SparkFun Qwiic Pro Micro - USB-C
Miniaturized Arduino-compatible board (ATmega32U4) with USB-C, Qwiic I2C connector, reset button, and castellated pads for direct PCB soldering. Native USB allows it to act as a HID device.
Miniaturized Arduino-compatible board (ATmega32U4) with USB-C, Qwiic I2C connector, reset button, and castellated pads for direct PCB soldering. Native USB allows it to act as a HID device.
Hardware UART transmit, digital I/O
Hardware UART receive, digital I/O
Ground
Ground
Digital I/O, external interrupt INT1
Digital I/O/PWM, external interrupt INT0
Digital I/O
Digital I/O/PWM
Digital I/O/PWM
Digital I/O, external interrupt INT6
Digital I/O
Digital I/O/PWM
Digital I/O/PWM
SPI MOSI, digital I/O
SPI MISO, digital I/O
SPI clock, digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
I2C data on Qwiic/header net
I2C clock on Qwiic/header net
Raw external supply input
Regulated board logic rail, jumper-selectable
Reset input
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| D1TXO | edge castellated/header pad | GPIO | Hardware UART transmit, digital I/O | logic I/O |
| D0RXI | edge castellated/header pad | GPIO | Hardware UART receive, digital I/O | logic I/O |
| GND | edge castellated/header pad | Ground | Ground | 0V |
| GND | edge castellated/header pad | Ground | Ground | 0V |
| D2 | edge castellated/header pad | GPIO | Digital I/O, external interrupt INT1 | logic I/O |
| D3 | edge castellated/header pad | GPIO | Digital I/O/PWM, external interrupt INT0 | logic I/O |
| D4 | edge castellated/header pad | GPIO | Digital I/O | logic I/O |
| D5 | edge castellated/header pad | GPIO | Digital I/O/PWM | logic I/O |
| D6 | edge castellated/header pad | GPIO | Digital I/O/PWM | logic I/O |
| D7 | edge castellated/header pad | GPIO | Digital I/O, external interrupt INT6 | logic I/O |
| D8 | edge castellated/header pad | GPIO | Digital I/O | logic I/O |
| D9 | edge castellated/header pad | GPIO | Digital I/O/PWM | logic I/O |
| D10 | edge castellated/header pad | GPIO | Digital I/O/PWM | logic I/O |
| D16MOSI | edge castellated/header pad | GPIO, SPI | SPI MOSI, digital I/O | logic I/O |
| D14MISO | edge castellated/header pad | GPIO, SPI | SPI MISO, digital I/O | logic I/O |
| D15SCK | edge castellated/header pad | GPIO, SPI | SPI clock, digital I/O | logic I/O |
| A0 | edge castellated/header pad | Analog | Analogue input, also digital I/O | logic I/O |
| A1 | edge castellated/header pad | Analog | Analogue input, also digital I/O | logic I/O |
| A2 | edge castellated/header pad | Analog | Analogue input, also digital I/O | logic I/O |
| A3 | edge castellated/header pad | Analog | Analogue input, also digital I/O | logic I/O |
| D2SDA | Qwiic connector and board pad | GPIO, I2C | I2C data on Qwiic/header net | logic I/O |
| D3SCL | Qwiic connector and board pad | GPIO, I2C | I2C clock on Qwiic/header net | logic I/O |
| RAW | edge castellated/header pad | Power | Raw external supply input | up to 6V external input |
| VCC5V or 3.3V | edge castellated/header pad | Power | Regulated board logic rail, jumper-selectable | 5V default or 3.3V |
| RST | edge castellated/header pad | Control | Reset input | active low reset |
Hardware UART transmit, digital I/O
Hardware UART receive, digital I/O
Ground
Ground
Digital I/O, external interrupt INT1
Digital I/O/PWM, external interrupt INT0
Digital I/O
Digital I/O/PWM
Digital I/O/PWM
Digital I/O, external interrupt INT6
Digital I/O
Digital I/O/PWM
Digital I/O/PWM
SPI MOSI, digital I/O
SPI MISO, digital I/O
SPI clock, digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
Analogue input, also digital I/O
I2C data on Qwiic/header net
I2C clock on Qwiic/header net
Raw external supply input
Regulated board logic rail, jumper-selectable
Reset input
USB · 5 V · 3.3 V
Confirm the data interface matches your host board.
Module pins: GND, RAW, VCC / 5V or 3.3V, MOSI / D16, MISO / D14, SCK / D15, SDA / D2, SCL / D3. Schematik maps them to your board in the app.
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