Week 4 Recipe: PCB Design

Cooking up circuits for future projects

Serves: One ambitious electronics chef

Total Time: Several hours of designing, laying out, and simulating

Course 1: Baking the PCB Base

This week I prepared my first PCB in KiCad. I designed a board around a Xiao ESP32-S3 microcontroller, with an MPU-6050 6 DOF accelerometer/gyroscope to track step speed, and a DFR0299 mini MP3 player module to output audio to a 2-pin speaker. Creating a solid PCB “base layer” will make future weekly projects and my final project much easier.

PCB design
🍳 Initial KiCad PCB layout
Second PCB view
🍲 Alternate view of PCB routing and components

Course 2: Simmering the Simulation

Since the full design wouldn’t benefit from simulation, I prepared a small demo to satisfy the simulation portion of the assignment. I used Wowki to design a simple circuit that blinks an LED on and off — a tasty little appetizer for electronics practice.

LED blink simulation
💡 LED blink simulation in Wowki