uuid));
}
BLEDescriptor *BLEClient::get_descriptor(espbt::ESPBTUUID service, espbt::ESPBTUUID chr, espbt::ESPBTUUID descr) {
auto svc = this->get_service(service);
if (svc == nullptr)
return nullptr;
auto ch = svc->get_characteristic(chr);
if (ch == nullptr)
return nullptr;
return ch->get_descriptor(descr);
}
BLEDescriptor *BLEClient::get_descriptor(uint16_t service, uint16_t chr, uint16_t descr) {
return this->get_descriptor(espbt::ESPBTUUID::from_uint16(service), espbt::ESPBTUUID::from_uint16(chr),
espbt::ESPBTUUID::from_uint16(descr));
}
BLEService::~BLEService() {
for (auto &chr : this->characteristics)
delete chr;
}
void BLEService::parse_characteristics() {
uint16_t offset = 0;
esp_gattc_char_elem_t result;
while (true) {
uint16_t count = 1;
esp_gatt_status_t status = esp_ble_gattc_get_all_char(
this->client->gattc_if, this->client->conn_id, this->start_handle, this->end_handle, &result, &count, offset);
if (status == ESP_GATT_INVALID_OFFSET || status == ESP_GATT_NOT_FOUND) {
break;
}
if (status != ESP_GATT_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_get_all_char error, status=%d", status);
break;
}
if (count == 0) {
break;
}
BLECharacteristic *characteristic = new BLECharacteristic();
characteristic->uuid = espbt::ESPBTUUID::from_uuid(result.uuid);
characteristic->properties = result.properties;
characteristic->handle = result.char_handle;
characteristic->service = this;
this->characteristics.push_back(characteristic);
ESP_LOGI(TAG, " characteristic %s, handle 0x%x, properties 0x%x", characteristic->uuid.to_string().c_str(),
characteristic->handle, characteristic->properties);
characteristic->parse_descriptors();
offset++;
}
}
BLECharacteristic::~BLECharacteristic() {
for (auto &desc : this->descriptors)
delete desc;
}
void BLECharacteristic::parse_descriptors() {
uint16_t offset = 0;
esp_gattc_descr_elem_t result;
while (true) {
uint16_t count = 1;
esp_gatt_status_t status = esp_ble_gattc_get_all_descr(
this->service->client->gattc_if, this->service->client->conn_id, this->handle, &result, &count, offset);
if (status == ESP_GATT_INVALID_OFFSET || status == ESP_GATT_NOT_FOUND) {
break;
}
if (status != ESP_GATT_OK) {
ESP_LOGW(TAG, "esp_ble_gattc_get_all_descr error, status=%d", status);
break;
}
if (count == 0) {
break;
}
BLEDescriptor *desc = new BLEDescriptor();
desc->uuid = espbt::ESPBTUUID::from_uuid(result.uuid);
desc->handle = result.handle;
desc->characteristic = this;
this->descriptors.push_back(desc);
ESP_LOGI(TAG, " descriptor %s, handle 0x%x", desc->uuid.to_string().c_str(), desc->handle);
offset++;
}
}
BLEDescriptor *BLECharacteristic::get_descriptor(espbt::ESPBTUUID uuid) {
for (auto &desc : this->descriptors)
if (desc->uuid == uuid)
return desc;
return nullptr;
}
BLEDescriptor *BLECharacteristic::get_descriptor(uint16_t uuid) {
return this->get_descriptor(espbt::ESPBTUUID::from_uint16(uuid));
}
} // namespace ble_client
} // namespace esphome
#endif

