While the Raspberry Pi has very good support for an I2C bus, a lot of very cool chips – including the in system programmer for just about every ATtiny and ATmega microcontroller – use an SPI bus.

With just a Raspberry Pi, a few sensors, and some Python code, you can create a powerful and budget-friendly data logger. From tracking temperature and humidity to monitoring pressure or light levels, ...

For better or worse, pets often serve as inspiration and test subjects for hardware hacks: smarten up that hamster wheel, tweet the squirrel hunting adventures from a dog’s point of view, or automate ...