Arduino Leonardo
ATmega32U4-based board with 20 digital I/O pins (7 PWM), 12 analog inputs, 16 MHz, native USB (keyboard/mouse/CDC), and Micro USB connector. 5 V operating voltage; 32 KB flash (4 KB bootloader), 2.5 KB SRAM.
ATmega32U4-based board with 20 digital I/O pins (7 PWM), 12 analog inputs, 16 MHz, native USB (keyboard/mouse/CDC), and Micro USB connector. 5 V operating voltage; 32 KB flash (4 KB bootloader), 2.5 KB SRAM.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VIN | VIN | power | ||
| GND | GND1 | ground | ||
| GND | GND2 | ground | ||
| 5V | 5V | power | ||
| 3.3V | 3V3 | power | ||
| RESET | RESET | control | ||
| IOREF | IOREF | power | ||
| A0 | A0 | signal | ||
| A1 | A1 | signal | ||
| A2 | A2 | signal | ||
| A3 | A3 | signal | ||
| A4 | A4 | signal | ||
| A5 | A5 | signal | ||
| D0/RX | D0 | signal | ||
| D1/TX | D1 | signal | ||
| D2/SDA | D2 | signal | ||
| ~D3/SCL | D3 | signal | ||
| D4 | D4 | signal | ||
| ~D5 | D5 | signal | ||
| ~D6 | D6 | signal | ||
| D7 | D7 | signal | ||
| D8 | D8 | signal | ||
| ~D9 | D9 | signal | ||
| ~D10 | D10 | signal | ||
| ~D11 | D11 | signal | ||
| D12 | D12 | signal | ||
| ~D13 | D13 | signal |
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