Stopwatch
A two-button stopwatch (Start/Stop and Reset) on an OLED display.
Stopwatch
Key Features
- Uses the Raspberry Pi Pico RP2040
- Uses the SSD1306 128×64 OLED
Key Benefits
- Free, open lessons. The Clocks and Watches textbook has the kit page, wiring, and MicroPython code.
- Try before you build. An interactive MicroSim on the kit page runs in the browser.
- Instant feedback. Students see their code's results on lights or a display.
- Budget. About $14 (0.96" OLED about $4.40, two buttons about $0.50; Pico $4, breadboard $2, wires $1, USB cable $2).
Parts
| Part (price) | Role |
| Raspberry Pi Pico ($4) | Microcontroller |
| SSD1306 128×64 OLED | Display |
| 830-Point Breadboard ($1.10) | Breadboard |
| Micro-USB Data Cable ($2.50) | Power and programming cable |
Microcontroller listed first. Prices shown only where known; see the source book for quantities, wiring, and current prices.
About this kit: From the Clocks and Watches collection.
Source: Clocks and Watches
Source: Clocks and Watches