Tools, APP Software Used etc.

KiCad 8.0

Description

PCBWay 11-year Anniversary Badge

This visual design was created by https://www.instagram.com/guiye.perez.bongiovanni/ ; however, only the graphical part. The sketch of the electrical design had several mistakes in it, and it was incomplete.

I got the task to turn the visual design into a working badge and circuit. So, based on the graphical elements and a simple Arduino source code (originally with Spanish comments) I had to come up with a design in KiCAD.

First, I reverse-engineered the circuit and fixed the design issues. Then I created the corresponding footprints from the two main graphical elements, which are the front silk screen and the front mask. The front silk screen was straightforward since it was just a simple silk screen print in white colour. The front mask was a bit different because, according to the design, it had to have a golden colour. This is achieved by exposing the copper on the front layer by placing the mask layer over a copper layer and assigning immersion gold (ENIG) surface finish to the board when ordering.

When you upload the code for the ATtiny85, first, you need to burn the bootloader on the chip. The clock source has to be selected as "Internal 16 MHz". After the bootloader has been successfully burned on the chip, upload the code as usual.

Code

Arduino code

C/C++

// Pins where the LED pairs are connected
const int ledPins[] = {0, 1, 2, 4, 3};
const int numSteps = sizeof(ledPins) / sizeof(ledPins[0]);

void setup() {
  // Configure each pin as output and turn off LEDs at the beginning
  for (int i = 0; i < numSteps; i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], HIGH); // HIGH = OFF since LEDs are connected to V+ and sink to MCU
  }
}

void loop() {
  // ---- Animation 1: Turns on one by one, then turns off ----
  for (int i = 0; i < numSteps; i++) {
    digitalWrite(ledPins[i], LOW);  // Turn on LED (sink current)
    delay(1000);
    digitalWrite(ledPins[i], HIGH); // Turn off LED
  }

  delay(800); // Pause between animations

  // ---- Animation 2: Turns on one by one and stays on ----
  for (int i = 0; i < numSteps; i++) {
    digitalWrite(ledPins[i], LOW);  // Turn on LED
    delay(700);
  }

  delay(1500); // Pause while all LEDs are on

  // Turn off all LEDs together
  for (int i = 0; i < numSteps; i++) {
    digitalWrite(ledPins[i], HIGH); // Turn off LED
  }

  delay(1000); // Pause before repeating
}

Schematic and Layout

KiCAD Schematics

pcbway_11year_badge_Schematics.pdf

Download BOM(Bill of materials)

May 23,2025

394 views

PCBWay 11-year Anniversary Badge

A nice badge design's electrical implementation.

394

Published: May 23,2025

Standard PCB

BOM(Bill of materials)

Centroid file

PCBWay Donate 10% cost To Author

File Last Updated: 2025/06/01 (GMT+8)

File update record

2025-06-0105:53:04

Gerber file is updated.

Only PCB

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