6 projects
Wearables & Portable
Smartwatches, badges, fitness devices, handheld consoles, and pocket tools.
Wearables & Portable by Board
Illustration
ESP32
An open-source smartwatch with a 1.54in e-paper screen and ESP32, hackable watch faces in Arduino.
Beginner·Under $15·Code
2 parts listed
Illustration
ESP32
An LVGL-based smartwatch firmware for the ESP32 LilyGO T-Watch with apps, BLE notifications and Wi-Fi.
Intermediate·Cost varies·Code
1 part listed
Illustration
ESP32
Open firmware that makes cheap LoRa boards into an off-grid encrypted text mesh, paired with your phone.
Beginner·Cost varies·Code
4 parts listed
Illustration
NRF52NRF52832
The community FreeRTOS firmware that turns the $30 PineTime (nRF52832) into a fully open smartwatch.
Beginner·Cost varies·Code
1 part listed
Illustration
NRF52NRF52840
An open Pro Micro-shaped nRF52840 board that lets you build wireless ZMK/QMK keyboards.
Intermediate·Cost varies·Code
2 parts listed
Illustration
NRF52NRF52840
Zephyr firmware that turns an nRF52840 into an Apple Find My network accessory using OpenHaystack.
Intermediate·Under $15·Code
2 parts listed