Add support for BL0906 energy meter (#7339)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

CODEOWNERS

@@ -58,6 +58,7 @@ esphome/components/beken_spi_led_strip/* @Mat931
 esphome/components/bh1750/* @OttoWinter
 esphome/components/binary_sensor/* @esphome/core
 esphome/components/bk72xx/* @kuba2k2
+esphome/components/bl0906/* @athom-tech @jesserockz @tarontop
 esphome/components/bl0939/* @ziceva
 esphome/components/bl0940/* @tobias-
 esphome/components/bl0942/* @dbuezas

esphome/components/bl0906/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@athom-tech", "@tarontop", "@jesserockz"]

esphome/components/bl0906/bl0906.cpp

@@ -0,0 +1,238 @@
+#include "bl0906.h"
+#include "constants.h"
+
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace bl0906 {
+
+static const char *const TAG = "bl0906";
+
+constexpr uint32_t to_uint32_t(ube24_t input) { return input.h << 16 | input.m << 8 | input.l; }
+
+constexpr int32_t to_int32_t(sbe24_t input) { return input.h << 16 | input.m << 8 | input.l; }
+
+// The SUM byte is (Addr+Data_L+Data_M+Data_H)&0xFF negated;
+constexpr uint8_t bl0906_checksum(const uint8_t address, const DataPacket *data) {
+  return (address + data->l + data->m + data->h) ^ 0xFF;
+}
+
+void BL0906::loop() {
+  if (this->current_channel_ == UINT8_MAX) {
+    return;
+  }
+
+  while (this->available())
+    this->flush();
+
+  if (this->current_channel_ == 0) {
+    // Temperature
+    this->read_data_(BL0906_TEMPERATURE, BL0906_TREF, this->temperature_sensor_);
+  } else if (this->current_channel_ == 1) {
+    this->read_data_(BL0906_I_1_RMS, BL0906_IREF, this->current_1_sensor_);
+    this->read_data_(BL0906_WATT_1, BL0906_PREF, this->power_1_sensor_);
+    this->read_data_(BL0906_CF_1_CNT, BL0906_EREF, this->energy_1_sensor_);
+  } else if (this->current_channel_ == 2) {
+    this->read_data_(BL0906_I_2_RMS, BL0906_IREF, this->current_2_sensor_);
+    this->read_data_(BL0906_WATT_2, BL0906_PREF, this->power_2_sensor_);
+    this->read_data_(BL0906_CF_2_CNT, BL0906_EREF, this->energy_2_sensor_);
+  } else if (this->current_channel_ == 3) {
+    this->read_data_(BL0906_I_3_RMS, BL0906_IREF, this->current_3_sensor_);
+    this->read_data_(BL0906_WATT_3, BL0906_PREF, this->power_3_sensor_);
+    this->read_data_(BL0906_CF_3_CNT, BL0906_EREF, this->energy_3_sensor_);
+  } else if (this->current_channel_ == 4) {
+    this->read_data_(BL0906_I_4_RMS, BL0906_IREF, this->current_4_sensor_);
+    this->read_data_(BL0906_WATT_4, BL0906_PREF, this->power_4_sensor_);
+    this->read_data_(BL0906_CF_4_CNT, BL0906_EREF, this->energy_4_sensor_);
+  } else if (this->current_channel_ == 5) {
+    this->read_data_(BL0906_I_5_RMS, BL0906_IREF, this->current_5_sensor_);
+    this->read_data_(BL0906_WATT_5, BL0906_PREF, this->power_5_sensor_);
+    this->read_data_(BL0906_CF_5_CNT, BL0906_EREF, this->energy_5_sensor_);
+  } else if (this->current_channel_ == 6) {
+    this->read_data_(BL0906_I_6_RMS, BL0906_IREF, this->current_6_sensor_);
+    this->read_data_(BL0906_WATT_6, BL0906_PREF, this->power_6_sensor_);
+    this->read_data_(BL0906_CF_6_CNT, BL0906_EREF, this->energy_6_sensor_);
