💬 RS485 MCU Module
openhardware.io last edited by openhardware.io
rozpruwacz last edited by
Did You considered powering the node over the rs-485 bus ? I found this paper (http://www.ti.com/lit/ug/tidu993/tidu993.pdf) that describes how to do it. It seem quite simple and I think that it would make the wiring much simpler (no need for PSU for every node).
feanor-anglin last edited by
Thank you for your comment. This idea seems quite interesting for me and certainly I will look into it in the future. But for now you need to know the best way to power up this modules is by using one PSU for the whole bus. It is very important to have common GND on every module on the bus. To do this you will need 4 wires though.