I decided I needed better sound, so I created a new version of my touchscreen project. It is again constructed of 1/4" plexiglas.
Here is a front view.
The pushbuttons are implemented as plexiglas rods that run through a guide block to depress the tact switches on the
Future Electronics adapter board.
Here is a side view showing the volume knob, headphone jack, and power connector. These items are all contained on a
custom amplifier board I designed.
Here is the rear view. At the top are the speaker compartments, which are filled with fiberglas insulation. On the left,
you can see the WiFi connection, and the serial port, brought out on a ribbon cable. Guess I voided my warranty by
removing the 9-pin jack from the Wand PCB.
On the right is the custom board I built, with a TI amplifier chip, regulators, etc. I left the back plexiglas cover clear
so as to show off the "guts".
The USB debug cable for Android can be seen exiting at the bottom. Now all I have to do is get my apps working.