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esphome/components/ble_client/ble_client.h Normal file
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#pragma once
#include "esphome/core/component.h"
#include "esphome/core/helpers.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#ifdef ARDUINO_ARCH_ESP32
#include <string>
#include <array>
#include <esp_gap_ble_api.h>
#include <esp_gattc_api.h>
#include <esp_bt_defs.h>
namespace espbt = esphome::esp32_ble_tracker;
namespace esphome {
namespace ble_client {
class BLEClient;
class BLEService;
class BLECharacteristic;
class BLEClientNode {
public:
virtual void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) = 0;
virtual void loop() = 0;
void set_address(uint64_t address) { address_ = address; }
espbt::ESPBTClient *client;
// This should be transitioned to Established once the node no longer needs
// the services/descriptors/characteristics of the parent client. This will
// allow some memory to be freed.
espbt::ClientState node_state;
BLEClient *parent() { return this->parent_; }
void set_ble_client_parent(BLEClient *parent) { this->parent_ = parent; }
protected:
BLEClient *parent_;
uint64_t address_;
};
class BLEDescriptor {
public:
espbt::ESPBTUUID uuid;
uint16_t handle;
BLECharacteristic *characteristic;
};
class BLECharacteristic {
public:
~BLECharacteristic();
espbt::ESPBTUUID uuid;
uint16_t handle;
esp_gatt_char_prop_t properties;
std::vector<BLEDescriptor *> descriptors;
void parse_descriptors();
BLEDescriptor *get_descriptor(espbt::ESPBTUUID uuid);
BLEDescriptor *get_descriptor(uint16_t uuid);
BLEService *service;
};
class BLEService {
public:
~BLEService();
espbt::ESPBTUUID uuid;
uint16_t start_handle;
uint16_t end_handle;
std::vector<BLECharacteristic *> characteristics;
BLEClient *client;
void parse_characteristics();
BLECharacteristic *get_characteristic(espbt::ESPBTUUID uuid);
BLECharacteristic *get_characteristic(uint16_t uuid);
};
class BLEClient : public espbt::ESPBTClient, public Component {
public:
void setup() override;
void dump_config() override;
void loop() override;
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
bool parse_device(const espbt::ESPBTDevice &device) override;
void on_scan_end() override {}
void connect();
void set_address(uint64_t address) { this->address = address; }
void set_enabled(bool enabled);
void register_ble_node(BLEClientNode *node) {
node->client = this;
node->set_ble_client_parent(this);
this->nodes_.push_back(node);
}
BLEService *get_service(espbt::ESPBTUUID uuid);
BLEService *get_service(uint16_t uuid);
BLECharacteristic *get_characteristic(espbt::ESPBTUUID service, espbt::ESPBTUUID chr);
BLECharacteristic *get_characteristic(uint16_t service, uint16_t chr);
BLEDescriptor *get_descriptor(espbt::ESPBTUUID service, espbt::ESPBTUUID chr, espbt::ESPBTUUID descr);
BLEDescriptor *get_descriptor(uint16_t service, uint16_t chr, uint16_t descr);
// Get the configuration descriptor for the given characteristic handle.
BLEDescriptor *get_config_descriptor(uint16_t handle);
float parse_char_value(uint8_t *value, uint16_t length);
int gattc_if;
esp_bd_addr_t remote_bda;
uint16_t conn_id;
uint64_t address;
bool enabled;
std::string address_str() const;
protected:
void set_states(espbt::ClientState st) {
this->set_state(st);
for (auto &node : nodes_)
node->node_state = st;
}
bool all_nodes_established() {
if (this->state() != espbt::ClientState::Established)
return false;
for (auto &node : nodes_)
if (node->node_state != espbt::ClientState::Established)
return false;
return true;
}
std::vector<BLEClientNode *> nodes_;
std::vector<BLEService *> services_;
};
} // namespace ble_client
} // namespace esphome
#endif

115
esphome/components/ble_client/sensor/__init__.py Normal file
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import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import sensor, ble_client, esp32_ble_tracker
from esphome.const import (
DEVICE_CLASS_EMPTY,
CONF_ID,
UNIT_EMPTY,
ICON_EMPTY,
CONF_TRIGGER_ID,
CONF_SERVICE_UUID,
)
from esphome import automation
from .. import ble_client_ns
DEPENDENCIES = ["ble_client"]
CONF_CHARACTERISTIC_UUID = "characteristic_uuid"
CONF_DESCRIPTOR_UUID = "descriptor_uuid"
CONF_NOTIFY = "notify"
CONF_ON_NOTIFY = "on_notify"
BLESensor = ble_client_ns.class_(
"BLESensor", sensor.Sensor, cg.PollingComponent, ble_client.BLEClientNode
)
BLESensorNotifyTrigger = ble_client_ns.class_(
"BLESensorNotifyTrigger", automation.Trigger.template(cg.float_)
)
CONFIG_SCHEMA = cv.All(
sensor.sensor_schema(UNIT_EMPTY, ICON_EMPTY, 0, DEVICE_CLASS_EMPTY)
.extend(
{
cv.GenerateID(): cv.declare_id(BLESensor),
cv.Required(CONF_SERVICE_UUID): esp32_ble_tracker.bt_uuid,
cv.Required(CONF_CHARACTERISTIC_UUID): esp32_ble_tracker.bt_uuid,
cv.Optional(CONF_DESCRIPTOR_UUID): esp32_ble_tracker.bt_uuid,
cv.Optional(CONF_NOTIFY, default=False): cv.boolean,
cv.Optional(CONF_ON_NOTIFY): automation.validate_automation(
{
cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(
BLESensorNotifyTrigger
),
}
),
}
)
.extend(cv.polling_component_schema("60s"))
.extend(ble_client.BLE_CLIENT_SCHEMA)
)
def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
if len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
cg.add(
var.set_service_uuid16(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID]))
)
elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid32_format):
cg.add(
var.set_service_uuid32(esp32_ble_tracker.as_hex(config[CONF_SERVICE_UUID]))
)
elif len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid128_format):
uuid128 = esp32_ble_tracker.as_hex_array(config[CONF_SERVICE_UUID])
cg.add(var.set_service_uuid128(uuid128))
if len(config[CONF_CHARACTERISTIC_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
cg.add(
var.set_char_uuid16(
esp32_ble_tracker.as_hex(config[CONF_CHARACTERISTIC_UUID])
)
)
elif len(config[CONF_CHARACTERISTIC_UUID]) == len(
esp32_ble_tracker.bt_uuid32_format
):
cg.add(
var.set_char_uuid32(
esp32_ble_tracker.as_hex(config[CONF_CHARACTERISTIC_UUID])
)
)
elif len(config[CONF_CHARACTERISTIC_UUID]) == len(
esp32_ble_tracker.bt_uuid128_format
):
uuid128 = esp32_ble_tracker.as_hex_array(config[CONF_CHARACTERISTIC_UUID])
cg.add(var.set_char_uuid128(uuid128))
if CONF_DESCRIPTOR_UUID in config:
if len(config[CONF_DESCRIPTOR_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
cg.add(
var.set_descr_uuid16(
esp32_ble_tracker.as_hex(config[CONF_DESCRIPTOR_UUID])
)
)
elif len(config[CONF_DESCRIPTOR_UUID]) == len(
esp32_ble_tracker.bt_uuid32_format
):
cg.add(
var.set_descr_uuid32(
esp32_ble_tracker.as_hex(config[CONF_DESCRIPTOR_UUID])
)
)
elif len(config[CONF_DESCRIPTOR_UUID]) == len(
esp32_ble_tracker.bt_uuid128_format
):
uuid128 = esp32_ble_tracker.as_hex_array(config[CONF_DESCRIPTOR_UUID])
cg.add(var.set_descr_uuid128(uuid128))
yield cg.register_component(var, config)
yield ble_client.register_ble_node(var, config)
cg.add(var.set_enable_notify(config[CONF_NOTIFY]))
yield sensor.register_sensor(var, config)
for conf in config.get(CONF_ON_NOTIFY, []):
trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
yield ble_client.register_ble_node(trigger, config)
yield automation.build_automation(trigger, [(float, "x")], conf)

