We tested various pieces of equipment in the lab, including the oscilloscope and the multimeter. The first test was done using an oscilloscope with the QPAD. We used it to observe pin 5 on the XIAO RP2040, which is connected to the SDA pin on the OLED module. As expected, the oscilloscope showed voltage changes corresponding to what was displayed on the screen.
We also did a connectivity test using the multimeter. We used it to confirm the connectivity between the touch pads on the QPAD and their corresponding pins. This helped confirm that they were soldered correctly and connected as expected.