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Add optional bindkey support for CGG1. (#1407)
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@ -103,7 +103,7 @@ bool parse_xiaomi_message(const std::vector<uint8_t> &message, XiaomiParseResult
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return false;
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}
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while (payload_length > 0) {
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while (payload_length > 3) {
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if (payload[payload_offset + 1] != 0x10) {
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ESP_LOGVV(TAG, "parse_xiaomi_message(): fixed byte not found, stop parsing residual data.");
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break;
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@ -171,7 +171,10 @@ optional<XiaomiParseResult> parse_xiaomi_header(const esp32_ble_tracker::Service
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result.type = XiaomiParseResult::TYPE_MUE4094RT;
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result.name = "MUE4094RT";
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result.raw_offset -= 6;
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} else if ((raw[2] == 0x47) && (raw[3] == 0x03)) { // round body, e-ink display
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} else if ((raw[2] == 0x47) && (raw[3] == 0x03)) { // ClearGrass-branded, round body, e-ink display
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result.type = XiaomiParseResult::TYPE_CGG1;
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result.name = "CGG1";
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} else if ((raw[2] == 0x48) && (raw[3] == 0x0B)) { // Qingping-branded, round body, e-ink display — with bindkeys
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result.type = XiaomiParseResult::TYPE_CGG1;
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result.name = "CGG1";
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} else if ((raw[2] == 0xbc) && (raw[3] == 0x03)) { // VegTrug Grow Care Garden
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@ -3,6 +3,7 @@ import esphome.config_validation as cv
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from esphome.components import sensor, esp32_ble_tracker
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from esphome.const import (
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CONF_BATTERY_LEVEL,
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CONF_BINDKEY,
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CONF_HUMIDITY,
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CONF_MAC_ADDRESS,
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CONF_TEMPERATURE,
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@ -27,6 +28,7 @@ CONFIG_SCHEMA = (
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cv.Schema(
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{
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cv.GenerateID(): cv.declare_id(XiaomiCGG1),
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cv.Optional(CONF_BINDKEY): cv.bind_key,
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cv.Required(CONF_MAC_ADDRESS): cv.mac_address,
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cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
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UNIT_CELSIUS, ICON_EMPTY, 1, DEVICE_CLASS_TEMPERATURE
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@ -50,6 +52,8 @@ def to_code(config):
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yield esp32_ble_tracker.register_ble_device(var, config)
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cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))
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if CONF_BINDKEY in config:
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cg.add(var.set_bindkey(config[CONF_BINDKEY]))
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if CONF_TEMPERATURE in config:
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sens = yield sensor.new_sensor(config[CONF_TEMPERATURE])
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@ -10,6 +10,7 @@ static const char *TAG = "xiaomi_cgg1";
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void XiaomiCGG1::dump_config() {
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ESP_LOGCONFIG(TAG, "Xiaomi CGG1");
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ESP_LOGCONFIG(TAG, " Bindkey: %s", hexencode(this->bindkey_, 16).c_str());
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LOG_SENSOR(" ", "Temperature", this->temperature_);
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LOG_SENSOR(" ", "Humidity", this->humidity_);
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LOG_SENSOR(" ", "Battery Level", this->battery_level_);
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@ -31,8 +32,9 @@ bool XiaomiCGG1::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
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if (res->is_duplicate) {
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continue;
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}
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if (res->has_encryption) {
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ESP_LOGVV(TAG, "parse_device(): payload decryption is currently not supported on this device.");
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if (res->has_encryption &&
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(!(xiaomi_ble::decrypt_xiaomi_payload(const_cast<std::vector<uint8_t> &>(service_data.data), this->bindkey_,
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this->address_)))) {
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continue;
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}
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if (!(xiaomi_ble::parse_xiaomi_message(service_data.data, *res))) {
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@ -57,6 +59,18 @@ bool XiaomiCGG1::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
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return true;
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}
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void XiaomiCGG1::set_bindkey(const std::string &bindkey) {
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memset(bindkey_, 0, 16);
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if (bindkey.size() != 32) {
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return;
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}
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char temp[3] = {0};
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for (int i = 0; i < 16; i++) {
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strncpy(temp, &(bindkey.c_str()[i * 2]), 2);
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bindkey_[i] = std::strtoul(temp, NULL, 16);
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}
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}
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} // namespace xiaomi_cgg1
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} // namespace esphome
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@ -13,6 +13,7 @@ namespace xiaomi_cgg1 {
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class XiaomiCGG1 : public Component, public esp32_ble_tracker::ESPBTDeviceListener {
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public:
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void set_address(uint64_t address) { address_ = address; }
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void set_bindkey(const std::string &bindkey);
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bool parse_device(const esp32_ble_tracker::ESPBTDevice &device) override;
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@ -24,6 +25,7 @@ class XiaomiCGG1 : public Component, public esp32_ble_tracker::ESPBTDeviceListen
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protected:
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uint64_t address_;
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uint8_t bindkey_[16];
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sensor::Sensor *temperature_{nullptr};
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sensor::Sensor *humidity_{nullptr};
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sensor::Sensor *battery_level_{nullptr};
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