37
esphome/components/ble_client/sensor/automation.h Normal file
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@ -0,0 +1,37 @@
#pragma once
#include "esphome/core/automation.h"
#include "esphome/components/ble_client/sensor/ble_sensor.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace ble_client {
class BLESensorNotifyTrigger : public Trigger<float>, public BLESensor {
public:
explicit BLESensorNotifyTrigger(BLESensor *sensor) { sensor_ = sensor; }
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param) {
switch (event) {
case ESP_GATTC_SEARCH_CMPL_EVT: {
this->sensor_->node_state = espbt::ClientState::Established;
break;
}
case ESP_GATTC_NOTIFY_EVT: {
if (param->notify.conn_id != this->sensor_->parent()->conn_id || param->notify.handle != this->sensor_->handle)
break;
this->trigger(this->sensor_->parent()->parse_char_value(param->notify.value, param->notify.value_len));
}
default:
break;
}
}
protected:
BLESensor *sensor_;
};
} // namespace ble_client
} // namespace esphome
#endif

129
esphome/components/ble_client/sensor/ble_sensor.cpp Normal file
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@ -0,0 +1,129 @@
#include "ble_sensor.h"
#include "esphome/core/log.h"
#include "esphome/core/application.h"
#include "esphome/core/helpers.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace ble_client {
static const char *TAG = "ble_sensor";
uint32_t BLESensor::hash_base() { return 343459825UL; }
void BLESensor::loop() {}
void BLESensor::dump_config() {
LOG_SENSOR("", "BLE Sensor", this);
ESP_LOGCONFIG(TAG, " MAC address : %s", this->parent()->address_str().c_str());
ESP_LOGCONFIG(TAG, " Service UUID : %s", this->service_uuid_.to_string().c_str());
ESP_LOGCONFIG(TAG, " Characteristic UUID: %s", this->char_uuid_.to_string().c_str());
ESP_LOGCONFIG(TAG, " Descriptor UUID : %s", this->descr_uuid_.to_string().c_str());
ESP_LOGCONFIG(TAG, " Notifications : %s", YESNO(this->notify_));
LOG_UPDATE_INTERVAL(this);
}
void BLESensor::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
switch (event) {
case ESP_GATTC_OPEN_EVT: {
if (param->open.status == ESP_GATT_OK) {
ESP_LOGW(TAG, "[%s] Connected successfully!", this->get_name().c_str());
break;
}
break;
}
case ESP_GATTC_DISCONNECT_EVT: {
ESP_LOGW(TAG, "[%s] Disconnected!", this->get_name().c_str());
this->status_set_warning();
this->publish_state(NAN);
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT: {
this->handle = 0;
auto chr = this->parent()->get_characteristic(this->service_uuid_, this->char_uuid_);
if (chr == nullptr) {
this->status_set_warning();
this->publish_state(NAN);
ESP_LOGW(TAG, "No sensor characteristic found at service %s char %s", this->service_uuid_.to_string().c_str(),
this->char_uuid_.to_string().c_str());
break;
}
this->handle = chr->handle;
if (this->descr_uuid_.get_uuid().len > 0) {
auto descr = chr->get_descriptor(this->descr_uuid_);
if (descr == nullptr) {
this->status_set_warning();
this->publish_state(NAN);
ESP_LOGW(TAG, "No sensor descriptor found at service %s char %s descr %s",
this->service_uuid_.to_string().c_str(), this->char_uuid_.to_string().c_str(),
this->descr_uuid_.to_string().c_str());
break;
}
this->handle = descr->handle;
}
if (this->notify_) {
auto status =
esp_ble_gattc_register_for_notify(this->parent()->gattc_if, this->parent()->remote_bda, chr->handle);
if (status) {
ESP_LOGW(TAG, "esp_ble_gattc_register_for_notify failed, status=%d", status);
}
} else {
this->node_state = espbt::ClientState::Established;
}
break;
}
case ESP_GATTC_READ_CHAR_EVT: {
if (param->read.conn_id != this->parent()->conn_id)
break;
if (param->read.status != ESP_GATT_OK) {
ESP_LOGW(TAG, "Error reading char at handle %d, status=%d", param->read.handle, param->read.status);
break;
}
if (param->read.handle == this->handle) {
this->status_clear_warning();
this->publish_state((float) param->read.value[0]);
}
break;
}
case ESP_GATTC_NOTIFY_EVT: {
if (param->notify.conn_id != this->parent()->conn_id || param->notify.handle != this->handle)
break;
ESP_LOGI(TAG, "[%s] ESP_GATTC_NOTIFY_EVT: handle=0x%x, value=0x%x", this->get_name().c_str(),
param->notify.handle, param->notify.value[0]);
this->publish_state((float) param->notify.value[0]);
break;
}
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
this->node_state = espbt::ClientState::Established;
break;
}
default:
break;
}
}
void BLESensor::update() {
if (this->node_state != espbt::ClientState::Established) {
ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->get_name().c_str());
return;
}
if (this->handle == 0) {
ESP_LOGW(TAG, "[%s] Cannot poll, no service or characteristic found", this->get_name().c_str());
return;
}
auto status =
esp_ble_gattc_read_char(this->parent()->gattc_if, this->parent()->conn_id, this->handle, ESP_GATT_AUTH_REQ_NONE);
if (status) {
this->status_set_warning();
this->publish_state(NAN);
ESP_LOGW(TAG, "[%s] Error sending read request for sensor, status=%d", this->get_name().c_str(), status);
}
}
} // namespace ble_client
} // namespace esphome
#endif

