Class Hierarchy

This inheritance list is sorted roughly, but not completely, alphabetically:

Carduino::HardwareI2C
CPhyduinoWire	I2C controller or peripheral on one RP2040 I2C peripheral; sketches use Wire
Carduino::HardwareSerial
CSerialUARTClass	Serial port on one RP2040 UART; sketches use Serial1 and Serial2
CSerialUSBClass	Serial port over the board's USB connection; sketches use Serial
Carduino::HardwareSPI
CPhyduinoSPI	SPI controller on one RP2040 SPI peripheral; sketches use SPI
Cstusb4500::Profile	One sink profile (PDO): a voltage the board accepts and the current it draws
CRP2040Class	The second core and the chip: rp2040
CRP2040FifoClass	Passes 32-bit values between the two cores: rp2040.fifo