Teensy 4.1 Audio Guestbook Kit

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Turn an old phone into a Guestbook that people can leave personalized messages. Great for weddings, birthdays, product launches and other special events! Kit includes: Teensy 4.0 T eensy 4.x Audio Shield 3.5mm TRRS Breakout Board A Micro SD card Pin headers, both pin and socket You will need: A landline-style phone Soldering iron and solder for the pin headers Electrical tape, or terminal block for wire connections Wire cutters and strippers Software: Audacity Arduino IDE TeensyDuino SOX Original design by Playful Technology on Youtube. You can follow his build guide, with timestamped chapters, here: Make your own wedding audio guestbook - a step-by-step guide! **If you have technical issues, check this forum post from the official Teensy forums to davice. Show more