Ok, thanks for the update.
I thought I could connect multiple Picos a la RS485 via USART, but I think that wouldn't be very easy to accomplish.
That's actually pretty easy and it works really nicely - I posted some example code on your new post about this here: http://forum.espruino.com/conversations/336570/#comment14837888
@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.
Ok, thanks for the update.
That's actually pretty easy and it works really nicely - I posted some example code on your new post about this here: http://forum.espruino.com/conversations/336570/#comment14837888