This project DIY Variable Power Supply Circuit shows how to use an Arduino Uno board to generate a variable power source. A transistor and resistors are used to modify the circuits steady 9V output, which is produced by an IC 7809 voltage regulator. A 100uF capacitor filters the output voltage. The output voltage may be […]
Digital Code Lock Circuit using Arduino
Everywhere in the globe, security is crucial and it presents a significant challenge for locations that maintain secrecy. This initiative contributes to increased security. This project uses an Arduino, a tiny microcontroller to create a basic lock. Using an Arduino UNO board, a keypad module, a buzzer, a 16×2 LCD, a BC547 transistor and a […]
Simple Heartbeat Monitor Circuit using Arduino
In this project, we developed an Arduino based heartbeat monitor that uses a sensor that monitors heartbeats when your finger is placed on it to count heartbeats per minute. This is significant because your heartbeat provides information to doctors about your health. Heartbeat Monitor Circuit uses components like Arduino UNO, an LCD display, two push […]
Simple Servo Motor Controller Circuit using Arduino
Servo motors are flexible parts used in many different applications since they are electromechanical actuators that have the ability to rotate to a certain position. Applications for servomotors include automated manufacturing, robotics, and CNC equipment, etc. This post will examine how to use an Arduino microcontroller to drive a servo motor while adding push buttons, […]
Simple Arduino LED Dimmer Circuit using PWM
This post shows how to use Pulse Width Modulation PWM on an Arduino microcontroller to regulate the brightness of an LED. PWM is a technology that successfully controls the average output voltage by varying the square waves duty cycle. We can alter the brightness of the LED by varying the duty cycle, which modifies the […]
Arduino Temperature Controller Circuit using DC Fan
This Arduino Temperature Controller Circuit article shows how to assemble a basic temperature controller by using an Arduino UNO board, an LCD display, a DC fan, a transistor, a DHT11 temperature and humidity sensor, and a few resistors. This circuit will allow us to display changes in both temperature and fan speed on a LCD […]