Friday night at supercon I decided to spend some time on the I2C part of the firmware. It's pretty simple, but I'm now able to send data from the #Penghicorn badge to this SAO and it will play a tone. Of course this can be further expanded, but I'm quite happy with the beeps. The speaker is very quite though and I need to take a look at other preferably surface mount speakers. Someone made a beeping R2D2 SAO and that has a nice speaker I want to check out.