hi, i have an installation of node-red with gpio but when i connect an esp32 Tx pin to Rx pin of rpi4 it doesnt show what it sends if i put only gpio pin it shows 0 and 1 (assuming it’s sending something)
I apologize… The Rx pin was working fine… my mistake was connecting an esp32 through the Tx2 pin… if it was Tx0 there would be no problem, I simply changed my programming on esp32 and everything is fine.