+  } else if (this->current_channel_ == UINT8_MAX - 2) {
+    // Frequency
+    this->read_data_(BL0906_FREQUENCY, BL0906_FREF, frequency_sensor_);
+    // Voltage
+    this->read_data_(BL0906_V_RMS, BL0906_UREF, voltage_sensor_);
+  } else if (this->current_channel_ == UINT8_MAX - 1) {
+    // Total power
+    this->read_data_(BL0906_WATT_SUM, BL0906_WATT, this->total_power_sensor_);
+    // Total Energy
+    this->read_data_(BL0906_CF_SUM_CNT, BL0906_CF, this->total_energy_sensor_);
+  } else {
+    this->current_channel_ = UINT8_MAX - 2;  // Go to frequency and voltage
+    return;
+  }
+  this->current_channel_++;
+  this->handle_actions_();
+}
+
+void BL0906::setup() {
+  while (this->available())
+    this->flush();
+  this->write_array(USR_WRPROT_WITABLE, sizeof(USR_WRPROT_WITABLE));
+  // Calibration (1: register address; 2: value before calibration; 3: value after calibration)
+  this->bias_correction_(BL0906_RMSOS_1, 0.01600, 0);  // Calibration current_1
+  this->bias_correction_(BL0906_RMSOS_2, 0.01500, 0);
+  this->bias_correction_(BL0906_RMSOS_3, 0.01400, 0);
+  this->bias_correction_(BL0906_RMSOS_4, 0.01300, 0);
+  this->bias_correction_(BL0906_RMSOS_5, 0.01200, 0);
+  this->bias_correction_(BL0906_RMSOS_6, 0.01200, 0);  // Calibration current_6
+
+  this->write_array(USR_WRPROT_ONLYREAD, sizeof(USR_WRPROT_ONLYREAD));
+}
+
+void BL0906::update() { this->current_channel_ = 0; }
+
+size_t BL0906::enqueue_action_(ActionCallbackFuncPtr function) {
+  this->action_queue_.push_back(function);
+  return this->action_queue_.size();
+}
+
+void BL0906::handle_actions_() {
+  if (this->action_queue_.empty()) {
+    return;
+  }
+  ActionCallbackFuncPtr ptr_func = nullptr;
+  for (int i = 0; i < this->action_queue_.size(); i++) {
+    ptr_func = this->action_queue_[i];
+    if (ptr_func) {
+      ESP_LOGI(TAG, "HandleActionCallback[%d]...", i);
+      (this->*ptr_func)();
+    }
+  }
+
+  while (this->available()) {
+    this->read();
+  }
+
+  this->action_queue_.clear();
+}
+
+// Reset energy
+void BL0906::reset_energy_() {
+  this->write_array(BL0906_INIT[0], 6);
+  delay(1);
+  this->flush();
+
+  ESP_LOGW(TAG, "RMSOS:%02X%02X%02X%02X%02X%02X", BL0906_INIT[0][0], BL0906_INIT[0][1], BL0906_INIT[0][2],
+           BL0906_INIT[0][3], BL0906_INIT[0][4], BL0906_INIT[0][5]);
+}
+
+// Read data
+void BL0906::read_data_(const uint8_t address, const float reference, sensor::Sensor *sensor) {
+  if (sensor == nullptr) {
+    return;
+  }
+  DataPacket buffer;
+  ube24_t data_u24;
+  sbe24_t data_s24;
+  float value = 0;
+
+  bool signed_result = reference == BL0906_TREF || reference == BL0906_WATT || reference == BL0906_PREF;
+
+  this->write_byte(BL0906_READ_COMMAND);
+  this->write_byte(address);
+  if (this->read_array((uint8_t *) &buffer, sizeof(buffer) - 1)) {
+    if (bl0906_checksum(address, &buffer) == buffer.checksum) {
+      if (signed_result) {
+        data_s24.l = buffer.l;
+        data_s24.m = buffer.m;
+        data_s24.h = buffer.h;
+      } else {
+        data_u24.l = buffer.l;
+        data_u24.m = buffer.m;
+        data_u24.h = buffer.h;
+      }
+    } else {