46
esphome/components/ble_client/sensor/ble_sensor.h Normal file
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@ -0,0 +1,46 @@
#pragma once
#include "esphome/core/component.h"
#include "esphome/components/ble_client/ble_client.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#include "esphome/components/sensor/sensor.h"
#ifdef ARDUINO_ARCH_ESP32
#include <esp_gattc_api.h>
namespace esphome {
namespace ble_client {
namespace espbt = esphome::esp32_ble_tracker;
class BLESensor : public sensor::Sensor, public PollingComponent, public BLEClientNode {
public:
void loop() override;
void update() override;
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
void dump_config() override;
float get_setup_priority() const override { return setup_priority::DATA; }
void set_service_uuid16(uint16_t uuid) { this->service_uuid_ = espbt::ESPBTUUID::from_uint16(uuid); }
void set_service_uuid32(uint32_t uuid) { this->service_uuid_ = espbt::ESPBTUUID::from_uint32(uuid); }
void set_service_uuid128(uint8_t *uuid) { this->service_uuid_ = espbt::ESPBTUUID::from_raw(uuid); }
void set_char_uuid16(uint16_t uuid) { this->char_uuid_ = espbt::ESPBTUUID::from_uint16(uuid); }
void set_char_uuid32(uint32_t uuid) { this->char_uuid_ = espbt::ESPBTUUID::from_uint32(uuid); }
void set_char_uuid128(uint8_t *uuid) { this->char_uuid_ = espbt::ESPBTUUID::from_raw(uuid); }
void set_descr_uuid16(uint16_t uuid) { this->descr_uuid_ = espbt::ESPBTUUID::from_uint16(uuid); }
void set_descr_uuid32(uint32_t uuid) { this->descr_uuid_ = espbt::ESPBTUUID::from_uint32(uuid); }
void set_descr_uuid128(uint8_t *uuid) { this->descr_uuid_ = espbt::ESPBTUUID::from_raw(uuid); }
void set_enable_notify(bool notify) { this->notify_ = notify; }
uint16_t handle;
protected:
uint32_t hash_base() override;
bool notify_;
espbt::ESPBTUUID service_uuid_;
espbt::ESPBTUUID char_uuid_;
espbt::ESPBTUUID descr_uuid_;
};
} // namespace ble_client
} // namespace esphome
#endif

30
esphome/components/ble_client/switch/__init__.py Normal file
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@ -0,0 +1,30 @@
import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import switch, ble_client
from esphome.const import CONF_ICON, CONF_ID, CONF_INVERTED, ICON_BLUETOOTH
from .. import ble_client_ns
BLEClientSwitch = ble_client_ns.class_(
"BLEClientSwitch", switch.Switch, cg.Component, ble_client.BLEClientNode
)
CONFIG_SCHEMA = (
switch.SWITCH_SCHEMA.extend(
{
cv.GenerateID(): cv.declare_id(BLEClientSwitch),
cv.Optional(CONF_INVERTED): cv.invalid(
"BLE client switches do not support inverted mode!"
),
cv.Optional(CONF_ICON, default=ICON_BLUETOOTH): switch.icon,
}
)
.extend(ble_client.BLE_CLIENT_SCHEMA)
.extend(cv.COMPONENT_SCHEMA)
)
def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
yield cg.register_component(var, config)
yield switch.register_switch(var, config)
yield ble_client.register_ble_node(var, config)

