2026-07-30-chronowatch-x2040-e42ec14b4c
Custom smartwatch built with RP2040 and Pico SDK
Raspberry Pi News
EDITOR BRIEF
A maker built a simple round smartwatch focused on telling time, with multiple watch faces and no distracting notification features. The project uses a Waveshare round touch LCD with an RP2040 microcontroller, a 3.7V battery, a 3D-printed case, and Apple Watch strap support. The builder used the Pico SDK, wrote custom touch functions, and added features like brightness control, a stopwatch, rotation, and sleep mode.
INSIGHTS
This is a practical beginner project for learning embedded programming, C, and hardware integration. It also shows how using an existing module can reduce hardware complexity and let you focus on software features.
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