Arduino enthusiasts may be interested in a new thumb-sized radio-equipped Arduino Leonardo development board created by Doug Lyon.

When the Arduino sees the pin change from high to low, it sends out a keyboard command consisting of the Windows Key and “L”, which is the keyboard shortcut for locking the computer.

The small IMUduino Arduino Leonardo powered board is currently the world’s smallest Arduino Leonardo compatible board that includes integrated wireless motion and orientation sensing technology.

For example, ATmega328P (Figure 13-2, Arduino Uno and Nano) and ATmega32U4 (Figure 10-2, Arduino Leonardo, Micro or Pro Micro) Arduinos have hysteresis built into the input side of digital IO pins (as ...

When Arduino unveiled a boatload of new products on Friday, we could have taken the easy route, posted the PR and called it a day. But, since the crew happened to be in town for Maker Faire, with ...

Timer4 on the ATmega32U4 (Arduino Leonardo, Micro, Pro Micro) is another one of Microchip/Atmel’s high-speed timers that can be fed by a PLL (phase-locked-loop) multiplied version of the 16MHz system ...

“Most powerful” Arduino ever has ARM Cortex-A8 chip, runs “full Linux” 3D printers, sensor networks, and advanced automation enabled by Arduino Tre.

The long-awaited Arduino Due just hit the market, replacing the 8-bit, 16 MHz brain of the popular Uno microcontroller prototyping platform with a 32-bit, 84 MHz processor, while augmenting inputs ...

An Arduino Leonardo is pressed into service for this hack. With its USB HID capabilities, it’s perfectly suited for custom keyboard builds.