+      ESP_LOGW(TAG, "Junk on wire. Throwing away partial message");
+      while (read() >= 0)
+        ;
+      return;
+    }
+  }
+  // Power
+  if (reference == BL0906_PREF) {
+    value = (float) to_int32_t(data_s24) * reference;
+  }
+
+  // Total power
+  if (reference == BL0906_WATT) {
+    value = (float) to_int32_t(data_s24) * reference;
+  }
+
+  // Voltage, current, power, total power
+  if (reference == BL0906_UREF || reference == BL0906_IREF || reference == BL0906_EREF || reference == BL0906_CF) {
+    value = (float) to_uint32_t(data_u24) * reference;
+  }
+
+  // Frequency
+  if (reference == BL0906_FREF) {
+    value = reference / (float) to_uint32_t(data_u24);
+  }
+  // Chip temperature
+  if (reference == BL0906_TREF) {
+    value = (float) to_int32_t(data_s24);
+    value = (value - 64) * 12.5 / 59 - 40;
+  }
+  sensor->publish_state(value);
+}
+
+// RMS offset correction
+void BL0906::bias_correction_(uint8_t address, float measurements, float correction) {
+  DataPacket data;
+  float ki = 12875 * 1 * (5.1 + 5.1) * 1000 / 2000 / 1.097;  // Current coefficient
+  float i_rms0 = measurements * ki;
+  float i_rms = correction * ki;
+  int32_t value = (i_rms * i_rms - i_rms0 * i_rms0) / 256;
+  data.l = value << 24 >> 24;
+  data.m = value << 16 >> 24;
+  if (value < 0) {
+    data.h = (value << 8 >> 24) | 0b10000000;
+  }
+  data.address = bl0906_checksum(address, &data);
+  ESP_LOGV(TAG, "RMSOS:%02X%02X%02X%02X%02X%02X", BL0906_WRITE_COMMAND, address, data.l, data.m, data.h, data.address);
+  this->write_byte(BL0906_WRITE_COMMAND);
+  this->write_byte(address);
+  this->write_byte(data.l);
+  this->write_byte(data.m);
+  this->write_byte(data.h);
+  this->write_byte(data.address);
+}
+
+void BL0906::dump_config() {
+  ESP_LOGCONFIG(TAG, "BL0906:");
+  LOG_SENSOR("  ", "Voltage", this->voltage_sensor_);
+
+  LOG_SENSOR("  ", "Current1", this->current_1_sensor_);
+  LOG_SENSOR("  ", "Current2", this->current_2_sensor_);
+  LOG_SENSOR("  ", "Current3", this->current_3_sensor_);
+  LOG_SENSOR("  ", "Current4", this->current_4_sensor_);
+  LOG_SENSOR("  ", "Current5", this->current_5_sensor_);
+  LOG_SENSOR("  ", "Current6", this->current_6_sensor_);
+
+  LOG_SENSOR("  ", "Power1", this->power_1_sensor_);
+  LOG_SENSOR("  ", "Power2", this->power_2_sensor_);
+  LOG_SENSOR("  ", "Power3", this->power_3_sensor_);
+  LOG_SENSOR("  ", "Power4", this->power_4_sensor_);
+  LOG_SENSOR("  ", "Power5", this->power_5_sensor_);
+  LOG_SENSOR("  ", "Power6", this->power_6_sensor_);
+
+  LOG_SENSOR("  ", "Energy1", this->energy_1_sensor_);
+  LOG_SENSOR("  ", "Energy2", this->energy_2_sensor_);
+  LOG_SENSOR("  ", "Energy3", this->energy_3_sensor_);
+  LOG_SENSOR("  ", "Energy4", this->energy_4_sensor_);
+  LOG_SENSOR("  ", "Energy5", this->energy_5_sensor_);
+  LOG_SENSOR("  ", "Energy6", this->energy_6_sensor_);
+
+  LOG_SENSOR("  ", "Total Power", this->total_power_sensor_);
+  LOG_SENSOR("  ", "Total Energy", this->total_energy_sensor_);
+  LOG_SENSOR("  ", "Frequency", this->frequency_sensor_);
+  LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
+}
+
+}  // namespace bl0906
+}  // namespace esphome

