I am trying to create a serial link between a Pyboard running Micropython and a Pi Zero (Old model with no WiFi) running node-red 1.02.
I cannot receive any data on the pi using the serial port node (v0.9)
I can send data to the pyboard.
Loopback on the pyboard works.
Loopback on the pi does not.
There are no errors while starting and the node-red log also shows normal opening of the port with no errors when I deploy.
 the pi is running buster.