A development board with a 1.28" round IPS LCD, USB-C, a LiPo battery connector, and a built-in accelerometer and gyroscope.

Key part: Waveshare RP2040 round LCD board (kit photo still needed)
| Part (price) | Role |
| Waveshare RP2040-LCD-1.28 | Microcontroller board with built-in round 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.