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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.
@Gordon
I'm afraid I can't help... Best bet is to look at the Datasheet and/or pins. If the device has an SPI connection then chances are it's got some kind of decoder in it though.
The 3 or 4 pin modules tend to be very basic radios.