Motion Activated Halloween Pumpkin

Motion Activated Halloween Pumpkin

PCB with colorful silkscreen shaped like an halloween pumpkin, it's activated using motion sensors to detect movement nearby

When movement is detected the pumpkin will play a short sound using a piezo buzzer

It can be used a decoration for Halloween or as a prank to scare someone that gets near your stuff :)

In the attachments you will find a sample Arduino sketch (pumpkin.ino) with the correct pins already defined

The board uses an ATTiny85 microcontroller which can be programmed using the 6pin ICSP header on the pumpkin stem, power input is at the bottom. While it might work down to 3.3V I haven't tested it yet so 5V is recommended

The 2 motion sensor modules can be found cheaply if you look for SR501, HC-SR501 or similar model names. Obviously 1 is more than enough to detect movement but I used 2 of them to make them the eyes of the pumpkin!