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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.
@Jean-Philippe_Rey
Microchip provides an evaluation board for this module : http://www.microchip.com/DevelopmentTools/ProductDetails.aspx?PartNO=dm164138 , unfortunately it is not cheap at all. (60~70$)
if you just want to try the radio on a short distance, let's say, between 2 devices on your desk, you don't need to take a special care about the ground connexions, therefore you can just solder wires between pads.