Buzzer

A buzzer or beeper is an audio signalling device, which may be mechanical, electromechanical, or piezoelectric (piezo for short). Typical uses of buzzers and beepers include alarm devices, timers, and confirmation of user input such as a mouse click or keystroke.

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ATtiny85 Mini PCB Violin

“A tiny violin for playing tiny tunes Designing and building this tiny violin was a fun way to experiment with building my own microcontroller development board from scratch, as I’ve been meaning to do for a while. So I …

LED Matrix Metronome

“Combine Arduino, an 8*8 bicolour LED matrix and a piezo buzzer to make a cool visual metronome. I’m an Arduino fan and a musician. Practicing with a metronome is a great way to improve your musicianship, but most …

Mini Gamepad

“Hi friends, I made this tiny little gamepad using ATTINY85 , I wanted to make this for a long time but didn’t have enough time , finally finished it and it is so much fun to play with. Firstly I apologize …

Minimal Arduino Metal Detector

“With an Arduino, 10m of wire and a 100 Ohm resistor you can build a metal detector in 10 minutes! It is based on sound physics and works for a large range of coil sizes and shapes. The sensitivity is …

S.H.I.E.L.D - Is Someone Watching You?

“I saw a lot of videos of embarrassed people when they didn’t noticed that their microphone or camera were on, and it gave me the idea to this project. I’ve wrote a simple application in C# that detects …

Arduino RFID Database Security System with ESP8266 ESP-01

“In this article we are going to discuss the designing process of our Arduino Radio Frequency Identification (RFID) Database Security System Project. This will walk you through the way I design my own RFID Project that connects to the database …

DIY Arduino Pin Pointer Metal Detector

“A traditional metal detector can locate a burried item and give you a rough location of the object belw the ground A pinpointer enables you to pin down an object’s location , make a smaller hole when digging , and extract …

Reverse Vending Machine (RVM)

“Designed a machine in which the user can dispose plastic and metal waste and redeem points to collect rewards by scanning the QR code. MOTIVATION: Where Do Plastic Water Bottles End Up? In landfills, floating on oceans, or rivers and …

Vehicle Position Tracking System

“The autonomous device will send the vehicle position to the android app with time and will show the location on google maps. This project will keep track of the numerous vehicle running in various routes.This project also alerts the …

Arduino RTC Bird Feeder v2.0 for Poultry Conditioning

“Feed the poultry in quotidian routine to condition them - sensory preconditioning - to improve egg production and hatching process. I was keeping quails, chickens, and ducks in my garden before I moved, but it was struggling to manage to feed them …