ScratchStang

Microcomputers

One of various Raspberry Pi models.

Want to easily dabble in connecting code to hardware without dropping too much cash? Microcomputers are up to the task; they're portable, cheap and useful.

A microcomputer is a small, relatively inexpensive computer with a microprocessor as its central processing unit (CPU). It includes a microprocessor, memory, and minimal input/output (I/O) circuitry mounted on a single printed circuit board.

 —Wikipedia

Two popular types of microcomputers are the Raspberry Pi and Micro:bits.


As shown above, a Raspberry Pi has numerous means of connection to another device to code on or interact with. Some models, like the Raspberry Pi 3, have a small touchscreen and can run operating systems such as Linux. The cheapest version, Raspberry Pi Zero, sells for an affordable $5.

Learn more about the Raspberry Pi on their official website.


Today I got the opportunity to listen to a guest speaker from Microsoft to learn about Micro:bits and how to code them. They can be used for a variety of activities thanks to their numerous sensors including a thermometer, moisture detector, accelerometer, and compass. It also features 25 LED lights in a 5x5 grid and two buttons.
In the UK, every year seven student is given a Micro:bit from Microsoft to learn to code.
You can buy a Micro:bit in the UK for roughly £13 (excluding batteries). Micro:bits will be sold internationally soon.

Learn more about the Micro:bit on this BBC website.
Check out the Micro:bit on their official website.
Code with a Micro:bit simulator here.

Both types of microcomputers can do even more with USB plugs, USB keyboards, and other extra hardware.

What do you think about microcomputers? Share your thoughts in the comments!

—Stang