Event Type: PCB Design and Milling Workshop Series!
Date of Event: 14th Feb and 21st Feb 2018
SUTD’s Eta Kappu Nu chapter is bustling with activity once again, as we are pushing for more initiatives to cultivate a strong electrical and electronics passion in our students!
Today, marks the end of our series of printed circuit board and design workshops! We held a total of two workshops, one on the 14th of February and one more on the 21st of February. We had a very welcoming response from all participants. The participating students had the experience of learning how to digitally design a simple circuit, and learn how to print. Below are some photos of the entire learning process and event!
In this workshop, students worked on circuit design using the EAGLE CAD software, the preparation of Gerber files, and the actual milling of the printed circuit board (PCB). EAGLE is a scriptable electronic design automation application with schematic capture, printed circuit board layout, auto-router and computer-aided manufacturing features.
We hope that it has helped many of our students in electronics and electromagnetics classes gain a fundamental understanding behind how the software works, and how it can be translated from a digital design to an actual prototype on the PCB mill. The students also learnt how to prepare the print files and to operate the LPKF Milling machines in the SUTD Fab Lab.
We used a simple “night light” circuit as a template for the students to practice. Essentially, the circuit works by having a 3V CR1220 battery power it up. When the light-dependent resistor (LDR) detects high ambient lighting, the voltage at the gate of the transistor falls to near zero, and shuts the current off passing through an LED, triggering it OFF. When the ambient light goes out, the gates to the transistors are “opened” as a high voltage is applied to the gate, and current flows through to light the LED. This was a simple enough example of a basic “logic” circuit for the students to follow. Although the preparation of the print files was tricky (and often ran into many errors…) we still had an enthusiastic response with the amazing turn out of curious, eager and passionate students.
We hope to organise more of such workshops to add value to their curriculum and their learning experience in EPD!
Written by, Samuel Low
21st Feb 2018