Single axis solar tracker using arduino pdf

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Single axis solar tracker using arduino pdf

Add the following snippet to your HTML:. Project in progress by Nafia Nisaul Hamidah. Dalam proyek ini, LDR bekerja sebagai detektor cahaya. LDR Light Dependent Resistor yang juga dikenal sebagai photo resistor adalah perangkat sensitif cahaya.

Resistansinya menurun saat cahaya jatuh di atasnya. LDR ditempatkan di sisi panel surya dan Servo Motor digunakan untuk memutar panel surya. Servo akan memindahkan panel surya ke arah LDR yang resistannya akan rendah, berarti terhadap LDR yang jatuh cahaya, dengan cara itu akan terus mengikuti cahaya. Dan jika ada jumlah cahaya yang sama yang jatuh pada kedua LDR, maka servo tidak akan diputar.

Servo akan mencoba memindahkan panel surya ke posisi di mana kedua LDR akan memiliki resistansi yang sama berarti di mana jumlah cahaya yang sama akan jatuh pada kedua resistor dan jika resistansi salah satu LDR akan berubah maka akan berputar ke arah resistansi rendah LDR. Periksa Video Demonstrasi di akhir Artikel ini Sebagai pengganti sinar matahari saya menggunakan api sebagai cahaya.

Please log in or sign up to comment. Fun and easy green robot! Build a sun tracking solar array in under an hour. Bonus: charge your phone with free clean energy! A solar panel that can rotate in two axis either automatically using four light sensors, either manually with the aid of two potentiometers. Project tutorial by Giannis Arvanitakis.

Project showcase by DemetrisEng. Tracks the sun to provide more power for longer - With Live Data Feed. Project tutorial by Jed Hodson. Calculates the position of the sun relative to the trackers position on the earth and points the array at the sun.

Project in progress by Team Trouble. Project tutorial by Brown Dog Gadgets. Sign In. My dashboard Add project. Project in progress.

Arduino Solar Tracker Using LDR Sensor & Servo Motor

Soldering iron generic Lem Pistol. Arduino IDE. Solar Tracking System.This sounds simple enough, except that the sun moves throughout the day. This is why there are now a number of different mechanisms which work on a range of principles with the purpose of aligning your panel or array of panels directly towards the sun, they are called solar trackers.

There are two principle types of trackers, single and duel axis trackers.

single axis solar tracker using arduino pdf

Single axis trackers are adjusted every month or so account for seasonal changes in the suns position, the single axis is then used to track the daily movement of the sun across the sky. Duel axis trackers eliminate the need for monthly adjustment by using one axis to track the suns daily movement and another axis to track the seasonal movement.

single axis solar tracker using arduino pdf

This solar tracker control system is designed to take light measurements from the east and west left and right side of the solar panel and determine which way to move the panel to point it directly at the source of the light.

A servo is used to actuate the panel tracker; these are available in a broad range of sizes and can be scaled according to your panel size. Although this tracker is single axis, the two sensors and servo can simply be duplicated to provide dual axis control. This project assumes you know the basics of Arduino programming, otherwise read my article on getting started with Arduino. You could also take this project further by building your own solar panel as well, here is our guide on how to build a solar panel at home.

If you are thinking of switching some or all of your homes power requirements to solar power, read my article on switching to solar power first. Update: I have had a number of requests to show how this project and code can be modified to drive a linear actuator for heavier loads and panel arrays.

I have written up a "how to" on the physical changes required as well as the revised software to make a linear actuator driven solar tracker. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. Here is a list of the items which you need in order to complete this project. If you are looking to make a dual axis tracking stand then you will need to double up on the servos, LDRs and resistors.

The specific servo model or size has not been stated as it depends on the size and weight of your solar panel. The one used in this project is a 9 gram analogue servo. You can use any size PWM hobby servo with the Arduino although the larger servos will require their own power source.

First you need to start by assembling the components onto your solar panel, or breadboard. The LDRs light dependent resistors or PRs photo-resistors change resistance with changing light, therefore they need to be connected in such a way that the changing resistance is converted into a changing voltage signal which the Arduino understands.

The servo is controlled through one of the Arduino's PWM outputs. If you are going to be installing the solar tracker permanently then you may want to solder the resistors and LDRs together so that they cannot come loose. If you are simply trying this project for fun then a breadboard is perfect. The basic circuit for the connection of the LDRs and servo to the Arduino is shown in the attached image.

The resistors R1 and R2 are each 4. If you are using a servo larger than 9 grams then the Arduino will probably not be able to supply it enough power to achieve its full torque capability, you will need to supply the servo directly with its own 5V power source. If you are making this a permanent installation, then it is best to solder the resistors right up near the LDRs on the panel. This way you can run a single 4 core wire from the control box up to the sensors on the panel, the four cores will be 5V, Gnd and then signal 1 and 2 from the LDRs.

