Yes, S4 is the one. If GND to VCC is 1.8v then the diode is almost certainly the problem (unless you still have something connected to the board that could be drawing too much power from it?).
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Yes,
S4
is the one. If GND to VCC is 1.8v then the diode is almost certainly the problem (unless you still have something connected to the board that could be drawing too much power from it?).