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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.
@JumJum
I drive a small and cheap speaker (10 pieces for 8€) directly from MP3-Board.
You can set volume from 0 to 30.
But even 30 is not very noisy.
I will check an amplifier (already ordered one for less than an €)