Electronics Production

This week focuses on fabricating a microcontroller development board. We will learn about PCB milling, soldering, and circuit assembly. This is a technical and execution-focused week.

To Do This Week:

Fabricate a Microcontroller Development Board:
• Produce a PCB based on the provided design.
• Use a milling machine or an alternative fabrication method.

Learn PCB Milling Techniques:
• Understand the operation of a PCB milling machine.
• Set up the correct toolpaths for accurate circuit fabrication.

Assemble and Solder Components:
• Place surface-mount components correctly on the board.
• Use proper soldering techniques to ensure good electrical connections.

Test the Manufactured Board:
• Check for continuity and short circuits before powering up.
• Ensure that all connections are correctly soldered.

Prepare for Next Week:
• Confirm that the board is functional for next week's programming task.
• Personalization is optional but encouraged for extra credit.

Notes from Lecture:

• Microcontroller used: **RP2040 (Seed Shall Board)** – includes buttons, LEDs, and headers for interfacing.
• The RP2040 board allows programming of other processors using specific headers.
• Workflow for PCB production: Export images, generate toolpaths, and mill the board.
• Alternative fabrication techniques (if not using a milling machine) include chemical etching or outsourcing.
• Soldering quality is crucial for the circuit to function properly.
• Before applying power, always check for **short circuits** and **proper connections**.
• Extra credit: **Modify the design** to personalize the PCB.

1. Step 1

First step explanation