Adafruit QT Py RP2040
The Adafruit QT Py RP2040 is a tiny development board based on the Raspberry Pi RP2040 microcontroller.
Interfaces
| Interface | Hardware Supported | TinyGo Support |
|---|---|---|
| GPIO | YES | YES |
| UART | YES | YES |
| SPI | YES | YES |
| I2C | YES | YES |
| ADC | YES | YES |
| PWM | YES | YES |
| USBDevice | YES | YES |
Pins
| Pin | Hardware pin | Alternative names | PWM |
|---|---|---|---|
SDA |
GPIO24 |
I2C0_SDA_PIN, SDA_PIN, SPI1_SDI_PIN |
PWM4 (channel A) |
SCL |
GPIO25 |
I2C0_SCL_PIN, SCL_PIN, SPI1_CS |
PWM4 (channel B) |
TX |
GPIO20 |
UART1_TX_PIN |
PWM2 (channel A) |
MO |
GPIO3 |
MOSI, SPI0_SDO_PIN |
PWM1 (channel B) |
MI |
GPIO4 |
MISO, SPI0_SDI_PIN |
PWM2 (channel A) |
SCK |
GPIO6 |
SPI0_SCK_PIN |
PWM3 (channel A) |
RX |
GPIO5 |
SPI0_CS, UART1_RX_PIN |
PWM2 (channel B) |
QT_SCL1 |
GPIO23 |
I2C1_QT_SCL_PIN |
PWM3 (channel B) |
QT_SDA1 |
GPIO22 |
I2C1_QT_SDA_PIN |
PWM3 (channel A) |
A0 |
GPIO29 |
UART0_RX_PIN, UART_RX_PIN, ADC3 |
PWM6 (channel B) |
A1 |
GPIO28 |
UART0_TX_PIN, UART_TX_PIN, ADC2 |
PWM6 (channel A) |
A2 |
GPIO27 |
I2C1_SCL_PIN, SPI1_SDO_PIN, ADC1 |
PWM5 (channel B) |
A3 |
GPIO26 |
I2C1_SDA_PIN, SPI1_SCK_PIN, ADC0 |
PWM5 (channel A) |
NEOPIXEL |
GPIO12 |
WS2812 |
PWM6 (channel A) |
NEOPIXEL_POWER |
GPIO11 |
PWM5 (channel B) |
Machine Package Docs
Documentation for the machine package for the Adafruit QT Py RP2040
Flashing
UF2
The QT Py RP2040 comes with the UF2 bootloader already installed.
CLI Flashing
-
Flash your TinyGo program to the board using this command:
tinygo flash -target=qtpy-rp2040 [PATH TO YOUR PROGRAM] -
The QT Py RP2040 board should restart and then begin running your program.
Troubleshooting
Any troubleshooting tips go here.
Notes
To use the Qwiic/StemmaQT port on this board with I2C drivers you’ll need to configure the I2C1 device:
i2c := machine.I2C1
i2c.Configure(machine.I2CConfig{
SCL: machine.I2C1_QT_SCL_PIN,
SDA: machine.I2C1_QT_SDA_PIN,
})
You can use the USB port to the QT Py RP2040 as a serial port.
TinyGo has support for the RP2040’s on-board Programmable Input/Output (PIO) block.
For more informantion, see https://github.com/tinygo-org/pio