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.
Pinout
- VINVINType · Power
- GNDGND1Type · Ground
- GNDGND2Type · Ground
- 5V5VType · Power
- 3.3V3V3Type · Power
- RESETRESETType · Control
- IOREFIOREFType · Power
- A0A0Type · Analog
- A1A1Type · Analog
- A2A2Type · Analog
- A3A3Type · Analog
- A4A4Type · Analog
- A5A5Type · Analog
- D0RXD0Type · GPIO, UART
- D1TXD1Type · GPIO, UART
- D2SDAD2Type · GPIO, I2C
- ~D3SCLD3Type · I2C, Signal
- D4D4Type · GPIO
- ~D5D5Type · Signal
- ~D6D6Type · Signal
- D7D7Type · GPIO
- D8D8Type · GPIO
- ~D9D9Type · Signal
- ~D10D10Type · Signal
- ~D11D11Type · Signal
- D12D12Type · GPIO
- ~D13D13Type · Signal
| Pin | Position | Type |
|---|---|---|
| VIN | VIN | Power |
| GND | GND1 | Ground |
| GND | GND2 | Ground |
| 5V | 5V | Power |
| 3.3V | 3V3 | Power |
| RESET | RESET | Control |
| IOREF | IOREF | Power |
| A0 | A0 | Analog |
| A1 | A1 | Analog |
| A2 | A2 | Analog |
| A3 | A3 | Analog |
| A4 | A4 | Analog |
| A5 | A5 | Analog |
| D0RX | D0 | GPIO, UART |
| D1TX | D1 | GPIO, UART |
| D2SDA | D2 | GPIO, I2C |
| ~D3SCL | D3 | I2C, Signal |
| D4 | D4 | GPIO |
| ~D5 | D5 | Signal |
| ~D6 | D6 | Signal |
| D7 | D7 | GPIO |
| D8 | D8 | GPIO |
| ~D9 | D9 | Signal |
| ~D10 | D10 | Signal |
| ~D11 | D11 | Signal |
| D12 | D12 | GPIO |
| ~D13 | D13 | Signal |
Pin details
27 connections- VINVINPower
- GNDGND1Ground
- GNDGND2Ground
- 5V5VPower
- 3.3V3V3Power
- RESETRESETControl
- IOREFIOREFPower
- A0A0Analog
- A1A1Analog
- A2A2Analog
- A3A3Analog
- A4A4Analog
- A5A5Analog
- D0RXD0GPIO, UART
- D1TXD1GPIO, UART
- D2SDAD2GPIO, I2C
- ~D3SCLD3I2C, Signal
- D4D4GPIO
- ~D5D5Signal
- ~D6D6Signal
- D7D7GPIO
- D8D8GPIO
- ~D9D9Signal
- ~D10D10Signal
- ~D11D11Signal
- D12D12GPIO
- ~D13D13Signal
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