Update 'Microcontroller Basics'

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Levi Pearson 2022-03-10 09:12:55 +00:00
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# Microcontroller Components
![STM32F103 Internals](https://cgit.pinealservo.com/BluePill_Rust/resources/raw/branch/master/BluePillArch.png)
Simplified Blue Pill Architecture
## CPU
The STM32F103 microcontroller uses an ARM Cortex-M3 CPU. It plays a similar role to the CPU in a PC, but is much smaller, simpler, and more energy-efficient.