I`m having some real trouble trying to sort a project at the moment -
I have the waveshare can hat connected to my pi hoping to read data from a Rs485 sht20 temp sensor.
The can hat
m stuck at what to do - Ive connected the can hat via the gpio pins and tried to get the modbus to speak to it via node red. There are python libraries used in the user manual but as I
m a newbie Im not sure how I can use these to read registers?
I also have a wingoneer usb2 to rs485 stick that I could use instwad, I`ve tried connecting that to the pi yet the serial again wont read it?
Any advice would be greatly appreciated.