microcontrollers
ChronoWatch X2040: An RP2040 Smartwatch That Just Tells Time
An RP2040 and a Waveshare round touchscreen become a distraction-free smartwatch, coded in C on the Pico SDK with custom touch handling and swappable…
diy projects
This DIY STM32L4 Smartwatch Puts Every Sensor in Your Control
A maker built an open-source STM32L4 smartwatch with a six-axis IMU, BLE, and USB-C mass storage, then released every line of firmware to fork.