Essential tierVerified specs
Arduino Uno R3
The reference microcontroller board for learning electronics and embedded projects.
$27
Estimated price — not live pricing
Specifications
- Microcontroller
- ATmega328P
- Clock Speed
- 16 MHz
- Flash Memory
- 32 KB
- SRAM
- 2 KB
- I/O Pins
- 14 digital, 6 analog
Best uses
SchoolPrototypingEmbedded
Strengths
- Enormous library and tutorial ecosystem
- Simple enough for a first embedded project
- Extremely well documented
Limitations
- Not a general-purpose computer — no OS, no networking built in
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