39
esphome/components/ble_client/switch/ble_switch.cpp Normal file
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@ -0,0 +1,39 @@
#include "ble_switch.h"
#include "esphome/core/log.h"
#include "esphome/core/application.h"
#ifdef ARDUINO_ARCH_ESP32
namespace esphome {
namespace ble_client {
static const char *TAG = "ble_switch";
void BLEClientSwitch::write_state(bool state) {
this->parent_->set_enabled(state);
this->publish_state(state);
}
void BLEClientSwitch::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
switch (event) {
case ESP_GATTC_REG_EVT:
this->publish_state(this->parent_->enabled);
break;
case ESP_GATTC_OPEN_EVT:
this->node_state = espbt::ClientState::Established;
break;
case ESP_GATTC_DISCONNECT_EVT:
this->node_state = espbt::ClientState::Idle;
this->publish_state(this->parent_->enabled);
break;
default:
break;
}
}
void BLEClientSwitch::dump_config() { LOG_SWITCH("", "BLE Client Switch", this); }
} // namespace ble_client
} // namespace esphome
#endif

30
esphome/components/ble_client/switch/ble_switch.h Normal file
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@ -0,0 +1,30 @@
#pragma once
#include "esphome/core/component.h"
#include "esphome/components/ble_client/ble_client.h"
#include "esphome/components/esp32_ble_tracker/esp32_ble_tracker.h"
#include "esphome/components/switch/switch.h"
#ifdef ARDUINO_ARCH_ESP32
#include <esp_gattc_api.h>
namespace esphome {
namespace ble_client {
namespace espbt = esphome::esp32_ble_tracker;
class BLEClientSwitch : public switch_::Switch, public Component, public BLEClientNode {
public:
void dump_config() override;
void loop() override {}
void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) override;
float get_setup_priority() const override { return setup_priority::DATA; }
protected:
void write_state(bool state) override;
};
} // namespace ble_client
} // namespace esphome
#endif

8
esphome/components/esp32_ble_tracker/__init__.py
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@ -26,6 +26,7 @@ CONF_WINDOW = "window"
CONF_ACTIVE = "active"
esp32_ble_tracker_ns = cg.esphome_ns.namespace("esp32_ble_tracker")
ESP32BLETracker = esp32_ble_tracker_ns.class_("ESP32BLETracker", cg.Component)
ESPBTClient = esp32_ble_tracker_ns.class_("ESPBTClient")
ESPBTDeviceListener = esp32_ble_tracker_ns.class_("ESPBTDeviceListener")
ESPBTDevice = esp32_ble_tracker_ns.class_("ESPBTDevice")
ESPBTDeviceConstRef = ESPBTDevice.operator("ref").operator("const")
@ -220,3 +221,10 @@ def register_ble_device(var, config):
paren = yield cg.get_variable(config[CONF_ESP32_BLE_ID])
cg.add(paren.register_listener(var))
yield var
@coroutine
def register_client(var, config):
paren = yield cg.get_variable(config[CONF_ESP32_BLE_ID])
cg.add(paren.register_client(var))
yield var

