Add PZEM004T/PZEMAC/PZEMDC Support (#587)

* Add PZEM004T Support * Don't flush as much * Update pzem004t.cpp * Add generalized modbus * Add PZEMAC * Add PZEMDC * Fix file modes * Lint * Fix * Fix * Add check_uart_settings
2026-06-07 13:24:56 +02:00 · 2019-10-20 19:24:20 +02:00
parent 644aec791e
commit d2c7afeef0
26 changed files with 738 additions and 7 deletions
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/uart/uart.h"
+#include "esphome/components/sensor/sensor.h"
+
+namespace esphome {
+namespace pzem004t {
+
+class PZEM004T : public PollingComponent, public uart::UARTDevice {
+ public:
+  void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
+  void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
+  void set_power_sensor(sensor::Sensor *power_sensor) { power_sensor_ = power_sensor; }
+
+  void loop() override;
+
+  void update() override;
+
+ protected:
+  sensor::Sensor *voltage_sensor_;
+  sensor::Sensor *current_sensor_;
+  sensor::Sensor *power_sensor_;
+
+  enum PZEM004TReadState {
+    SET_ADDRESS = 0xB4,
+    READ_VOLTAGE = 0xB0,
+    READ_CURRENT = 0xB1,
+    READ_POWER = 0xB2,
+    DONE = 0x00,
+  } read_state_{DONE};
+
+  void write_state_(PZEM004TReadState state);
+
+  uint32_t last_read_{0};
+};
+
+}  // namespace pzem004t
+}  // namespace esphome