You are reading a single comment by @Disco_VW 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.
@Disco_VW
Powering directly with 12v would be nice, however both the relay module (https://www.espruino.com/Relays) and the ultrasonic sensor (https://www.espruino.com/HC-SR04) might have a problem I've guess...