We would like to create a modbus library for Heltec ESP32. we found library that work on other Arduino but it will not compile for ESP32. anyone know about a good modbus library that work with ESP32?
We use ttl to 485 external chip and works perfectly
I’m looking to do something similar, using a rs4585 temp/humidity sensor with esp32 or esp8266.
I’m really new using the heltech esp’s and coding.
But I can learn from samples!
Can you share what you have done and how the code is put together to communicate with Rs485 to send and receive data from the sensor?