Adafruit PyPortal

The Adafruit PyPortal is a ARM board based on the Microchip ATSAMD51J20A family of SoC.

The PyPortal also has an Espressif ESP32 Wi-Fi coprocessor with TLS/SSL support built-in. PyPortal has a 3.2″ 320 x 240 color TFT with resistive touch screen. PyPortal includes: speaker, light sensor, temperature sensor, NeoPixel, microSD card slot, 8MB flash, plug-in ports for I2C and 2 analog/digital pins,

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
D0 PB13 NINA_RX, UART_RX_PIN TCC3 (channel 1), TCC0 (channel 1)
D1 PB12 NINA_TX, UART_TX_PIN TCC3 (channel 0), TCC0 (channel 0)
D2 PB22 NEOPIXEL, WS2812
D3 PA04 A1
D4 PA05 A3
D5 PB16 NINA_ACK TCC3 (channel 0), TCC0 (channel 4)
D6 PB15 NINA_GPIO0 TCC4 (channel 1), TCC0 (channel 3)
D7 PB17 NINA_RESETN TCC3 (channel 1), TCC0 (channel 5)
D8 PB14 NINA_CS TCC4 (channel 0), TCC0 (channel 2)
D9 PB04 TFT_RD
D10 PB05 TFT_DC
D11 PB06 TFT_CS
D12 PB07 TFT_TE
D13 PB23 LED
D24 PA00 TFT_RESET
D25 PB31 TFT_BACKLIGHT TCC4 (channel 1), TCC0 (channel 7)
D26 PB09 TFT_WR
D27 PB02 SDA_PIN TCC2 (channel 2)
D28 PB03 SCL_PIN TCC2 (channel 3)
D29 PA12 SPI0_SDO_PIN, NINA_SDO TCC0 (channel 6), TCC1 (channel 2)
D30 PA13 SPI0_SCK_PIN, NINA_SCK TCC0 (channel 7), TCC1 (channel 3)
D31 PA14 SPI0_SDI_PIN, NINA_SDI TCC2 (channel 0), TCC1 (channel 2)
D32 PB30 TCC4 (channel 0), TCC0 (channel 6)
D33 PA01
D34 PA16 LCD_DATA0 TCC1 (channel 0), TCC0 (channel 4)
D35 PA17 TCC1 (channel 1), TCC0 (channel 5)
D36 PA18 TCC1 (channel 2), TCC0 (channel 6)
D37 PA19 TCC1 (channel 3), TCC0 (channel 7)
D38 PA20 TCC1 (channel 4), TCC0 (channel 0)
D39 PA21 TCC1 (channel 5), TCC0 (channel 1)
D40 PA22 TCC1 (channel 6), TCC0 (channel 2)
D41 PA23 TCC1 (channel 7), TCC0 (channel 3)
D42 PB10 QSPI_SCK TCC0 (channel 4), TCC1 (channel 0)
D43 PB11 QSPI_CS TCC0 (channel 5), TCC1 (channel 1)
D44 PA08 QSPI_DATA0 TCC0 (channel 0), TCC1 (channel 4)
D45 PA09 QSPI_DATA1 TCC0 (channel 1), TCC1 (channel 5)
D46 PA10 QSPI_DATA2 TCC0 (channel 2), TCC1 (channel 6)
D47 PA11 QSPI_DATA3 TCC0 (channel 3), TCC1 (channel 7)
D50 PA02 SPK_SD, A0, AUDIO_OUT
D51 PA15 NINA_RTS TCC2 (channel 1), TCC1 (channel 3)
A2 PA07 LIGHT
A4 PB00 TOUCH_YD
A5 PB01 TOUCH_XL
A6 PA06 TOUCH_YU
A7 PB08 TOUCH_XR
USBCDC_DM_PIN PA24 TCC2 (channel 2)
USBCDC_DP_PIN PA25 TCC2 (channel 3)

Machine Package Docs

Documentation for the machine package for the Adafruit PyPortal

Flashing

UF2

The PyPortal comes with the UF2 bootloader already installed.

CLI Flashing

  • Plug your PyPortal into your computer’s USB port.

  • Flash your TinyGo program to the board using this command:

    tinygo flash -target=pyportal [PATH TO YOUR PROGRAM]
    
  • The PyPortal board should restart and then begin running your program.

Troubleshooting

If you have troubles getting your PyPortal board to receive code, try this:

  • Press the “RESET” button on the board two times to get the PyPortal board ready to receive code.
  • The PyPortal board will appear to your computer like a USB drive.
  • Now try running the command as above:
tinygo flash -target=pyportal [PATH TO YOUR PROGRAM]

Once you have updated your PyPortal board the first time, after that you should be able to flash it entirely from the command line.

Notes

You can use the USB port to the PyPortal as a serial port. UART0 refers to this connection.