The Ollee Watch features an ARM Cortex-M4/M0+ low-power processor with support for Bluetooth Low Energy and a programmable NTAG213 NFC tag (although this is said to only be compatible with the F-91W ...

Learn how to create the smallest ESP32 drone! From design to flight, this DIY guide is perfect for beginners and tech ...

Learn how to turn old appliances into smart, Wi-Fi-enabled devices with ESP8266 and ESPHome. DIY automation made simple for your home.

While we often get a detailed backstory of the projects we cover here at Hackaday, sometimes the genesis of a build is a bit ...

Drums! You hit them, and they vibrate. It’s kind of fun. Piezoelectric elements can create electric current when they vibrate. [Will Dana] put two and two together to try and charge his ...