[chbot] 2.4GHz RF link info

[Robin Gilks]

Having been reminded that I was going to provide info on the Nordic
Semiconductor 2.4GHz transceivers, here we go!!

This is the supplier I used - there are many!!

http://www.aliexpress.com/item/Special-promotions-1100-meter-long-distance-NRF24L01-PA-LNA-wireless-modules-with-antenna/1739693481.html

The code I have hacked from various sources is here

https://github.com/g8ecj/bertos/blob/g8ecj/all/bertos/net/nrf24l01.c

but it is a part of the much larger BeRTOS system I have been expanding
over the last couple of years with a terminal emulator, i2c driver for the
LCD and 1-wire for sensors etc.

If anyone is interested I can supply the actual code I'm using on top of
the OS that ties it all together.


-- 
Robin Gilks