86
esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp
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@ -48,7 +48,23 @@ void ESP32BLETracker::setup() {
}
void ESP32BLETracker::loop() {
if (xSemaphoreTake(this->scan_end_lock_, 0L)) {
BLEEvent *ble_event = this->ble_events_.pop();
while (ble_event != nullptr) {
if (ble_event->type_)
this->real_gattc_event_handler(ble_event->event_.gattc.gattc_event, ble_event->event_.gattc.gattc_if,
&ble_event->event_.gattc.gattc_param);
else
this->real_gap_event_handler(ble_event->event_.gap.gap_event, &ble_event->event_.gap.gap_param);
delete ble_event;
ble_event = this->ble_events_.pop();
}
bool connecting = false;
for (auto *client : this->clients_) {
if (client->state() == ClientState::Connecting || client->state() == ClientState::Discovered)
connecting = true;
}
if (!connecting && xSemaphoreTake(this->scan_end_lock_, 0L)) {
xSemaphoreGive(this->scan_end_lock_);
global_esp32_ble_tracker->start_scan(false);
}
@ -69,6 +85,17 @@ void ESP32BLETracker::loop() {
if (listener->parse_device(device))
found = true;
for (auto *client : this->clients_)
if (client->parse_device(device)) {
found = true;
if (client->state() == ClientState::Discovered) {
esp_ble_gap_stop_scanning();
if (xSemaphoreTake(this->scan_end_lock_, 10L / portTICK_PERIOD_MS)) {
xSemaphoreGive(this->scan_end_lock_);
}
}
}
if (!found) {
this->print_bt_device_info(device);
}
@ -122,6 +149,11 @@ bool ESP32BLETracker::ble_setup() {
ESP_LOGE(TAG, "esp_ble_gap_register_callback failed: %d", err);
return false;
}
err = esp_ble_gattc_register_callback(ESP32BLETracker::gattc_event_handler);
if (err != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gattc_register_callback failed: %d", err);
return false;
}
// Empty name
esp_ble_gap_set_device_name("");
@ -166,7 +198,17 @@ void ESP32BLETracker::start_scan(bool first) {
});
}
void ESP32BLETracker::register_client(ESPBTClient *client) {
client->app_id = ++this->app_id_;
this->clients_.push_back(client);
}
void ESP32BLETracker::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {
BLEEvent *gap_event = new BLEEvent(event, param);
global_esp32_ble_tracker->ble_events_.push(gap_event);
}
void ESP32BLETracker::real_gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) {
switch (event) {
case ESP_GAP_BLE_SCAN_RESULT_EVT:
global_esp32_ble_tracker->gap_scan_result(param->scan_rst);
@ -177,6 +219,9 @@ void ESP32BLETracker::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_ga
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
global_esp32_ble_tracker->gap_scan_start_complete(param->scan_start_cmpl);
break;
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
global_esp32_ble_tracker->gap_scan_stop_complete(param->scan_stop_cmpl);
break;
default:
break;
}
@ -190,6 +235,10 @@ void ESP32BLETracker::gap_scan_start_complete(const esp_ble_gap_cb_param_t::ble_
this->scan_start_failed_ = param.status;
}
void ESP32BLETracker::gap_scan_stop_complete(const esp_ble_gap_cb_param_t::ble_scan_stop_cmpl_evt_param &param) {
xSemaphoreGive(this->scan_end_lock_);
}
void ESP32BLETracker::gap_scan_result(const esp_ble_gap_cb_param_t::ble_scan_result_evt_param &param) {
if (param.search_evt == ESP_GAP_SEARCH_INQ_RES_EVT) {
if (xSemaphoreTake(this->scan_result_lock_, 0L)) {
@ -203,6 +252,19 @@ void ESP32BLETracker::gap_scan_result(const esp_ble_gap_cb_param_t::ble_scan_res
}
}
void ESP32BLETracker::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
BLEEvent *gattc_event = new BLEEvent(event, gattc_if, param);
global_esp32_ble_tracker->ble_events_.push(gattc_event);
}
void ESP32BLETracker::real_gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) {
for (auto *client : global_esp32_ble_tracker->clients_) {
client->gattc_event_handler(event, gattc_if, param);
}
}
ESPBTUUID::ESPBTUUID() : uuid_() {}
ESPBTUUID ESPBTUUID::from_uint16(uint16_t uuid) {
ESPBTUUID ret;
@ -223,6 +285,15 @@ ESPBTUUID ESPBTUUID::from_raw(const uint8_t *data) {
ret.uuid_.uuid.uuid128[i] = data[i];
return ret;
}
ESPBTUUID ESPBTUUID::from_uuid(esp_bt_uuid_t uuid) {
ESPBTUUID ret;
ret.uuid_.len = uuid.len;
ret.uuid_.uuid.uuid16 = uuid.uuid.uuid16;
ret.uuid_.uuid.uuid32 = uuid.uuid.uuid32;
for (size_t i = 0; i < ESP_UUID_LEN_128; i++)
ret.uuid_.uuid.uuid128[i] = uuid.uuid.uuid128[i];
return ret;
}
ESPBTUUID ESPBTUUID::as_128bit() const {
if (this->uuid_.len == ESP_UUID_LEN_128) {
return *this;
@ -289,16 +360,21 @@ std::string ESPBTUUID::to_string() {
char sbuf[64];
switch (this->uuid_.len) {
case ESP_UUID_LEN_16:
sprintf(sbuf, "%02X:%02X", this->uuid_.uuid.uuid16 >> 8, this->uuid_.uuid.uuid16 & 0xff);
sprintf(sbuf, "0x%02X%02X", this->uuid_.uuid.uuid16 >> 8, this->uuid_.uuid.uuid16 & 0xff);
break;
case ESP_UUID_LEN_32:
sprintf(sbuf, "%02X:%02X:%02X:%02X", this->uuid_.uuid.uuid32 >> 24, (this->uuid_.uuid.uuid32 >> 16 & 0xff),
sprintf(sbuf, "0x%02X%02X%02X%02X", this->uuid_.uuid.uuid32 >> 24, (this->uuid_.uuid.uuid32 >> 16 & 0xff),
(this->uuid_.uuid.uuid32 >> 8 & 0xff), this->uuid_.uuid.uuid32 & 0xff);
break;
default:
case ESP_UUID_LEN_128:
for (uint8_t i = 0; i < 16; i++)
sprintf(sbuf + i * 3, "%02X:", this->uuid_.uuid.uuid128[i]);
char *bpos = sbuf;
for (int8_t i = 15; i >= 0; i--) {
sprintf(bpos, "%02X", this->uuid_.uuid.uuid128[i]);
bpos += 2;
if (i == 3 || i == 5 || i == 7 || i == 9)
sprintf(bpos++, "-");
}
sbuf[47] = '\0';
break;
}

