At the fundamental level, a microcontroller is a just tiny computer. Being a "tiny computer" doesn't really tell us much, though. So let's go deeper. Many people associate microcontrollers with Arduino. But it's important to point out that Arduino is not a microcontroller. Arduino is a complete platform which spans across software and hardware.
Hardware Fundamentals: what exactly is a microcontroller? 
Added 2 years ago by Édouard Urcades
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Hardware Fundamentals: what exactly is a microcontroller? 
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At the fundamental level, a microcontroller is a just tiny computer. Being a "tiny computer" doesn't really tell us much, though. So let's go deeper. Many people associate microcontrollers with Arduino. But it's important to point out that Arduino is not a microcontroller. Arduino is a complete platform which spans across software and hardware.
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