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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.
@MaBe
I like the
Micro Mini 3.3 V Volt Ultraschall RCW-0001 Ultrasonic Sensor
same as HC-SR04, just smaller and runs with 3v3 volt.