Merge 04ff9ab7af into c7c0d97a5e

CODEOWNERS

@@ -28,6 +28,7 @@ esphome/components/airthings_ble/* @jeromelaban
 esphome/components/airthings_wave_base/* @jeromelaban @kpfleming @ncareau
 esphome/components/airthings_wave_mini/* @ncareau
 esphome/components/airthings_wave_plus/* @jeromelaban
+esphome/components/aj_sr04m/* @Masterz69
 esphome/components/alarm_control_panel/* @grahambrown11 @hwstar
 esphome/components/alpha3/* @jan-hofmeier
 esphome/components/am2315c/* @swoboda1337

esphome/components/aj_sr04m/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@Masterz69"]

esphome/components/aj_sr04m/aj_sr04m.cpp

@@ -0,0 +1,31 @@
+#include "aj_sr04m.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace aj_sr04m {
+
+static const char *const TAG = "aj_sr04m.sensor";
+
+void Ajsr04mComponent::setup() { ESP_LOGCONFIG(TAG, "Setting up AJ_SR04M Sensor..."); }
+void Ajsr04mComponent::update() {
+  this->write(0x55);
+  ESP_LOGV(TAG, "Request read out from sensor");
+
+  while (this->available() == 4) {
+    auto frame = *this->read_array<4>();
+    auto checksum = (frame[0] + frame[1] + frame[2]) & 0x00FF;
+    if ((frame[0] == 0xFF) && (checksum == frame[3])) {
+      float value = ((frame[1] << 8) + frame[2]) / 1000.0;
+      this->publish_state(value);
+    } else {
+      ESP_LOGW(TAG, "checksum failed: %02x != %02x", checksum, frame[3]);
+    }
+  }
+}
+void Ajsr04mComponent::dump_config() {
+  LOG_SENSOR("", "AJ_SR04M Sensor", this);
+  LOG_UPDATE_INTERVAL(this);
+}
+float Ajsr04mComponent::get_setup_priority() const { return setup_priority::DATA; }
+}  // namespace aj_sr04m
+}  // namespace esphome

esphome/components/aj_sr04m/aj_sr04m.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/uart/uart.h"
+
+namespace esphome {
+namespace aj_sr04m {
+
+class Ajsr04mComponent : public sensor::Sensor, public PollingComponent, public uart::UARTDevice {
+ public:
+  void setup() override;
+  void dump_config() override;
+
+  void update() override;
+
+  float get_setup_priority() const override;
+};
+
+}  // namespace aj_sr04m
+}  // namespace esphome

esphome/components/aj_sr04m/sensor.py

@@ -0,0 +1,48 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import sensor, uart
+from esphome.const import (
+    STATE_CLASS_MEASUREMENT,
+    UNIT_METER,
+    ICON_ARROW_EXPAND_VERTICAL,
+    DEVICE_CLASS_DISTANCE,
+)
+
+DEPENDENCIES = ["uart"]
+
+aj_sr04m_ns = cg.esphome_ns.namespace("aj_sr04m")
+Ajsr04mComponent = aj_sr04m_ns.class_(
+    "Ajsr04mComponent",
+    sensor.Sensor,
+    cg.PollingComponent,
+    uart.UARTDevice,
+)
+
+CONFIG_SCHEMA = (
+    sensor.sensor_schema(
+        Ajsr04mComponent,
+        unit_of_measurement=UNIT_METER,
+        icon=ICON_ARROW_EXPAND_VERTICAL,
+        accuracy_decimals=3,
+        state_class=STATE_CLASS_MEASUREMENT,
+        device_class=DEVICE_CLASS_DISTANCE,
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(uart.UART_DEVICE_SCHEMA)
+)
+
+FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
+    "aj_sr04m",
+    baud_rate=9600,
+    require_tx=True,
+    require_rx=True,
+    data_bits=8,
+    parity=None,
+    stop_bits=1,
+)
+
+
+async def to_code(config):
+    var = await sensor.new_sensor(config)
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)

tests/components/aj_sr04m/test.esp32-c3-idf.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 4
+    rx_pin:
+      number: 5
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s

tests/components/aj_sr04m/test.esp32-c3.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 4
+    rx_pin:
+      number: 5
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s

tests/components/aj_sr04m/test.esp32-idf.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 17
+    rx_pin:
+      number: 16
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s

tests/components/aj_sr04m/test.esp32.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 17
+    rx_pin:
+      number: 16
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s

tests/components/aj_sr04m/test.esp8266.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 4
+    rx_pin:
+      number: 5
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s

tests/components/aj_sr04m/test.rp2040.yaml

@@ -0,0 +1,14 @@
+uart:
+  - id: aj_sr04m_uart
+    tx_pin:
+      number: 4
+    rx_pin:
+      number: 5
+    baud_rate: 9600
+
+sensor:
+  - platform: aj_sr04m
+    id: aj_sr04m_sensor
+    name: "aj_sr04m Distance"
+    uart_id: aj_sr04m_uart
+    update_interval: 2s