A bear's phone
A downloadable installation
A Raspberry Pi interactive art project.
Requires Raspberry Pi B+, novelty bear phone.
To build a compatible device: Connect a 4x3 keypad matrix to GPIO pins 18,23,24,25 (row) and 4,17,22 (column). Connect handset hook switch to GPIO 11 and ground. Connect red/yellow wires from handset plug to TS (headphone jack) signal and black/green wires to TS ground.
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