Initial commit

include/data_model.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <Arduino.h>
+
+struct MeterData {
+  uint32_t ts_utc;
+  uint16_t short_id;
+  char device_id[16];
+  float energy_total_kwh;
+  float phase_power_w[3];
+  float total_power_w;
+  float phase_voltage_v[3];
+  float battery_voltage_v;
+  uint8_t battery_percent;
+  bool valid;
+};
+
+struct SenderStatus {
+  MeterData last_data;
+  uint32_t last_update_ts_utc;
+  bool has_data;
+};
+
+void init_device_ids(uint16_t &short_id, char *device_id, size_t device_id_len);