Moving on to smaller platforms, I tried out the Gemma device that Adafruit puts out, and built the inner workings of their Chirping Owl project. I wasn’t very interested in the owl part of this, and the sounds are not very owl-like to start with. It was more about testing out the platform for simple audio delivery. Check out the video on Flickr below.
Overall this was a quick an easy project, though I didn’t have a LiPo battery when I finished, and had to run it off USB power. Later I got some batteries to use for this platform, and began to study the various types of LiPo batteries and chargers needed for smaller projects like this. After all, who wants to keep buying 9 volts?
2015 Update – It appears there is now a Gemma 2 board which includes an off switch!