I have already stoned the gpio in esp 2x in 3 years. This concerns the gpio to which the reed switch is connected between ground and the gpio monitoring the opening of the gate. That it's a gate, the cable from esp to reed switch is like 25m-30m (twisted pair). I suppose sometimes some surge will be generated on it and this is the reason for the gpio getting stoned. Can anyone advise how to protect the gpio?
