I have an Arduino Uno Rev 3 with a Qwiic Shield (DEV-14352) attached and was successfully able to retrieve the address of a SparkFun Triple Axis Accelerometer (SEN-14587) over Qwiic.
However, when I try to scan the I2C address of the Sparkfun Qwiic Keypad (COM-15290), the serial output shows that nothing is connected.
I used the same port and cable for both the Accelerometer and the Keypad yet only the accelerometer works.
Any idea what might cause this or how to fix it?