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by iotdeveloper
Wed Mar 13, 2024 5:27 pm
Forum: Hardware
Topic: Heltec Wireless Stick V3: Modbus RS485 not working
Replies: 0
Views: 714

Heltec Wireless Stick V3: Modbus RS485 not working

Hello,I am trying to set up communication with the Epever MPPT controller via Modbus. Unfortunately, with Heltec Wireless Stick V3 (https://heltec.org/project/wireless-stick-v3/) the communication does not work - on the serial port it says something like: 1~⸮226 I tried the same code on the ESP32 Wr...