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    Create a Pi Pico USB camera trigger

    Jan 04, 2024 4 minutes

    YOU’LL NEED

    • Pi Pico
    • PIR sensor (obstacle sensor)
    • Breadboard
    • Jumper wires to connect Pico to PIR
    • Android device
    • Pico-to-Android cable
    • Code: tinyurl. com/APC528USB

    We’ve all got a spare smartphone lurking in a drawer. Some of these devices will gather dust and then get recycled. But what if we could reuse them?

    In this project, we’re reusing an old phone with a Raspberry Pi Pico-powered camera trigger. Using a PIR (passive infrared) sensor, we will detect movement and use that to trigger the camera to take a photo. The Pi Pico is running CircuitPython and is acting as an emulated USB keyboard. Trigger the sensor, and the ‘keyboard’ presses Enter and takes a photo.

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