esphome/components/bl0906/bl0906.h

@@ -0,0 +1,96 @@
+#pragma once
+
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/uart/uart.h"
+#include "esphome/core/automation.h"
+#include "esphome/core/component.h"
+#include "esphome/core/datatypes.h"
+
+// https://www.belling.com.cn/media/file_object/bel_product/BL0906/datasheet/BL0906_V1.02_cn.pdf
+// https://www.belling.com.cn/media/file_object/bel_product/BL0906/guide/BL0906%20APP%20Note_V1.02.pdf
+
+namespace esphome {
+namespace bl0906 {
+
+struct DataPacket {  // NOLINT(altera-struct-pack-align)
+  uint8_t l{0};
+  uint8_t m{0};
+  uint8_t h{0};
+  uint8_t checksum;  // checksum
+  uint8_t address;
+} __attribute__((packed));
+
+struct ube24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
+  uint8_t l{0};
+  uint8_t m{0};
+  uint8_t h{0};
+} __attribute__((packed));
+
+struct sbe24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
+  uint8_t l{0};
+  uint8_t m{0};
+  int8_t h{0};
+} __attribute__((packed));
+
+template<typename... Ts> class ResetEnergyAction;
+
+class BL0906;
+
+using ActionCallbackFuncPtr = void (BL0906::*)();
+
+class BL0906 : public PollingComponent, public uart::UARTDevice {
+  SUB_SENSOR(voltage)
+  SUB_SENSOR(current_1)
+  SUB_SENSOR(current_2)
+  SUB_SENSOR(current_3)
+  SUB_SENSOR(current_4)
+  SUB_SENSOR(current_5)
+  SUB_SENSOR(current_6)
+  SUB_SENSOR(power_1)
+  SUB_SENSOR(power_2)
+  SUB_SENSOR(power_3)
+  SUB_SENSOR(power_4)
+  SUB_SENSOR(power_5)
+  SUB_SENSOR(power_6)
+  SUB_SENSOR(total_power)
+  SUB_SENSOR(energy_1)
+  SUB_SENSOR(energy_2)
+  SUB_SENSOR(energy_3)
+  SUB_SENSOR(energy_4)
+  SUB_SENSOR(energy_5)
+  SUB_SENSOR(energy_6)
+  SUB_SENSOR(total_energy)
+  SUB_SENSOR(frequency)
+  SUB_SENSOR(temperature)
+
+ public:
+  void loop() override;
+
+  void update() override;
+  void setup() override;
+  void dump_config() override;
+
+ protected:
+  template<typename... Ts> friend class ResetEnergyAction;
+
+  void reset_energy_();
+
+  void read_data_(uint8_t address, float reference, sensor::Sensor *sensor);
+
+  void bias_correction_(uint8_t address, float measurements, float correction);
+
+  uint8_t current_channel_{0};
+  size_t enqueue_action_(ActionCallbackFuncPtr function);
+  void handle_actions_();
+
+ private:
+  std::vector<ActionCallbackFuncPtr> action_queue_{};
+};
+
+template<typename... Ts> class ResetEnergyAction : public Action<Ts...>, public Parented<BL0906> {
+ public:
+  void play(Ts... x) override { this->parent_->enqueue_action_(&BL0906::reset_energy_); }
+};
+
+}  // namespace bl0906
+}  // namespace esphome

esphome/components/bl0906/const.py

@@ -0,0 +1,4 @@
+# const.py
+ICON_ENERGY = "mdi:lightning-bolt"
+ICON_FREQUENCY = "mdi:cosine-wave"
+ICON_VOLTAGE = "mdi:sine-wave"

