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Microcontrollers - the tiny brains
~5 min read
A microcontroller is a small, low-power computer on a single chip. Popular choices:
- ESP32: Wi-Fi + Bluetooth built in, ~$5, very capable.
- Arduino Uno: classic learner's board, big ecosystem.
- Raspberry Pi Pico: $4, dual-core, programmable in MicroPython.
- Raspberry Pi 5: a full Linux computer the size of a credit card.