Recent content by IoTPlay

  1. IoTPlay

    Testing 8CH relay modbus using modpoll on Raspberry Pi - cannot get past "Reply time-out!"

    Hi, I am brand new to this forum, rs485, and modbus !!! I am trying to use WaveShare Modbus RTU 8-ch Relay Module connected to WaveShare USB to RS485 on Raspberry Pi, attempting to test over terminal - using ssh, to at least read the registers, using the tool modpoll on I...