Step 6: Installation, Testing, and Completion.

I used a USB battery which should offer plenty of run time for such a simple circuit. An artificial pumpkin, hobby knife, and hot glue did the rest.

Be very careful with your wiring as too much tugging can yank the wires out. There should be no harm done in leaving the circuit running while going through the hot glue and installation tests.

Below are two videos of the pumpkin in action:

Since there is only a passing mention of the transistor in the video, I would like to add a little here. Please keep in mind I am a total newbie to electronics, however I did manage to trigger the voice recorder via Arduino. This is what I did:<br> <br> - Select a digital pin other than 13. The LED on pin 13 might prevent the transistor from saturating without a different value resistor.<br> - Place a 150 Ohm resistor between the digital pin and the base of the transistor.<br> - Tie the collector to ground<br> - Tie the emitter to the sound module.<br> - Write a short HIGH/LOW pulse to the pin to start/stop the recording.<br> <br> By the way, I was able to solder directly to the button pad by cutting the negative trace that feeds the pad. The wire wraps under the sound module via the exposed holes for protection.<br> <br> <br> <br> Big thanks to thoughtfix for sharing this wonderful idea!
Thanks for the great 'ible. I will def be referring back to this near halloween. Thanks again!!!
Hello,<br> Do you have a resistor on the base of the transistor and is this the correct way to hook up the transistor ?<br><br><br>
Can you post a clearer picture of how you soldered to the recording module so you could control it via Arduino? Thanks.
It is so creepy in the dark. I like it a lot!
Great project. Arduino has been a blast to work with for Halloween projects. Keep up the good work!

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