Well, you could work around that issue with the NRF24 by changing the JavaScript code in the module. I don't have time to do it all for you, so I'm afraid you need to dig around and make the changes yourself.
I've heard good things about http://shop.ciseco.co.uk/erf-0-1-pin-spaced-radio-module/ - it works using serial comms, so you can actually program Espruino over it. Personally I haven't used it though, and I'm not sure if it does multipoint.
Otherwise there's http://www.espruino.com/433Mhz - which is very basic (and one-way). You'd have to make all your own transmitter/receiver code for it though, which could be hard to get right.
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.
Well, you could work around that issue with the NRF24 by changing the JavaScript code in the module. I don't have time to do it all for you, so I'm afraid you need to dig around and make the changes yourself.
I've heard good things about http://shop.ciseco.co.uk/erf-0-1-pin-spaced-radio-module/ - it works using serial comms, so you can actually program Espruino over it. Personally I haven't used it though, and I'm not sure if it does multipoint.
Otherwise there's http://www.espruino.com/433Mhz - which is very basic (and one-way). You'd have to make all your own transmitter/receiver code for it though, which could be hard to get right.