For fun and learning project. We learn basic electronics, coding and sensor uses. Here we will learn How to Create a Water Level Sensor Circuit with Arduino This guide teaches us how to make water sensor. It is good for stopping overflow, checking water in tank or auto watering plants. We can use Arduino Uno […]
Arduino Projects
DIY Variable Power Supply Circuit using Arduino
This DIY Variable Power Supply Circuit using Arduino makes changeable power. It uses transistor and resistors to change 9V output from IC 7809 regulator. One 100uF capacitor help clean the output voltage. Two pushbuttons can change the voltage by hand. LCD screen show real output voltage. Coding: Code Explanation: Circuit Working: Parts List: Component Quantity […]
Digital Code Lock Circuit using Arduino
Security is important everywhere in world and is more hard in secret places. This project for Digital Code Lock Circuit using Arduino help make better security. It use Arduino, small computer to make simple lock. With Arduino UNO, keypad, buzzer, LCD (16×2), BC547 transistor and resistors it show how digital code lock work. User must […]
Simple Heartbeat Monitor Circuit using Arduino
In this post we will show how to make Simple Heartbeat Monitor Circuit using Arduino. When we put finger on sensor it count heartbeats per minute. This is important because heartbeat tells doctor about our health. We use Arduino UNO, LCD screen, two buttons, one resistor and heartbeat sensor to build it. Sensor catches heartbeat […]
Simple Servo Motor Controller Circuit using Arduino
Servo motor is small machine part. It can turn to exact position. People use it in many things like robots, CNC machines and factory machines. This post for Simple Servo Motor Controller Circuit using Arduino show how to control servo motor using Arduino. It also use push buttons, capacitors, resistors and IC 7809 for power. […]
Simple Arduino LED Dimmer Circuit using PWM
This post show how to make a Simple Arduino LED Dimmer Circuit using PWM. PWM changes voltage by changing square wave duty cycle. It changes duty cycle to make LED more or less bright. More power means more brightness. Coding: Circuit Working: Parts List: Component Quantity Resistor 220Ω 1/4 watt 1 10k 1/4 watt 2 […]