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Arduino Solar Tracker

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  Arduino Solar Tracker In modern solar tracking systems, the solar panels are fixed on a structure that moves according to the position of the sun. Let us design a solar tracker using two servo motors, a light sensor consisting of four LDRs and Arduino UNO board. Table of Contents Circuit Diagram Components Required Working Setup Project Code Circuit Diagram The circuit design of solar tracker is simple but setting up the system must be done carefully. Four LDRs and Four 100KΩ resistors are connected in a voltage divider fashion and the output is given to 4 Analog input pins of Arduino. The PWM inputs of two servos are given from digital pins 9 and 10 of Arduino. Components Required Arduino UNO  [ Buy Here ] Servo Motor  [ Buy Here ] Light Sensors LDR Resistors Working LDRs are used as the main light sensors. Two servo motors are fixed to the structure that holds the solar panel. The program for Arduino is uploaded to the microcontroller. Th...
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Arduino 4-Digit 7-Segment LED Display

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  Arduino 4-Digit 7-Segment LED Display 7 Segment LED displays are used in many applications as front panel number indicators. The most common applications are calculators, microwave ovens, electronic lab equipment like function generators and frequency counters. A 7 segment LED display consists of 7 LEDs arranged in such a way that it can display numbers from 0 to 9. The arrangement of LEDs in the display can be either common anode or common cathode. In this project, a 4 – digit 7 – segment LED display is used to display numbers using Arduino. Either a compact module containing four 7- segment LED displays can be used or four individual 7 – segment displays can be used by multiplexing them. Table of Contents Circuit Diagram Components Required Working of 4 – Digit 7 – Segment LED Display Code Circuit Diagram Components Required Arduino UNO — 1 [ Buy Here ] 4 – Digit compact 7 – segment LED display — 1(Or)7 – Segment LED display — 4 BC547 — 4 1KΩ — 4 1...
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GSM Based Home Security Alarm System Using Arduino

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  GSM Based Home Security Alarm System Using Arduino Home Security Systems are an important feature of modern residential and office setups. Home security systems must be affordable, reliable and effective. Modern complex home security systems include several security features like fire, intruders, electronic door lock, heat, smoke, temperature, etc. Some security systems may be a combination of all the security measures. Such complex systems may be expensive and may not be affordable by everyone. There are individual security systems based on the requirement. In this project, we designed a simple but very efficient home security that has a function of calling the homeowner on his/her mobile number in case of an intruder alert. Help us in selecting the next DIY Arduino Project.   : Select your Favourite Project » The project is based on Arduino, PIR motion detection sensor and GSM Module. Table of Contents Circuit Diagram Hardware Required Circuit ...
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