Once your LDRs and resistors have been soldered together, you can mount them on your solar panel. Mount the LDRs on the east and west left and right sides of the panel facing towards the sun. Make sure that they are not shaded in any way by the frame and have an unobstructed view of the sun.

A breadboard has been used in this project purely to distribute the Ardunio's 5V power supply to both the resistors and the servo. The servo needs to be sized according to the size of your solar panel. The panel used in this example is small and relatively light; a small servo was therefore used and is powered by the Arduino. Make sure that you connect the external power sources ground to the Arduinos GND as well otherwise the PWM control signal to the servo will not work.

Here is the link to download the Solar Tracker code. The code essential measures the light intensity from both photo resistors, it then compares the two to see which is receiving more light. If the difference is greater than a small threshold then the Arduino tells the servo to move in that direction to direct the panel towards the light source.To browse Academia.

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Log In Sign Up. Sharad kumar. Introduction i Purpose ii Scope iii Definition 2. Overall Description 1. Screen Shots 5. Introduction i Purpose A typical solar panel converts only 30 to 40 percent of the incident solar irradiation into electrical energy. Thus to get a constant output, an automated system is required which should be capable to constantly rotate the solar panel. It is completely automatic and keeps the panel in front of sun until that is visible.

The unique feature of this system is that instead of taking the earth as its reference, it takes the sun as a guiding source. Its active sensors constantly monitor the sunlight and rotate the panel towards the direction where the intensity of sunlight is maximum. With the rapid increase in population and economic development, the problems of the energy crisis and global warming effects are today a cause for increasing concern.

Solar energy is one of the primary sources of clean, abundant and inexhaustible energy, that not only provides alternative energy resources, but also improves environmental pollution.

The most immediate and technologically attractive use of solar energy is through photovoltaic conversion. The physics of the PV cell also called solar cell is very similar to the classical p-n junction diode. The PV cell converts the sunlight directly into direct current DC electricity by the photovoltaic effect [1,2].

A PV panel or module is a packaged interconnected assembly of PV cells. In order to maximize the power output from the PV panels, one needs to keep the panels in an optimum position perpendicular to the solar radiation during the day.

As such, it is necessary to have it equipped with a Sun tracker. The vital importance of a dual axis solar tracker lies in its better efficiency and sustainability to give a better output compared to a fived solar panel or a single axis solar tracker. Dual Axis Tracker have two different degrees through which they use as axis of rotation. The dual axis are usually at a normal of each rotate both east to west zenithal and north to south.

Solar tracking is the most appropriate technology to enhance the electricity production of a PV system. To achieve a high degree of tracking accuracy, several approaches have been widely investigated. Generally, they can be classified as either open-loop tracking types based on solar movement mathematical models or closed-loop tracking types using sensor-based feedback controllers [3—5]. In the open-loop tracking approach, a tracking formula or control algorithm is used.

Referring to the literature [6—10], the azimuth and the elevation angles of the Sun were determined by solar movement models or algorithms at the given date, time and geographical information. The control algorithms were executed in a microprocessor controller [11,12]. This paper proposes an empirical research approach on this issue. In recent years, there has been a growing volume of research concerned with dual-axis solar tracking systems.

However, in the existing research, most of them used two stepper motors [22,23] or two DC motors [16,17,24,25] to perform dual-axis solar tracking.

With two tracking motors designs, two motors were mounted on perpendicular axes, and even aligned them in certain directions. In some cases, both motors could not move at the same time [5]. Furthermore, such systems always involve complex tracking strategies using microprocessor chips as a control platform. In this work, employing a dual-axis with only single tracking motor, an attempt has been made to develop and implement a simple and efficient control scheme.

The two axes of the Sun tracker were allowed to move simultaneously within their respective ranges. Utilizing conventional electronic circuits, no programming or computer interface was needed. Moreover, the proposed system used a stand-alone PV inverter to drive motor and provide power supply.Advantage of this project is that Solar panel will always follow the sun light will always face towards the sun to get charge all the time and can provide the supply the maximum power.

The prototype is very easy to build. Below you will find the complete description of how it works and how the prototype is made. Check the various circuits based on LDR here. The servo will move the solar panel towards the LDR whose resistance will be low, mean towards the LDR on which light is falling, that way it will keep following the light. And if there is same amount of light falling on both the LDR, then servo will not rotate.

Check the Demonstration Video at the end of this Article. First of all, take a small piece of cardboard and make a hole at one end. We will insert the screw in it to fix it with the servo later on. Now fix two small pieces of cardboard with each other in a V shape with help of glue or hot gun and place solar panel on it.

