I am trying to use an arduino mega as digital I/O pins using serial directly plugged into my HA Green. I followed what I thought were decent examples, but I am not getting anything read in.
Here is the configuration file. I initialized the serial port here, because it did would not compile when in the binary_sensors.YAML file.
Is there a way to import the float data, makes sure I am sending only 1.00 and 0.00, then convert the numbers in YAML to Boolean, then assign them to binary sensors?
This is for an alarmo system and I prefer not to have networking required (more power and complexity for an alarm application).
My fall back plan is Ethernet with MQTT. I am pretty sure my examples for that will work.
Ok, since I have a HA Green, I have read that the HA install is in a Docker container and does not have access to the serial ports directly, so I cannot do the serial read functions without hacking the install.
I think my fall back plan will be to do wired Ethernet with MQTT using discovery to create my sensors.
