Observing Microcontroller Signals
For this activity, I used a Seeed Studio XIAO RP2040 microcontroller to observe and analyze signal behavior.
The board was programmed in the Arduino IDE to generate continuously changing values using a mathematical
sine function. These values were transmitted through serial communication and displayed using the
Arduino Serial Plotter.
Equipment Used
- Seeed Studio XIAO RP2040
- Arduino IDE
- Arduino Serial Plotter
- Digital Multimeter
- USB Connection
- Procedure
- Programmed the XIAO RP2040 to generate waveform data.
- Transmitted the data through serial communication.
- Observed the waveform using the Arduino Serial Plotter.
- Used a digital multimeter to verify operating voltage and confirm that the board was functioning correctly.
- Results
The Serial Plotter displayed a continuous waveform generated by the microcontroller. This allowed
real-time observation of signal changes and demonstrated how data can be monitored and analyzed
during development. Voltage measurements confirmed that the board was receiving proper power and
operating as expected.
What I Learned
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This exercise helped me better understand how a microcontroller generates, processes, and communicates
data. By viewing the waveform in the Serial Plotter, I was able to observe how changes in software
produce measurable changes in output. The activity also reinforced the importance of test equipment
when troubleshooting and validating electronic systems.