Week 3 – Marquee Letter PCB Design

This week in Homemade Hardware I was re-introduced to creating circuit schematics and PCB designs using Autodesk Eagle.

As part of a larger group project each member of the class will be creating a letter for an LED sign.

For my circuit I am creating the letter “i”.

My intent with the design is for touching the capacitive touch sensing copper pad to trigger LEDs to blink and a piezo sensor to play a melody.

The circuit is fairly simple running on an ATTiny85 for logic, with 17 LEDs, a piezo buzzer, and several other components for power.

Design here: