Arduino · AVR
Arduino Nano
The Uno's brain on a breadboard-friendly strip. Clones cost about $5, which is why it is in so many hobby builds.
No wireless5 V logicBreadboard
Typical price
$24.90
Clones from about $5
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Specifications
| Maker | Arduino |
|---|---|
| Chip | ATmega328P |
| CPU | 8-bit AVR |
| Clock speed | 16 MHz |
| Wi-Fi | None |
| Bluetooth | None |
| Zigbee / Thread radio | No |
| GPIO pins | 22 usable |
| ADC | 8 channels, 10-bit |
| DAC | None |
| Flash | 32 KB |
| RAM | 2 KB |
| Logic level | 5 V |
| Power input | 7–12V VIN / 5V USB |
| Deep sleep (typ.) | ~19 mA |
| Active current (typ.) | ~20 mA |
| Form factor | Breadboard |
| USB | Mini-USB (FTDI / CH340) |
| Programming | Arduino C++ |
| Released | 2008 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Breadboard-friendly Uno that costs $5 as a clone
- Same huge Arduino library support
- 8 analog inputs (two are analog-only)
Cons
- Tiny memory and slow CPU
- Older mini-USB connector on most boards
- Cheap clones need a CH340 driver
Best use cases
- 01Compact robots and sensor boxes
- 02Permanent projects that need 5 V
- 03Learning on a budget
- 04Retrofitting older Arduino sketches
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