User Manual

29
Halt Pin
By default, GPIO-4 pin is the pin that receives signal to shutdown your Raspberry Pi.
If you want to change that, you will need to make some hackings again (at your own
risk). You can remove the resistor R26 (0 Ohm) and then connect the pad with “HALT”
label to the GPIO pin you want.
You will also need to modify the software a little bit to use different GPIO pins. More
details here: http://www.uugear.com/portfolio/change-the-pin-that-used-by-witty-pi/
Testing Pads on the Back
On the back of Witty Pi Mini board, there are 6 testing pads, and each of them has a
label beside.
These testing pads were for product testing, but you can solder wires on them and
them for extension and integration purpose.