sparkfun Qwiic 12-Bit ADC Hook-Up Manual page 12

However, the board also provides five labeled breakout pins. You can connect these lines to the I C bus of your
microcontroller and power pins (3.3V and GND), if it doesn't have a Qwiic connector. The ALERT/RDY pin is
broken out to use for triggered events (requires pull-up resistor).
Pin Label Pin Function
3.3V Power
Supply
GND Ground
2
SDA I C Data
Signal
2
SCL I C Clock
Signal
Annotated image of the Qwiic connectors.
Annotated image of the breakout pins.
Input/Output Notes
Input 3.3V on Qwiic system (should be stable)
Input Ground and Single-Ended Reference Voltage for ADC.
Bi-directional Bi-directional data line. Voltage should not exceed power
supply (e.g. 3.3V).
Input Master-controlled clock signal. Voltage should not exceed
power supply (e.g. 3.3V).
2