This is a small Arduino tone generator project and it uses Arduino Uno, one buzzer, one potentiometer to change the pitch; also this Arduino Pitch Control Circuit using Potentiometer is simple and easy to make. Furthermore, it helps beginners understand PWM, analog reading and digital output and we can use this project to learn basic […]
Mini Projects
Simple Infrared Fire Alarm Circuit
This is Simple Infrared Fire Alarm Circuit for beginners, as it use infrared receiver sensor to detect fire heat or flame light. When fire come close sensor output changes and then LED glow and buzzer makes sound; also this circuit is cheap and easy to make. Furthermore, it also uses only few parts like BC547 […]
Laser Security Alarm Circuit using LDR and BC547 Transistors
This project is for Laser Security Alarm Circuit using LDR and BC547 Transistors, as it uses LDR, two BC547 transistors, one diode and a buzzer. When laser light breaks an alarm rings. Additionally, this circuit is cheap and very easy to build and is good for door security, box security and drawer protection. Circuit Working: […]
Simple Sound Sensor Circuit with Arduino
This project show how to use sound sensor with Arduino; as sound sensor detect clap or loud voice. When sound come, Arduino turn ON LED and buzzer and also this project for Simple Sound Sensor Circuit with Arduino help beginner understand sensor working. Arduino Code: Code Explanation: Circuit Working: Parts List: Components Quantity Resistors 220Ω […]
Measuring Bend Angle using a Flex Sensor Circuit
Flex sensor is a small strip that changes resistance when we bend it. When the sensor remains straight, it has low resistance and when it bends, its resistance increases; also many robots, gloves, gaming devices, medical tools, wearables, and other projects use this sensor. Additionally, sensor works simple, as with more bend it gives more […]
Arduino Flex Sensor Circuit
If we want Arduino to feel the movement, flex sensor is best; with no click, no sound only smooth bending, also it bends and Arduino gets new value every time. Perfect for beginners who want to control things by bending and further its a simple circuit, with simple code, powerful idea. Arduino Code: Code Explanation: […]