Things used in this project

Hardware components:
Osh park
OSH Park Custom fabricated PCB
Board Link: https://oshpark.com/projects/XoCU9Yxf
×1
Adafruit industries ada1536 image
Buzzer
×1
09590 01
LED (generic)
×1
08377 02 l
Resistor 330 ohm
×1
Adafruit industries ada654 image 75px
Coin Cell Battery CR2032
×1
CR2032 Holder
×1
Attiny85
Atmel ATTiny85
×1
8-pin DIP socket
×1
A000066 iso both
Arduino Arduino UNO & Genuino UNO
Used only for programming the ATtiny
×1
Panasonic eca1hm2r2
Capacitor 10 µF
Used only for programming the ATtiny
×1
Software apps and online services:
Autodesk circuits.io
Hand tools and fabrication machines:
09507 01
Soldering iron (generic)

Schematics

PCB Design

Code

Annoying CircuitArduino
//Code produced by Alex Wulff: http://www.AlexWulff.com

#define BUZZ      0
#define LED       1
#define INITIAL   5000
//10,000 ms yields a total sequence time of 46.5 Seconds
//20,000 ms yields a total sequence time of 91.5 Seconds
//30,000 ms yields a total sequence time of 136.5 Seconds
//You get the pattern. Each 10 seconds yields another 45
//seconds of total time on the sequence.

void setup() {
  // put your setup code here, to run once:
  pinMode(BUZZ, OUTPUT);
  pinMode(LED, OUTPUT);

  //Flash the light to make sure the device is working
  for (int i = 0; i < 5; i++) {
    digitalWrite(LED, HIGH);
    delay(200);
    digitalWrite(LED, LOW);
    delay(200);
  }
}

void loop() {
  for (int i = 1; i < 50; i++) {
    digitalWrite(BUZZ, HIGH);
    digitalWrite(LED, HIGH);
    delay(30);
    digitalWrite(0, LOW);
    digitalWrite(LED, LOW);
    delay(INITIAL/i);
  }
}

Credits

Dsc 0358 aupidjdwxg
Alex Wulff

I'm an 18-year-old maker from Upstate New York. I love Arduino, embedded systems, 3D printing, and iOS development. www.AlexWulff.com

Contact

Replications

Did you replicate this project? Share it!

I made one

Love this project? Think it could be improved? Tell us what you think!

Give feedback

Comments

Similar projects you might like

Launch Pad Count Down Sequence Display
Easy
  • 25
  • 2

Work in progress

A 7 Segment Display of a Countdown from 9 to 0 for a Launch Pad Control Panel.

Mask with Blinking Eye
Easy
  • 64
  • 3

Protip

Makes a great mask more eye-catching when one eye is blinking. Has an on-off switch, is powered by a cell , and driven by an ATtiny85.

Know the Temp of Your Home From Anywhere with Arduino Cloud!
Easy
  • 1,539
  • 9

Full instructions

Ever wanted to know the temperature of your home from somewhere? Here's an easy way to do it with Arduino Cloud and the Yun Shield!

Water Softener
Easy
  • 407
  • 6

Full instructions

Sweeping frequency magnetic hard water conditioner

Safe City: A Device to Keep You Safe
Easy
  • 840
  • 8

Full instructions

The device will keep you safe. Just have to click a button and your precise location will be shared.

Scavenger Hunt Clues w/ Telephone Keypad
Easy
  • 1,018
  • 4

Full instructions

Type the correct code on the phone's keypad to hear the clue through the handset, then decode the message to finish before the other team.

Sign up / LoginProjectsPlatformsTopicsContestsLiveAppsBetaFree StoreBlog