The hardware problem is that the cheap XY-MK-5V receivers starts to self oscillate in the absence of a real signal, which creates the “no signal noise” on the data out pin (but I guess you know all this).
The software problem is that I can’t use interrupts on the data pin to catch signals. It gets triggered all the time due to the noise, halting everything and makes Blynk go bananas (if I’m lucky) before it disconnects. There is probably some tweaks that could make this setup work better, but that’s beyond my grasp.
Well… yes and no. I wanted to test Blynk over a little longer period of time to figure out my actual needs, difficulty to use, QoS etc. It felt better to learn how to use what I had before buying something I didn’t need
I’m gonna keep using 433Mhz controlled plugs, but with a LoRa/ISM RF instead. Probably hooked up to a Wemos D1 Mini. But having a hard time deciding on which transceiver I want