KB027: Arduino UNO Boards

KEY TAKE AWAY POINTS:

Arduino UNO R3:
- MCU: ATmega328P, 16 MHz, 2KB SRAM, 32KB FLASH, 1KB EEPROM
- LED_BUILTIN: 13
Arduino UNO WiFi Rev2:
- MCU: ATmega4809, 16 MHz, 6KB SRAM, 48KB flash, 256 bytes EEPROM
- LED_BUILTIN: 25
- WiFi, Bluetooth, IMU

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Arduino UNO R3

Official doc: https://docs.arduino.cc/hardware/uno-rev3/

- MCU: ATmega328P, 16 MHz, 2KB SRAM, 32KB FLASH, 1KB EEPROM
- LED_BUILTIN: 13

Arduino UNO WiFi Rev2

Official doc: https://docs.arduino.cc/hardware/uno-wifi-rev2/

- MCU: ATmega4809, 16 MHz, 6KB SRAM, 48KB flash, 256 bytes EEPROM
- LED_BUILTIN: 25
- WiFi, Bluetooth, IMU

Micro:bit v2

Official doc: https://tech.microbit.org/hardware/

- MCU: Nordic nRF52833, 64MHz, RAM 128KB, Flash ROM 512KB
- Lots of builtin sensors

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