Best posts made by Ivosch

I increased the capacity to 100uF and replaced delay() for wait() but no difference. Thanks for the hint about sender in receive() method, I will fix the functionality when the communication works. Any other idea?

hello,
my bad. The second capacitor has not been properly attached, now the node is communicating!
Thank you for the help.

note: 10uF wasn't enough, 110uF works fine for me