This project is for Arduino Piano Music Keyboard with Memory Circuit. Main parts are Arduino Uno, push buttons, buzzer, LCD and resistors. When button is press then buzzer make piano sound. LCD show note name on screen. We can record notes and play again later. It is small and fun project. Good for learning Arduino, […]
Sound Sensor Circuit using IC LM393
Sound follows us in every moment of our life. Wherever we go sound travels with us. Sometimes we need a small electronic circuit that can sense sound and give output. A sound sensor is useful in many projects like clap switch, voice controlled light, sound activated alarm, toys and automation systems. This article explains a […]
Sound Sensor Direction Circuit using Arduino
Sound is everywhere. Sometimes we want to know from which side sound comes. Example in robot or in security. With Arduino and some sound sensor we can find sound direction. In this circuit we used four sound sensors and one OLED display with Arduino. OLED show which side sound comes. This project for Sound Sensor […]
Dancing Water Fountain Circuit with Arduino
Dancing Water Fountain Circuit with Arduino is small project where water moves like dance when music is played. Sound sensor listen music beat and Arduino controls the motor pump. Pump push water up and down in rhythm of sound. With some LED light it look very beautiful like mini musical fountain at home. Circuit is […]
Arduino Based Obstacle Avoidance Robot Circuit
This project is for making a small robot car. Robot can move and avoid obstacle on road. It uses Arduino Uno, ultrasonic sensor HC-SR04, motor driver L293D and two DC motors. This Arduino Based Obstacle Avoidance Robot Circuit is simple and good for beginners. Robot check distance with ultrasonic sensor. If obstacle is near then […]
Arduino Based Automatic Gate Opening and Closing Circuit
This project is for Arduino Based Automatic Gate Opening and Closing Circuit. This system uses Arduino UNO, Ultrasonic sensor, NPN transistor, Servo motor, LCD display ,12V battery and few resistors. When someone comes in front of the gate the ultrasonic sensor detect distance and send signal to Arduino. Arduino then control motor to open or […]