esphome/components/bl0906/constants.h

@@ -0,0 +1,122 @@
+#pragma once
+#include <cstdint>
+
+namespace esphome {
+namespace bl0906 {
+
+// Total power conversion
+static const float BL0906_WATT = 16 * 1.097 * 1.097 * (20000 + 20000 + 20000 + 20000 + 20000) /
+                                 (40.41259 * ((5.1 + 5.1) * 1000 / 2000) * 1 * 100 * 1 * 1000);
+// Total Energy conversion
+static const float BL0906_CF = 16 * 4194304 * 0.032768 * 16 /
+                               (3600000 * 16 *
+                                (40.4125 * ((5.1 + 5.1) * 1000 / 2000) * 1 * 100 * 1 * 1000 /
+                                 (1.097 * 1.097 * (20000 + 20000 + 20000 + 20000 + 20000))));
+// Frequency conversion
+static const float BL0906_FREF = 10000000;
+// Temperature conversion
+static const float BL0906_TREF = 12.5 / 59 - 40;
+// Current conversion
+static const float BL0906_IREF = 1.097 / (12875 * 1 * (5.1 + 5.1) * 1000 / 2000);
+// Voltage conversion
+static const float BL0906_UREF = 1.097 * (20000 + 20000 + 20000 + 20000 + 20000) / (13162 * 1 * 100 * 1000);
+// Power conversion
+static const float BL0906_PREF = 1.097 * 1.097 * (20000 + 20000 + 20000 + 20000 + 20000) /
+                                 (40.41259 * ((5.1 + 5.1) * 1000 / 2000) * 1 * 100 * 1 * 1000);
+// Energy conversion
+static const float BL0906_EREF = 4194304 * 0.032768 * 16 /
+                                 (3600000 * 16 *
+                                  (40.4125 * ((5.1 + 5.1) * 1000 / 2000) * 1 * 100 * 1 * 1000 /
+                                   (1.097 * 1.097 * (20000 + 20000 + 20000 + 20000 + 20000))));
+// Current coefficient
+static const float BL0906_KI = 12875 * 1 * (5.1 + 5.1) * 1000 / 2000 / 1.097;
+// Power coefficient
+static const float BL0906_KP = 40.4125 * ((5.1 + 5.1) * 1000 / 2000) * 1 * 100 * 1 * 1000 / 1.097 / 1.097 /
+                               (20000 + 20000 + 20000 + 20000 + 20000);
+
+static const uint8_t USR_WRPROT_WITABLE[6] = {0xCA, 0x9E, 0x55, 0x55, 0x00, 0xB7};
+static const uint8_t USR_WRPROT_ONLYREAD[6] = {0xCA, 0x9E, 0x00, 0x00, 0x00, 0x61};
+
+static const uint8_t BL0906_READ_COMMAND = 0x35;
+static const uint8_t BL0906_WRITE_COMMAND = 0xCA;
+
+// Register address
+// Voltage
+static const uint8_t BL0906_V_RMS = 0x16;
+
+// Total power
+static const uint8_t BL0906_WATT_SUM = 0X2C;
+
+// Current1~6
+static const uint8_t BL0906_I_1_RMS = 0x0D;  // current_1
+static const uint8_t BL0906_I_2_RMS = 0x0E;
+static const uint8_t BL0906_I_3_RMS = 0x0F;
+static const uint8_t BL0906_I_4_RMS = 0x10;
+static const uint8_t BL0906_I_5_RMS = 0x13;
+static const uint8_t BL0906_I_6_RMS = 0x14;  // current_6
+
+// Power1~6
+static const uint8_t BL0906_WATT_1 = 0X23;  // power_1
+static const uint8_t BL0906_WATT_2 = 0X24;
+static const uint8_t BL0906_WATT_3 = 0X25;
+static const uint8_t BL0906_WATT_4 = 0X26;
+static const uint8_t BL0906_WATT_5 = 0X29;
+static const uint8_t BL0906_WATT_6 = 0X2A;  // power_6
+
+// Active pulse count, unsigned
+static const uint8_t BL0906_CF_1_CNT = 0X30;  // Channel_1
+static const uint8_t BL0906_CF_2_CNT = 0X31;
+static const uint8_t BL0906_CF_3_CNT = 0X32;
+static const uint8_t BL0906_CF_4_CNT = 0X33;
+static const uint8_t BL0906_CF_5_CNT = 0X36;
+static const uint8_t BL0906_CF_6_CNT = 0X37;  // Channel_6
+
+// Total active pulse count, unsigned
+static const uint8_t BL0906_CF_SUM_CNT = 0X39;
+
+// Voltage frequency cycle
+static const uint8_t BL0906_FREQUENCY = 0X4E;
+
+// Internal temperature
+static const uint8_t BL0906_TEMPERATURE = 0X5E;
+
+// Calibration register
+// RMS gain adjustment register
+static const uint8_t BL0906_RMSGN_1 = 0x6D;  // Channel_1
+static const uint8_t BL0906_RMSGN_2 = 0x6E;
+static const uint8_t BL0906_RMSGN_3 = 0x6F;
+static const uint8_t BL0906_RMSGN_4 = 0x70;
+static const uint8_t BL0906_RMSGN_5 = 0x73;
+static const uint8_t BL0906_RMSGN_6 = 0x74;  // Channel_6
+
+// RMS offset correction register
+static const uint8_t BL0906_RMSOS_1 = 0x78;  // Channel_1
+static const uint8_t BL0906_RMSOS_2 = 0x79;
+static const uint8_t BL0906_RMSOS_3 = 0x7A;
+static const uint8_t BL0906_RMSOS_4 = 0x7B;
+static const uint8_t BL0906_RMSOS_5 = 0x7E;
+static const uint8_t BL0906_RMSOS_6 = 0x7F;  // Channel_6
+
+// Active power gain adjustment register
+static const uint8_t BL0906_WATTGN_1 = 0xB7;  // Channel_1
+static const uint8_t BL0906_WATTGN_2 = 0xB8;
+static const uint8_t BL0906_WATTGN_3 = 0xB9;
+static const uint8_t BL0906_WATTGN_4 = 0xBA;
+static const uint8_t BL0906_WATTGN_5 = 0xBD;
+static const uint8_t BL0906_WATTGN_6 = 0xBE;  // Channel_6
+
+// User write protection setting register,
+// You must first write 0x5555 to the write protection setting register before writing to other registers.
+static const uint8_t BL0906_USR_WRPROT = 0x9E;
+
+// Reset Register
+static const uint8_t BL0906_SOFT_RESET = 0x9F;
+
+const uint8_t BL0906_INIT[2][6] = {
+    // Reset to default
+    {BL0906_WRITE_COMMAND, BL0906_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x52},
+    // Enable User Operation Write
+    {BL0906_WRITE_COMMAND, BL0906_USR_WRPROT, 0x55, 0x55, 0x00, 0xB7}};
+
+}  // namespace bl0906
+}  // namespace esphome

