Note that a bunch of those use nRF51 - so would run Espruino, but are pretty limited in terms of RAM/Flash
@Gordon started
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.
Note that a bunch of those use nRF51 - so would run Espruino, but are pretty limited in terms of RAM/Flash