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title: "2.1" Smartwatch Kit" description: "The same labs on a bigger 360x360 round GC9B72 display. A copy of this kit is also the demo kit at The Thinking Spot." image: kits/robot-faces-sw-gc9b72/robot-faces-sw-gc9b72.jpg

2.1" Smartwatch Kit

2.1" Smartwatch Kit

The same labs on a bigger 360x360 round GC9B72 display. A copy of this kit is also the demo kit at The Thinking Spot.

Also published in Thinking Spot Demos: https://dmccreary.github.io/thinking-spot-demos/kits/sw-gc9b72/

Source book: Robot Faces
Kit page: https://dmccreary.github.io/robot-faces/kits/sw-gc9b72/
Printable one-pager: robot-faces-sw-gc9b72-one-pager.html

Features

  • Uses the GC9A01 Round TFT
  • Uses the GC9B72 Smartwatch Display
  • Uses the Momentary Push Buttons
  • Uses the Raspberry Pi Pico RP2040
  • Uses the SSD1306 128×64 OLED

Benefits

  • Free, open lessons: the Robot Faces 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 $10 with the $6.12 AliExpress display, or about $26 with an eBay display (about $22), plus a Pico about $4.

Parts

  • Raspberry Pi Pico ($4) — Microcontroller
  • GC9A01 Round TFT ($3.19) — Display
  • GC9B72 Smartwatch Display ($5.39) — Display
  • Momentary Push Buttons — Input button / switch
  • SSD1306 128×64 OLED — Display
  • 830-Point Breadboard ($1.10) — Breadboard
  • Micro-USB Data Cable ($2.50) — Power and programming cable