esphome/components/bl0906/sensor.py

@@ -0,0 +1,184 @@
+from esphome import automation
+from esphome.automation import maybe_simple_id
+import esphome.codegen as cg
+from esphome.components import sensor, uart
+import esphome.config_validation as cv
+from esphome.const import (
+    CONF_CHANNEL,
+    CONF_CURRENT,
+    CONF_ENERGY,
+    CONF_FREQUENCY,
+    CONF_ID,
+    CONF_NAME,
+    CONF_POWER,
+    CONF_TEMPERATURE,
+    CONF_TOTAL_POWER,
+    CONF_VOLTAGE,
+    DEVICE_CLASS_CURRENT,
+    DEVICE_CLASS_ENERGY,
+    DEVICE_CLASS_FREQUENCY,
+    DEVICE_CLASS_POWER,
+    DEVICE_CLASS_TEMPERATURE,
+    DEVICE_CLASS_VOLTAGE,
+    ICON_CURRENT_AC,
+    ICON_POWER,
+    ICON_THERMOMETER,
+    STATE_CLASS_MEASUREMENT,
+    STATE_CLASS_TOTAL_INCREASING,
+    UNIT_AMPERE,
+    UNIT_CELSIUS,
+    UNIT_HERTZ,
+    UNIT_KILOWATT_HOURS,
+    UNIT_VOLT,
+    UNIT_WATT,
+)
+
+# Import ICONS not included in esphome's const.py, from the local components const.py
+from .const import ICON_ENERGY, ICON_FREQUENCY, ICON_VOLTAGE
+
+DEPENDENCIES = ["uart"]
+AUTO_LOAD = ["bl0906"]
+CONF_TOTAL_ENERGY = "total_energy"
+
+bl0906_ns = cg.esphome_ns.namespace("bl0906")
+BL0906 = bl0906_ns.class_("BL0906", cg.PollingComponent, uart.UARTDevice)
+ResetEnergyAction = bl0906_ns.class_("ResetEnergyAction", automation.Action)
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(BL0906),
+            cv.Optional(CONF_FREQUENCY): sensor.sensor_schema(
+                icon=ICON_FREQUENCY,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_FREQUENCY,
+                unit_of_measurement=UNIT_HERTZ,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                icon=ICON_THERMOMETER,
+                accuracy_decimals=0,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+                unit_of_measurement=UNIT_CELSIUS,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
+                icon=ICON_VOLTAGE,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_VOLTAGE,
+                unit_of_measurement=UNIT_VOLT,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_TOTAL_POWER): sensor.sensor_schema(
+                icon=ICON_POWER,
+                accuracy_decimals=3,
+                device_class=DEVICE_CLASS_POWER,
+                unit_of_measurement=UNIT_WATT,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ),
+            cv.Optional(CONF_TOTAL_ENERGY): sensor.sensor_schema(
+                icon=ICON_ENERGY,
+                accuracy_decimals=3,
+                device_class=DEVICE_CLASS_ENERGY,
+                state_class=STATE_CLASS_TOTAL_INCREASING,
+                unit_of_measurement=UNIT_KILOWATT_HOURS,
+            ),
+        }
+    )
+    .extend(
+        cv.Schema(
+            {
+                cv.Optional(f"{CONF_CHANNEL}_{i + 1}"): cv.Schema(
+                    {
+                        cv.Optional(CONF_CURRENT): cv.maybe_simple_value(
+                            sensor.sensor_schema(
+                                icon=ICON_CURRENT_AC,
+                                accuracy_decimals=3,
+                                device_class=DEVICE_CLASS_CURRENT,
+                                unit_of_measurement=UNIT_AMPERE,
+                                state_class=STATE_CLASS_MEASUREMENT,
+                            ),
+                            key=CONF_NAME,
+                        ),
