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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.
@fanoush
As mentioned the power rail is fed from 5V so this might be the real issue. I have this breadboard power adapter too, it is nice that you can have both 3.3V and 5V on different sides of breadboard but it is easy to mix it.
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