Week 06
- Use the test equipment in your lab to observe the operation of a microcontroller circuit board (as a minimum, you should demonstrate the use of a logic analyzer)
- Document your work on the group work page and reflect what you learned on your individual page
Multimeters
We performed baseline safety and operational checks on an RP2350-based microcontroller circuit.
-
Continuity Testing
Before connecting the board to USB power, the multimeter was set to continuity mode (the audible beep setting). You can probe the 3.3V and GND nets to verify there were no accidental bridges or shorts on the board that could damage the microcontroller upon powering up.
-
Voltage Verification
After confirming the circuit was free of shorts, USB power was applied. The multimeter was then set to measure DC voltage to verify the potential difference between the 3V3 pin and GND. The reading showed a steady output hovering around 3.3V (± 0.1V). This slight variance is expected when a circuit is under active load (in this case, powering a connected screen), confirming that the microcontroller's onboard voltage regulator is functioning safely and correctly.