Adafruit Industries · structured pinout

Adafruit QT Py RP2040 pinout

Name: Adafruit QT Py RP2040 pinout with per-pin electrical limits
Creator: Xirkit

All 16 pins of the Adafruit QT Py RP2040, each mapped to the RP2040 pad it routes to, with its functions and — for 13 pins — the electrical limits from the chip datasheet. Every number cites its page and table.

16 pins documented13 with electrical limits13 gpio1 power out1 ground1 power incomplete pinout

Pin table

Adafruit QT Py RP2040 pins, functions and electrical limits

Markdown · JSON

VIH/VIL: input thresholds · VOH/VOL: output levels · IOH/IOL: output current. Values apply to the chip pad each pin routes to, under the conditions cited in the source.
Pin	Position	Kind	Chip pad	Functions	VIH	VIL	VOH	VOL	IOH	IOL	5 V tolerant	Abs max	Source
A0/D0	JP1 · JP1-1	gpio	GPIO29	ADC3, SPI1 CS, I2C0 SCL, PWM6 B, SPI1_CSn, UART0_RX, SIO, PIO0, PIO1, USB_VBUS_EN	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
A1/D1	JP1 · JP1-2	gpio	GPIO28	ADC2, SPI1 MISO, I2C1 SDA, PWM6 A, SPI1_RX, UART0_TX, I2C0_SDA, SIO, PIO0, PIO1, USB_VBUS_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
A2/D2	JP1 · JP1-3	gpio	GPIO27	ADC1, SPI1 MOSI, I2C1 SCL, PWM5 B, SPI1_TX, UART1_RTS, SIO, PIO0, PIO1, USB_OVCUR_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
A3/D3	JP1 · JP1-4	gpio	GPIO26	ADC0, SPI1 SCK, I2C1 SDA, PWM5 A, UART1_CTS, SIO, PIO0, PIO1, USB_VBUS_EN	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
SDA/D4	JP1 · JP1-5	gpio	GPIO24	I2C0 SDA, digital I/O pin 4, UART1 TX, PWM4 A, SPI1_RX, SIO, PIO0, PIO1, CLOCK_GPOUT2, USB_OVCUR_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
SCL/D5	JP1 · JP1-6	gpio	GPIO25	I2C0 SCL, digital I/O pin 5, UART1 RX, PWM4 B, SPI1_CSn, SIO, PIO0, PIO1, CLOCK_GPOUT3, USB_VBUS_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
TX/D6	JP1 · JP1-7	gpio	GPIO20	UART1 TX, I2C0 SDA, PWM2 A, SPI0_RX, SIO, PIO0, PIO1, CLOCK_GPIN0, USB_VBUS_EN	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
RX/D7	JP3 · JP3-1	gpio	GPIO5	UART1 RX, SPI0 CS, I2C0 SCL, PWM2 B, SPI0_CSn, SIO, PIO0, PIO1, USB_VBUS_EN	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
SCK/D8	JP3 · JP3-2	gpio	GPIO6	SPI0 SCK, digital I/O pin 8, I2C1 SDA, PWM3 A, UART1_CTS, SIO, PIO0, PIO1, USB_OVCUR_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
MI/D9	JP3 · JP3-3	gpio	GPIO4	SPI0 MISO, digital I/O pin 9, UART1 TX, I2C0 SDA, PWM2 A, SPI0_RX, SIO, PIO0, PIO1, USB_VBUS_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
MO/D10	JP3 · JP3-4	gpio	GPIO3	SPI0 MOSI, digital I/O pin 10, I2C1 SCL, PWM1 B, SPI0_TX, UART0_RTS, SIO, PIO0, PIO1, USB_OVCUR_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
SDA1	STEMMA QT · STEMMA QT	gpio	GPIO22	I2C1 SDA for the STEMMA QT connector, SPI0 SCK, PWM3 A, UART1_CTS, I2C1_SDA, SIO, PIO0, PIO1, CLOCK_GPIN1, USB_VBUS_DET	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
SCL1	STEMMA QT · STEMMA QT	gpio	GPIO23	I2C1 SCL for the STEMMA QT connector, SPI0 MOSI, PWM3 B, SPI0_TX, UART1_RTS, I2C1_SCL, SIO, PIO0, PIO1, CLOCK_GPOUT1, USB_VBUS_EN	2–3.6 V	-0.3–0.8 V	2.62–3.3 V	0–0.5 V	≤ 12 mA	≤ 12 mA	no	-0.5–3.8 V	RP2040 datasheet p.617 table 617_1
3V	JP3 · JP3-5	power out		power_out									p.14
GND	JP3 · JP3-6	ground		ground
5V	JP3 · JP3-7	power in		power_in									p.14

Answers from the record

Adafruit QT Py RP2040 pinout FAQ

What microcontroller does the Adafruit QT Py RP2040 use?

The Adafruit QT Py RP2040 is built around the RP2040, alongside AP2112K-3.3, WS2812B.

How many GPIO pins does the Adafruit QT Py RP2040 have?

13 GPIO pins are exposed. Xirkit documents 16 board pins, 13 of them with pin-level electrical limits.

Are the Adafruit QT Py RP2040 I/O pins 5 V tolerant?

No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2–3.6 V.

How much current can a Adafruit QT Py RP2040 GPIO pin source?

Documented output-high current per pin: ≤ 12 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.

What voltage powers the Adafruit QT Py RP2040?

Supply range 5–5 V. Power inputs: 5V.

Go deeper

Looking for something else? Browse every structured part.