A single system-on-a-chip that includes a processor core, memory, and programmable input/output peripherals. Unlike a general-purpose microprocessor that requires external RAM and storage, this device is self-contained and optimized for dedicated control tasks, reading sensor inputs and driving actuators in everything from microwave ovens to automotive engine control units.
We need a basic 8-bit microcontroller with at least three PWM channels to handle the motor speed control.
Also heard as
- MCU
Do not mix it up with
- Microprocessor: A microprocessor is just the processing core and needs external memory and I/O, while a microcontroller includes memory and I/O on the same chip.
Related terms
Microprocessor
An integrated circuit that contains all the functions of a central processing unit.
SoC
An integrated circuit that combines all necessary components of a computer or electronic system onto a single chip.
PWM
Pulse-width modulation is a technique for controlling average power delivery by rapidly switching a signal on and off.
Clock
A continuous square wave signal that synchronizes the timing of digital circuits.