I am testing Sketch without connected physical relay, works perfectly 2 day and send every hour on server temperature.
But problem is when connected relay , then the mbili reset, works few minutes and crash … hmmm
google say " RC snubbers" solve the problem, i am do not know
I wonder if anyone has experience with this problem and how to solve it,
thank you in advance
I forgot to say that relay runs a small AC motor 220V, 4VA, very small
Hmm, you connect a relay, how did you do that, did you use diod protection and are you sure the mbili can drive the relay ?
grove relay , http://www.seeedstudio.com/depot/Grove-Relay-p-769.html
i am not use diode protection , mbili why not drive relay 100mA on grove pin , not a problem