You are reading a single comment by @ferdinand and its replies.
Click here to read the full conversation.
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.
@ferdinand
when you use a mosfet to swith the gsm module on and off, and you use a serial connection to control the gsm with Rx,Tx, V and GND, would it be possible to use the V and GND from the serial connection to also turn the gsm on?
Since they are on and off at the same time.. That would save you connections to the board