BoardPilotArduino Uno R3 vs Arduino Nano
The two boards side by side, from the same board files BoardPilot uses to check your wiring.
| Arduino Uno R3 | Arduino Nano | |
|---|---|---|
| Chip | ATmega328P | ATmega328P |
| Processor | 8-bit AVR ATmega328P at 16 MHz, 2 KB SRAM, 32 KB flash, 1 KB EEPROM | 8-bit AVR ATmega328P at 16 MHz, 2 KB SRAM, 32 KB flash, 1 KB EEPROM |
| Logic level | 5 V | 5 V |
| Header pins | 29 | 30 |
| GPIO pins | 20 | 22 |
| Analog inputs | 6 | 8 |
| Default I2C | SDA A4, SCL A5 | SDA A4, SCL A5 |
| Default SPI | MOSI ~11, MISO 12, SCK 13 | MOSI D11, MISO D12, SCK D13 |
| 5 V tolerant inputs | yes | yes |
| Flashing tool | avrdude | avrdude |
| Arduino board | arduino:avr:uno | arduino:avr:nano |
Which one to pick?
- Pick the Arduino Nano if you need more analog inputs (8).