Steve Anderson also suggested adding pins for the ESP01, just in case WiFi was needed - I don't think that would be too hard to do, but it definitely wouldn't run off a coin cell then!
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.
Steve Anderson also suggested adding pins for the ESP01, just in case WiFi was needed - I don't think that would be too hard to do, but it definitely wouldn't run off a coin cell then!