44
esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
View File

@ -2,12 +2,14 @@
#include "esphome/core/component.h"
#include "esphome/core/helpers.h"
#include "queue.h"
#ifdef ARDUINO_ARCH_ESP32
#include <string>
#include <array>
#include <esp_gap_ble_api.h>
#include <esp_gattc_api.h>
#include <esp_bt_defs.h>
namespace esphome {
@ -23,6 +25,8 @@ class ESPBTUUID {
static ESPBTUUID from_raw(const uint8_t *data);
static ESPBTUUID from_uuid(esp_bt_uuid_t uuid);
ESPBTUUID as_128bit() const;
bool contains(uint8_t data1, uint8_t data2) const;
@ -135,6 +139,32 @@ class ESPBTDeviceListener {
ESP32BLETracker *parent_{nullptr};
};
enum class ClientState {
// Connection is idle, no device detected.
Idle,
// Device advertisement found.
Discovered,
// Connection in progress.
Connecting,
// Initial connection established.
Connected,
// The client and sub-clients have completed setup.
Established,
};
class ESPBTClient : public ESPBTDeviceListener {
public:
virtual void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
esp_ble_gattc_cb_param_t *param) = 0;
virtual void connect() = 0;
void set_state(ClientState st) { this->state_ = st; }
ClientState state() const { return state_; }
int app_id;
protected:
ClientState state_;
};
class ESP32BLETracker : public Component {
public:
void set_scan_duration(uint32_t scan_duration) { scan_duration_ = scan_duration; }
@ -153,6 +183,8 @@ class ESP32BLETracker : public Component {
this->listeners_.push_back(listener);
}
void register_client(ESPBTClient *client);
void print_bt_device_info(const ESPBTDevice &device);
protected:
@ -162,16 +194,26 @@ class ESP32BLETracker : public Component {
void start_scan(bool first);
/// Callback that will handle all GAP events and redistribute them to other callbacks.
static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
void real_gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
/// Called when a `ESP_GAP_BLE_SCAN_RESULT_EVT` event is received.
void gap_scan_result(const esp_ble_gap_cb_param_t::ble_scan_result_evt_param &param);
/// Called when a `ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT` event is received.
void gap_scan_set_param_complete(const esp_ble_gap_cb_param_t::ble_scan_param_cmpl_evt_param &param);
/// Called when a `ESP_GAP_BLE_SCAN_START_COMPLETE_EVT` event is received.
void gap_scan_start_complete(const esp_ble_gap_cb_param_t::ble_scan_start_cmpl_evt_param &param);
/// Called when a `ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT` event is received.
void gap_scan_stop_complete(const esp_ble_gap_cb_param_t::ble_scan_stop_cmpl_evt_param &param);
int app_id_;
/// Callback that will handle all GATTC events and redistribute them to other callbacks.
static void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
void real_gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
/// Vector of addresses that have already been printed in print_bt_device_info
std::vector<uint64_t> already_discovered_;
std::vector<ESPBTDeviceListener *> listeners_;
/// Client parameters.
std::vector<ESPBTClient *> clients_;
/// A structure holding the ESP BLE scan parameters.
esp_ble_scan_params_t scan_params_;
/// The interval in seconds to perform scans.
@ -185,6 +227,8 @@ class ESP32BLETracker : public Component {
esp_ble_gap_cb_param_t::ble_scan_result_evt_param scan_result_buffer_[16];
esp_bt_status_t scan_start_failed_{ESP_BT_STATUS_SUCCESS};
esp_bt_status_t scan_set_param_failed_{ESP_BT_STATUS_SUCCESS};
Queue<BLEEvent> ble_events_;
};
extern ESP32BLETracker *global_esp32_ble_tracker;

96
esphome/components/esp32_ble_tracker/queue.h Normal file
View File

@ -0,0 +1,96 @@
#pragma once
#include "esphome/core/component.h"
#include "esphome/core/helpers.h"
#include <queue>
#include <mutex>
#ifdef ARDUINO_ARCH_ESP32
#include <esp_gap_ble_api.h>
#include <esp_gattc_api.h>
/*
* BLE events come in from a separate Task (thread) in the ESP32 stack. Rather
* than trying to deal wth various locking strategies, all incoming GAP and GATT
* events will simply be placed on a semaphore guarded queue. The next time the
* component runs loop(), these events are popped off the queue and handed at
* this safer time.
*/
namespace esphome {
namespace esp32_ble_tracker {
template<class T> class Queue {
public:
Queue() { m = xSemaphoreCreateMutex(); }
void push(T *element) {
if (element == nullptr)
return;
if (xSemaphoreTake(m, 5L / portTICK_PERIOD_MS)) {
q.push(element);
xSemaphoreGive(m);
}
}
T *pop() {
T *element = nullptr;
if (xSemaphoreTake(m, 5L / portTICK_PERIOD_MS)) {
if (!q.empty()) {
element = q.front();
q.pop();
}
xSemaphoreGive(m);
}
return element;
}
protected:
std::queue<T *> q;
SemaphoreHandle_t m;
};
// Received GAP and GATTC events are only queued, and get processed in the main loop().
// This class stores each event in a single type.
class BLEEvent {
public:
BLEEvent(esp_gap_ble_cb_event_t e, esp_ble_gap_cb_param_t *p) {
this->event_.gap.gap_event = e;
memcpy(&this->event_.gap.gap_param, p, sizeof(esp_ble_gap_cb_param_t));
this->type_ = 0;
};
BLEEvent(esp_gattc_cb_event_t e, esp_gatt_if_t i, esp_ble_gattc_cb_param_t *p) {
this->event_.gattc.gattc_event = e;
this->event_.gattc.gattc_if = i;
memcpy(&this->event_.gattc.gattc_param, p, sizeof(esp_ble_gattc_cb_param_t));
// Need to also make a copy of notify event data.
if (e == ESP_GATTC_NOTIFY_EVT) {
memcpy(this->event_.gattc.notify_data, p->notify.value, p->notify.value_len);
this->event_.gattc.gattc_param.notify.value = this->event_.gattc.notify_data;
}
this->type_ = 1;
};
union {
struct gap_event {
esp_gap_ble_cb_event_t gap_event;
esp_ble_gap_cb_param_t gap_param;
} gap;
struct gattc_event {
esp_gattc_cb_event_t gattc_event;
esp_gatt_if_t gattc_if;
esp_ble_gattc_cb_param_t gattc_param;
uint8_t notify_data[64];
} gattc;
} event_;
uint8_t type_; // 0=gap 1=gattc
};
} // namespace esp32_ble_tracker
} // namespace esphome
#endif

