Here is a prototype of one of my circuit boards for the planned BOOMstick Audio board family. This series was introduced in my previous post. It is intended for use with Lutz Lisseck's SimpleSDAudio Arduino library and my port of that library to ChipKit, BasicSDAudio. Really, it should work for any PWM-based audio system, including the Tone library.
|Top side of the BabyBOOMER Audio board prototype|
- small (only 0.56 sqin)
- breadboard friendly (basic 0.1" headers)
- at least 1W speaker output using 8ohm speaker (efficient class D amplifier)
- easily accessible volume control (right out on top)
- lower PWM noise including buffers, filters, and a pseudo 16-bit mode
|Bottom side of the BabyBOOMER Audio board prototype|
Time for some real testing!