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LED Display Clock

Kit photo needed

We don't have a photo of the assembled kit yet. The image below shows a key part.

Key part: 4-digit LED display module

Key part: 4-digit LED display module

A clock using the TM1637 4-digit LED display module.

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

Features

  • Lab: A Simple Clock with the TM1637 LED Display
  • Lab: Programming Reference for the TM1637 Clock LED Driver
  • Lab: Shift Register Displays

Benefits

  • Free, open lessons: the Clocks and Watches textbook has the kit page, wiring, and MicroPython code.
  • Ready-made curriculum: 3 additional lab pages walk students through the build step by step.
  • Wireless-ready: the Pico W option adds Wi-Fi for time sync and web projects.
  • Instant feedback: students see their code's results on lights or a display.
  • Budget: under $10.

Parts

  • Raspberry Pi Pico ($4) — Microcontroller
  • 74HC595 Shift Register — Output expander
  • Piezo Buzzer / Speaker — Sound output
  • TM1637 4-Digit LED — Display
  • 830-Point Breadboard ($1.10) — Breadboard
  • Micro-USB Data Cable ($2.50) — Power and programming cable