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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.
@Robin
Wed 2019.12.04
Hi @user106332 it appears range is something that is desired. Have you considered a low cost module like this - Radar RCWL-0516 (haven't tested and not sure of hookup for your project requirement)
Wasn't able to find the YouTube video demo link. If I do, I shall post . . . .