Hi im new to node red, am trying to read the values of a dht 22 sensor but shows unable to open /dev/gpiomem no such file or directory
First off, welcome to the forum!
It would help if you provided more information.
What version of NR are you running?
What platform are you running NR on?
How is the sensor connected to NR? (hard wired, connected to another device and sending the data to NR?
What node are you using to access the sensor?
It would be helpful if you provided your flow
Hi, Thanks, im using version 4.1.0, im running it from a pi 5 and it is sending the response to the same pi 5 gpio pins
the node is rpi dht22
It’s always wise to do a search to see if someone else has run into the same issue you are having. For instance this thread might be informative:
