Watch the video after the jump to learn more about the EnergyShield Arduino rechargeable battery project and see it in action. ... all contained in Arduino Shield Form-Factor (Uno and Leo/R3).

A Swedish software engineer — Johan Kanflo — has made a wireless Arduino clone called AADuino, which is the size of an AA battery. Kanflo explains that the AADuino has an onboard RF module ...

Features only on Uno R4 WiFi (right) and not on Uno Minima. Wi-Fi 2.4GHz 802.11b/g/n up to 150Mbit/s Bluetooth 5 Built-in antenna 12 x 8 LED matrix Qwicc-style connector for 3V3 I 2 C – additional ...

DIY Arduino EV Charger. The Arduino Uno is a versatile microcontroller that serves as the brain of your charging station. To interface with the Arduino Uno, you’ll need a custom shield that ...

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Ar… ...