13
esphome/config.py
View File

@ -49,7 +49,7 @@ class ComponentManifest:
return getattr(self.module, "CONFIG_SCHEMA", None)
@property
def is_multi_conf(self):
def multi_conf(self):
return getattr(self.module, "MULTI_CONF", False)
@property
@ -194,7 +194,7 @@ _COMPONENT_CACHE["esphome"] = ComponentManifest(
def iter_components(config):
for domain, conf in config.items():
component = get_component(domain)
if component.is_multi_conf:
if component.multi_conf:
for conf_ in conf:
yield domain, component, conf_
else:
@ -651,9 +651,16 @@ def validate_config(config, command_line_substitutions):
)
continue
if comp.is_multi_conf:
if comp.multi_conf:
if not isinstance(conf, list):
result[domain] = conf = [conf]
if not isinstance(comp.multi_conf, bool) and len(conf) > comp.multi_conf:
result.add_str_error(
"Component {} supports a maximum of {} "
"entries ({} found).".format(domain, comp.multi_conf, len(conf)),
path,
)
continue
for i, part_conf in enumerate(conf):
validate_queue.append((path + [i], part_conf, comp))
continue

3
esphome/const.py
View File

@ -358,6 +358,8 @@ CONF_ON_BLE_MANUFACTURER_DATA_ADVERTISE = "on_ble_manufacturer_data_advertise"
CONF_ON_BLE_SERVICE_DATA_ADVERTISE = "on_ble_service_data_advertise"
CONF_ON_BOOT = "on_boot"
CONF_ON_CLICK = "on_click"
CONF_ON_CONNECT = "on_connect"
CONF_ON_DISCONNECT = "on_disconnect"
CONF_ON_DOUBLE_CLICK = "on_double_click"
CONF_ON_ENROLLMENT_DONE = "on_enrollment_done"
CONF_ON_ENROLLMENT_FAILED = "on_enrollment_failed"
@ -620,6 +622,7 @@ ICON_ACCOUNT = "mdi:account"
ICON_ACCOUNT_CHECK = "mdi:account-check"
ICON_ARROW_EXPAND_VERTICAL = "mdi:arrow-expand-vertical"
ICON_BATTERY = "mdi:battery"
ICON_BLUETOOTH = "mdi:bluetooth"
ICON_BRIEFCASE_DOWNLOAD = "mdi:briefcase-download"
ICON_BRIGHTNESS_5 = "mdi:brightness-5"
ICON_BUG = "mdi:bug"

29
tests/test1.yaml
View File

@ -9,6 +9,8 @@ esphome:
name_add_mac_suffix: true
platform: ESP32
board: nodemcu-32s
platformio_options:
board_build.partitions: huge_app.csv
on_boot:
priority: 150.0
then:
@ -235,6 +237,19 @@ wled:
adalight:
esp32_ble_tracker:
ble_client:
- mac_address: AA:BB:CC:DD:EE:FF
id: ble_foo
- mac_address: 11:22:33:44:55:66
id: ble_blah
on_connect:
then:
- switch.turn_on: ble1_status
on_disconnect:
then:
- switch.turn_on: ble1_status
mcp23s08:
- id: 'mcp23s08_hub'
cs_pin: GPIO12
@ -246,6 +261,18 @@ mcp23s17:
deviceaddress: 1
sensor:
- platform: ble_client
ble_client_id: ble_foo
name: "Green iTag btn"
service_uuid: 'ffe0'
characteristic_uuid: 'ffe1'
descriptor_uuid: 'ffe2'
notify: true
update_interval: never
on_notify:
then:
- lambda: |-
ESP_LOGD("green_btn", "Button was pressed, val%f", x);
- platform: adc
pin: A0
name: 'Living Room Brightness'
@ -1722,6 +1749,8 @@ switch:
# Use pin number 0
number: 0
inverted: False
- platform: template
id: ble1_status
fan:
- platform: binary