WBUS-DIP68 reference ==================== .. image:: https://store.micropython.org/media/products/WBUS_DIP68_ds1.jpg :alt: WBUS-DIP68 :width: 700px For the schematics see: `WBUS_DIP68_schematics.pdf `_ For powering options please see the guidelines for the PYBD itself. Note that the A3V3 pin is an output reference voltage only. Tile headers ------------ There are four tile headers on the top of the WBUS-DIP68. They are all connected together to the X pins of the PYBD, and the corresponding I2C and SPI buses are:: i2c = machine.I2C('X') spi = machine.SPI('X')