Electronics Design

Here is the link to our Group assignment: Week 6 Group Assignment
This group assignment on electronic measurement tools gave me hands-on insight into the fundamental skills of circuit debugging. Using the multimeter, I practiced measuring both voltage (in parallel across the ESP32’s VCC and GND, reading 5.00 V) and current (in series through GPIO 19, reading 2.78 mA). This reinforced the critical distinction between parallel and series connections, which is easy to confuse in theory but becomes intuitive once you physically break the circuit path.
The oscilloscope session was particularly eye-opening. Watching the actual PWM waveform controlling the servo motor made abstract concepts—pulse width, duty cycle, and signal timing—visually concrete. Seeing how the square wave shifted as the servo rotated from 0° to 90° helped me understand how microcontrollers communicate with actuators in real time.
Working collaboratively also accelerated my learning. When one teammate struggled to get a stable probe contact, another would spot a loose ground connection. This experience taught me that hardware debugging is as much about methodical observation and teamwork as it is about theoretical knowledge. These measurement skills will be essential for troubleshooting my own embedded projects going forward.

EDA Tool

I will use LCEDA to design the electronics.
Here is the official website of LCEDA: LCEDA
I designed a simple board for XIAO_ESP32-C3, it's a single layer board, I've connected two LEDs and a button, I also designed the Dupont wire connector female ports for the board.

The above image is the schematic of the board, the follow is the PCB design.

I used the DRC check function to check the design, when there was no error, Which means the design is correct, I could export the PCB file.

Here is the PCB design files (gerber files): Gerber_Guannan.zip