Computers come in all shapes and sizes. Some of the smallest are known as microcontrollers (or “MCUs”). These programmable computers on a chip may look unassuming, but they offer unprecedented versatility and computer control for the price. Use MCUs to control the devices in your life, create your own scratch-built robots or interactive toys, or connect sensors to the growing “Internet of Things.” The possibilities are endless. Check out our microcontroller comparison page to see side-by-side specifications.