Nouveau : le pare-feu IA surveille toute la plateforme et explique chaque incident en termes simples. Découvrez comment ça marche

Reply To: pymodbus on a Pi 3 RS-485 HAT: no response from the meter on ttyS0

Did you turn Bluetooth off? On the Pi 3 the good UART goes to Bluetooth by default.

QoS 1 and a lot of patience.
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