emonGLCD 433 / 868 Mhz RF Scanner & Signal Strength Meter

Martin Roberts has developed a fantastic bit of firmware for the emonGLCD to enable it to be used as an RF scanner and signal strength meter on the 433 / 868 Mhz RF band.

 This makes the emonGLCD running this firmware a useful tool for debugging RF transmission and checking out signal strength. To run the firmware a small hardware modification is required to the emonGLCD to access the analogue signal strength output signal from the RFM12B.

Martin's sketch has been added to the emonGLCD github repo.

Full details including build-guide and discussion can be found on the original forum thread.