It's looking like it'd be a similar to Puck.js at the moment, maybe a smidge higher - definitely under £30 ex VAT one-off anyway.
@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.
It's looking like it'd be a similar to Puck.js at the moment, maybe a smidge higher - definitely under £30 ex VAT one-off anyway.