Esp32 Arduino code to read AcuDC 240 Series energy meter modbus registers and send values forward once in a minute via Lora.
TTL to rs485 converter is needed (3,3V or voltage divider for esp32 rx input in 5V device).
Esp32 Arduino code to read AcuDC 240 Series energy meter modbus registers and send values forward once in a minute via Lora.
TTL to rs485 converter is needed (3,3V or voltage divider for esp32 rx input in 5V device).