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Portable Smartwatch Kits

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Options for making the breadboard smartwatch kits truly wearable. The best fit is the Waveshare ESP32-S3-Touch-LCD-1.28 with onboard LiPo charging.

Source book: Clocks and Watches
Kit page: https://dmccreary.github.io/clocks-and-watches/kits/portable-watch-kits/
Printable one-pager: portable-watch-kits-one-pager.html

Features

  • Uses the ESP32 Boards
  • Uses the GC9A01 Round TFT
  • Uses the Raspberry Pi Pico RP2040

Benefits

  • Free, open lessons: the Clocks and Watches textbook has the kit page, wiring, and MicroPython code.
  • Classroom friendly: built on a solderless breadboard or no-solder connectors.
  • Instant feedback: students see their code's results on lights or a display.
  • Budget: about \(15–\)20 plus a battery (recommended option).

Parts

  • Raspberry Pi Pico ($4) — Microcontroller
  • GC9A01 Round TFT ($3.19) — Display
  • 830-Point Breadboard ($1.10) — Breadboard
  • Micro-USB Data Cable ($2.50) — Power and programming cable