QT PY rp2040

[bsmith221]

Any way to get a digital pin out of the QT PY rp2040?

Trying to connect an w5500 ethernet board.

[Franklin97355]

What else do you want to connect?

[bsmith221]

I am looking to use just a simple temperature/humidity sensor (Adafruit AHT20) or possibly a photocell (Adafruit ALS-PT19). I believe either one only needs one analog pin, power and ground.

[Franklin97355]

The QT PY has a i2c port and the AHT20 is i2c so it just plugs into the socket. no additional pin is needed.

[bsmith221]

This question is more about the network board. I need the chip select reset for the board. the itsybitsy rp2040 uses the D10 pin digitalio.DigitalInOut(board.D10), but there is not a d10 on the qt py. Any pin I can run with digitalInout on the qt?

[bsmith221]

Ok ... after better reading of the pinout information ... it was right there all along!

Digital Pins
These are the digital I/O pins. They all have multiple capabilities.

SDA/D4 - I2C0 SDA, and digital I/O pin 4. It is also UART1 TX and PWM4 A.
SCL/D5 - I2C0 SCL, and digital I/O pin 5. It is also UART1 RX and PWM4 B.
SCK/D8 - The main SPI0 SCK and digital I/O pin 8. It is also I2C1 SDA and PWM3 A.
MI/D9 - The main SPI0 MISO and digital I/O pin 9. It is also UART1 TX, I2C0 SDA and PWM2 A.
MO/D10 - The main SPI0 MOSI and digital I/O pin 10. It is also I2C1 SCL and PWM1 B.

By using the SDA as the digital cs, it works perfectly!