|  | The
first thing I added was an infrared LED and receiver. I mess around
with IR from time to time and having 4 big LEDs seemed a waste,
especially with the additional LEDs I added... |
|  | Next,
I added a piezo type buzzer with an ON/OFF switch connected to RA2. I
also added a ZIF socket as the included IC socket doesn't last very
long. The ZIF also makes it very easy to insert and remove the
microcontroller. |
|  | I then added a wall wart power connector and an On/Off switch so that I didn't have to keep plugging and unplugging the USB. |
|  | The
biggest option I added was surface mounted LEDs. I put one on every IO
port so that I could see exactly which ports were going high and which
were not. There is an LED on RA3 even thought it doesn't work as this
is input only. As you can see in the next photo I also added resistors
to each... |
|  | Here
is a diagram of the bottom. If you click on the photo you can see that
I added several SMD resistors (220 ohm) so that all of the LEDs on the
top had sufficient current control. I used ribbon cable to attach the
ZIF socket, and you can see some loose wires for the buzzer. I covered
the power connection with liquid tape to keep it from shorting. |
|  | And lastly, here is a diagram of the entire thing (click on it to see a larger photo.) |
