Finally made some progress with the speaker project; I have started to wire up all the electronics and mount them in the housing. Fortunately it looks like it is all going to fit :) Now I just have to put the stand alone arduino in place and it will be done.
I have also found a different use for the light switch switch that I started making last year. Due to the four buttons on the remote I thought perhaps it would be better as a quiz controller. By lighting up each button a different colour and coding a quiz on a computer with corresponding colours, the idea would work nicely.
After trying to work out how to control the computer with picaxe, the microcontroller I originally used in the project; I came to the conclusion my best bet was to hack open a keyboard and try and use a few transistors to act as 'electronic keys'.
I hot glued 4 npn transistors to the back of the board and them soldered the collector to the common bottom layer pin and each emitter to its top layer pin. Finally I connected some crimped ribbon cable to the 4 bases. After testing this out, I then set about adapting the original reciever board. Luckily I had used an oversize chip so I could use the rfout command. This left me with 4 digital IOs next to each other to which I soldered a SIL header for the ribbon cable to connect to.
The board looks a mess because after originally testing I realized that a buffer chip would be required. Hence the mess on the back of the board.