31 March 2015

Great evening yesterday helping Garston Park Beavers learn morse code toward their communication badge. We started off demo'ing a simple Arduino AM radio transmitter which broadcast morse bursts at 1237KHz which we picked up on a cardboard FM radio.

We used some code from this forum post by AnyMouse and incorporated a morse translator over Serial from here.

You can get the code and resources we used on github

Code Compiled from a trawl of forums like 
uses the PORTB variable to create a frequency of up to 4MHz
listenable on analogue AM/FM radios