ESP8266 Community Forum

bowlman42 wrote:Now switching mains without a problem using a 2A solid state relay.

Did you also try a 'normal relay? Solid State Relay's do not create EMP so this won't be picked up by the RST line.

Sweetpants wrote:

bowlman42 wrote:Now switching mains without a problem using a 2A solid state relay.

Did you also try a 'normal relay? Solid State Relay's do not create EMP so this won't be picked up by the RST line.

I haven't tried a coil relay but the ESP-01 was picking up all sorts of interference, if I put my finger near the thing it went crazy. After I connected the earth it became rock solid. I don't think the type of relay is the problem.

kerpz wrote:@Sweetpants since you put a decoupling at rst near the chip you don't need to cut the line toward the header pin, and you can still use the rst function. that 100nF is a low pass filter that removes high freq noise before reaching the chip.

Not quite true, if I do not cut the wire to the header, I still have the same problem. Touching the RST wire the ESP resets during switching and touching the RST header pin also.

Have you tried using varistors across the relay terminals.May be it will help