I'm using Raspberry Pi 4 with Ubuntu Server OS 20, with this hat that has 2 RS485 channels: https://www.waveshare.com/wiki/2-CH_RS485_HAT
I wish to use one of the RS485 channels to directly connect to a magnetic reed door sensor and read its digital input. This sensor has 2 identical wires which I assume should connect to the A and GND ports on the RS485. Is there a way to do so without any external hardware?
I wish to use one of the RS485 channels to directly connect to a magnetic reed door sensor and read its digital input. This sensor has 2 identical wires which I assume should connect to the A and GND ports on the RS485. Is there a way to do so without any external hardware?
Statistics: Posted by Spectra Moon — Tue Aug 06, 2024 10:53 am