Arduino Micro has some extra leds that it is tricky to programme. Like almost all Arduinos, has a built-in led – the green one on the left in the photo. And it has a pair of yellow leds – called TX ...

There are easy ways of getting more I/O pins for any project; shift registers, I2C expanders, or ADCs will give you plenty of pins for whatever project you have in mind. All these require extra ...

Leave it to Adafruit to really help a product deliver on its DIY promise. Those pins on the Raspberry Pi taunted us from the moment we laid our hands on it, and not just cause we weren't sure what to ...