+                        cv.Optional(CONF_POWER): cv.maybe_simple_value(
+                            sensor.sensor_schema(
+                                icon=ICON_POWER,
+                                accuracy_decimals=0,
+                                device_class=DEVICE_CLASS_POWER,
+                                unit_of_measurement=UNIT_WATT,
+                                state_class=STATE_CLASS_MEASUREMENT,
+                            ),
+                            key=CONF_NAME,
+                        ),
+                        cv.Optional(CONF_ENERGY): cv.maybe_simple_value(
+                            sensor.sensor_schema(
+                                icon=ICON_ENERGY,
+                                accuracy_decimals=3,
+                                device_class=DEVICE_CLASS_ENERGY,
+                                unit_of_measurement=UNIT_KILOWATT_HOURS,
+                                state_class=STATE_CLASS_TOTAL_INCREASING,
+                            ),
+                            key=CONF_NAME,
+                        ),
+                    }
+                )
+                for i in range(6)
+            }
+        )
+    )
+    .extend(uart.UART_DEVICE_SCHEMA)
+    .extend(cv.polling_component_schema("60s"))
+)
+
+FINAL_VALIDATE_SCHEMA = uart.final_validate_device_schema(
+    "bl0906", baud_rate=19200, require_tx=True, require_rx=True
+)
+
+
+@automation.register_action(
+    "bl0906.reset_energy",
+    ResetEnergyAction,
+    maybe_simple_id(
+        {
+            cv.Required(CONF_ID): cv.use_id(BL0906),
+        }
+    ),
+)
+async def reset_energy_to_code(config, action_id, template_arg, args):
+    paren = await cg.get_variable(config[CONF_ID])
+    return cg.new_Pvariable(action_id, template_arg, paren)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)
+    if frequency_config := config.get(CONF_FREQUENCY):
+        sens = await sensor.new_sensor(frequency_config)
+        cg.add(var.set_frequency_sensor(sens))
+    if temperature_config := config.get(CONF_TEMPERATURE):
+        sens = await sensor.new_sensor(temperature_config)
+        cg.add(var.set_temperature_sensor(sens))
+    if voltage_config := config.get(CONF_VOLTAGE):
+        sens = await sensor.new_sensor(voltage_config)
+        cg.add(var.set_voltage_sensor(sens))
+
+    for i in range(6):
+        if channel_config := config.get(f"{CONF_CHANNEL}_{i + 1}"):
+            if current_config := channel_config.get(CONF_CURRENT):
+                sens = await sensor.new_sensor(current_config)
+                cg.add(getattr(var, f"set_current_{i + 1}_sensor")(sens))
+            if power_config := channel_config.get(CONF_POWER):
+                sens = await sensor.new_sensor(power_config)
+                cg.add(getattr(var, f"set_power_{i + 1}_sensor")(sens))
+            if energy_config := channel_config.get(CONF_ENERGY):
+                sens = await sensor.new_sensor(energy_config)
+                cg.add(getattr(var, f"set_energy_{i + 1}_sensor")(sens))
+
+    if total_power_config := config.get(CONF_TOTAL_POWER):
+        sens = await sensor.new_sensor(total_power_config)
+        cg.add(var.set_total_power_sensor(sens))
+
+    if total_energy_config := config.get(CONF_TOTAL_ENERGY):
+        sens = await sensor.new_sensor(total_energy_config)
+        cg.add(var.set_total_energy_sensor(sens))

