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The Differences Between Single-Board Computers vs. Microcontrollers

Blog Banner displaying a single board computer vs a microcontroller
Blog Banner displaying a single board computer vs a microcontroller

This blog will tell you all you need to know about single-board computers vs microcontrollers. If you’ve heard of CPUs, you’ll likely have come across single-board computers and microcontrollers. But, although you may have had some experience with them, do you know what the key differences and similarities between the two are?

Depending on your project, you’ll need one or the other, so understanding what sets them apart from each other is crucial. Picking the wrong one could cause your project to go wrong or mean delays while you get your hands on the right piece.

Understanding the differences

Before we dive into the world of single-board computers and microcontrollers, let’s explore a CPU, since this is where all processors begin.

Essentially, a CPU (or central processing unit) is the core component in a computing unit. Its purpose is to process and execute instructions. Constantly receiving some form of input from the user or any active programs, it runs the operating system and applications.

As a core piece of any computer development project, understanding the ins and outs of how a CPU works is important.

Single Board Computer Raspberry PiMicrocontroller Arduuino

What is a microcontroller?

A microcontroller unit (or MCU) is an embedded system that incorporates an entire computer into a single chip. Under the hood of this powerful chip are a processor, memory, storage and input and output pins.

Used for controlling other portions of an electronic system, they take inputs from the device they’re controlling and retain this control by sending signals to different parts of the device. They usually run a single program and are dedicated to that task alone – a key difference when compared to a single-board computer.

What is a microcontroller

Among some of the most popular microcontrollers is Arduino.

What is a single-board computer?

A single-board computer (or SBC) is a small computing device that boasts all the elements of a complete computer within one circuit board. Powerful, low cost, self-contained and simple, an SBC can be effortlessly connected to other hardware if you deem it necessary for your project and/or application.

It essentially works just like a microcontroller but does even more! It can process a signal, communicate wirelessly and be applied to a number of applications and artificial intelligence projects, all while transmitting data.

What is a single-board computer

Among some of the most popular single-board computers is Raspberry Pi.

The benefits of a single-board computer

There are a number of benefits of single-board computers:

  • They come in a wide variety of different capacities.
  • Because they’re very small, they can easily be embedded into devices or applications where space is limited.
  • SBCs are also incredibly efficient, giving them an edge where power-saving is concerned.
  • Thanks to the fact they’re self-contained, they’re extremely reliable under a variety of environmental conditions.

The benefits of a microcontroller

Just like the single-board computer, there are also benefits to using a microcontroller in your application:

  • Although challenging, a microcontroller can be reprogrammed, meaning it’s reusable.
  • Whether you’re prototyping something or want to move it over to another project, you’ll be able to.
  • Another key benefit is that they’re cost-effective. Because they can be produced at lower costs than their counterparts, they are not as expensive for users.
  • Because they can be repurposed, you’ll get a longer lifespan.

What projects can microcontrollers be applied to?

If you’re wondering “where are microcontrollers used?” or “what is a single-board computer used for?”, we’ve pulled together some of our favourite projects they can be used in.

AI Colour Sorter: If you’ve had some experience creating different applications, why not give our robot colour sorter a try. Capable of identifying and sorting random coloured sweets into a container of the same colour, it’s a fun project that showcases some pretty cool engineering and technology.



Sort your sweets by colour using AI

OpenWeather IoT Forecaster: Using WiFi, LED indicators and audible touch feedback, this small but intricate device is perfect for showing off to your friends and family. Able to display the latest forecast for your area as well as the indoor temperature, why not try building your own piece of home technology.



Realise your next SMART device for IoT

PC Webcam: Using the Raspberry Pi, you can easily replace or add a new camera to your existing laptop or PC. Learn how to make a PC webcam with Raspberry Pi with this easy project. All you’ll need to do is configure your Pi to make its camera stream available!



Using IP Camera Adapter with your Pi

CCTV System: Have you ever wanted to see what your dog gets up to during the day or keep an eye out for any parcels that might be delivered? With an endless number of applications for live video feeds, why not try your hand at building your own CCTV camera with Raspberry Pi? Best created with the Pi 4, this project will have you upgrading your CCTV system in no time at all.



Monitor Your Things

Are you ready to explore the power of single-board computers and microcontrollers? Discover our range of Arduino and Raspberry Pi products and jump on your next exciting project!

At OKdo, we have a wide range of development boards available, from affordable microcontroller units and single-board computers to entry-level development kits and AI technology. For even more projects or to explore our free resources, head to our Projects Hub.

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