I have had two prototypes built of a WiFi / serial converter project where I am trying to replace an obsolete WiFi module with an ESP-07S. The old board has been used minus the WiFi module (which was pluggable). Both prototypes fail to start with the AiThinker AT-firmware and I have scratched my he…

ESP-07S prototype miswiring, how to solve...

Zapro May 12, 2018, 7:43pm 2

Why not cut the wire and move the loose end to +3.3V?

// Per.