tests/components/bl0906/common.yaml

@@ -0,0 +1,62 @@
+uart:
+  - id: uart_bl0906
+    tx_pin:
+      number: ${tx_pin}
+    rx_pin:
+      number: ${rx_pin}
+    baud_rate: 19200
+
+sensor:
+  - platform: bl0906
+    frequency:
+      name: 'Frequency'
+    temperature:
+      name: 'Temperature'
+    voltage:
+      name: 'Voltage'
+    channel_1:
+      current:
+        name: 'Current_1'
+      power:
+        name: 'Power_1'
+      energy:
+        name: 'Energy_1'
+    channel_2:
+      current:
+        name: 'Current_2'
+      power:
+        name: 'Power_2'
+      energy:
+        name: 'Energy_2'
+    channel_3:
+      current:
+        name: 'Current_3'
+      power:
+        name: 'Power_3'
+      energy:
+        name: 'Energy_3'
+    channel_4:
+      current:
+        name: 'Current_4'
+      power:
+        name: 'Power_4'
+      energy:
+        name: 'Energy_4'
+    channel_5:
+      current:
+        name: 'Current_5'
+      power:
+        name: 'Power_5'
+      energy:
+        name: 'Energy_5'
+    channel_6:
+      current:
+        name: 'Current_6'
+      power:
+        name: 'Power_6'
+      energy:
+        name: 'Energy_6'
+    total_energy:
+      name: 'Total_Energy'
+    total_power:
+      name: 'Total_Power'

tests/components/bl0906/test.esp32-ard.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO12
+  rx_pin: GPIO14
+
+<<: !include common.yaml

tests/components/bl0906/test.esp32-c3-ard.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO7
+  rx_pin: GPIO8
+
+<<: !include common.yaml

tests/components/bl0906/test.esp32-c3-idf.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO7
+  rx_pin: GPIO8
+
+<<: !include common.yaml

tests/components/bl0906/test.esp32-idf.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO12
+  rx_pin: GPIO14
+
+<<: !include common.yaml

tests/components/bl0906/test.esp8266-ard.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO1
+  rx_pin: GPIO3
+
+<<: !include common.yaml

tests/components/bl0906/test.rp2040-ard.yaml

@@ -0,0 +1,5 @@
+substitutions:
+  tx_pin: GPIO4
+  rx_pin: GPIO5
+
+<<: !include common.yaml