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Then attach the bottom side of the V shape to the other end of small piece of cardboard in which you made a hole in first step. Now insert the screw in the hole you made on card board and insert it through the hole into the servo. The screw comes with the servo motor when you buy it. Now place the servo on another piece of cardboard. The size of the cardboard should be larger enough so that you can place a Arduino Uno, a breadboard and a battery on it.

Attach the LDRs on the two sides of the solar panel with the help of glue. You will have to connect these with the resistors later on.

Single Axis Solar Tracker Using Arduino I സോളാർ ട്രാക്കർ നിർമ്മിച്ചാലോ... I TekH X

Now place the Arduino, battery and the breadboard on the cardboard and make the connection as described in the Circuit diagram and Explanation section below. The final prototype is shown below.

Arduino recommended input voltage is from 7 to 12 volts but you can power it within the range of 6 to 20 volts which is the limit. Try to power it within the recommended input voltage. So connect the positive wire of the battery to the Vin of the Arduino and the negative wire of the battery to the ground of the Arduino.

Next connect the servo to the Arduino. Connect the positive wire of the servo to the 5V of Arduino and ground wire to the ground of the Arduino and then connect the signal wire of Servo to the digital pin 9 of Arduino.

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The servo will help in moving the solar panel. Now connect the LDRs to the Arduino. Connect one end of the LDR to the one end of the 10k resistor and also connect this end to the A0 of the Arduino and connect the other end of that resistor to the ground and connect the other end of LDR to the 5V. Similarly, connect the one end of second LDR to the one end of other 10k resistor and also connect that end to the A1 of Arduino and connect the other end of that resistor to ground and connect the other end of LDR to 5V of Arduino.Pages: [1].

Hi all, I'm relatively new to Arduino and I'm working on a project with solar energy. As of now, the DC motor follows the LDR with more light hitting on it, but I would like the motor to rotate at certain angles instead of continuously rotate and I don't know how to achieve this.

Arduino Solar Tracker

Please help if you can! Here is the code: Code: [Select]. What is the point of doing the calculation for voltage? If you're just checking to see which one is greater then just use the ADC readings. Why waste resources on floating point calculations you don't need?

DC motors don't have angular control. For that you would want a servo. Or you would have to put some sort of encoder or other sensor on the motor that could tell you the angle. Keep Arduino stuff out on the boards where it belongs. The reason why we're calculating the voltage is that of the voltage divider in which the LDRs are included.

We want to keep track of the voltage to see if they're reading it correctly. I read about the encoder and I'm planning to perhaps use it, but I wouldn't know which one to buy or how to use it since I've never used them before.

If you are sun tracking a worm drive DC gear motor with duel outputs may work out well.

single axis solar tracker using arduino pdf

One output shaft for the drive coupling and the other for a rotary encoder.Solar energy is one of the fastest growing industries in the world; today more than 65 GW energy is produced by solar power. Since solar energy is renewable, it is a good power source, especially for developing countries. In this project, I am going to show you how to make a solar tracker using Arduino Nano.

single axis solar tracker using arduino pdf

The solar panel tracker is designed to follow the sun movement so that maximum light intensity hits on the solar panel, thus increasing the power efficiency. This system can also be successfully implemented in other solar energy based projects water heaters and steam turbines. There are basically two types of Arduino sun trackers.

One of them is the single axis solar tracker and the other is dual axis.

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Single axis solar tracking system moves the solar panel from east to west in a day to point in the direction of the sun. Since the East-West tracking is more important, I will be explaining more of the single axis solar tracking. In this project an Arduino Nano is used, which works as a controlling unit.

A dummy solar plate is attached in parallel to the axis of servo motor and both the sensors are kept on the dummy solar plate as shown in the figure below.

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The arrangement is made in such a way that the movement of sun is from sensor 1 to sensor 2, as shown in the mage below. Sun is in right Side — Light on sensor2 is high because shadow of barrier falls on sensor1 so solar plate movie anticlockwise.

Sun is in the middle — Light on both sensors are equal so, plate will not rotate in any direction. Output is shown in the demo video below.

You can see that the plate moves in the direction of light, but some fluctuation is visible in video because light is coming from multiple sources.

Fluctuation is automatically removed when system is placed in direct sunlight. Using a breadboard or Zero PCB are also other simpler options to create this solar tracker circuit.

Arduino Solar Tracker — Circuit Diagram. The sensors are connected in series with 10 k ohm resistors.This sounds simple enough, except that the sun moves throughout the day. This is why there are now a number of different mechanisms which work on a range of principles with the purpose of aligning your panel or array of panels directly towards the sun, they are called solar trackers.

There are two principle types of trackers, single and duel axis trackers. Single axis trackers are adjusted every month or so account for seasonal changes in the suns position, the single axis is then used to track the daily movement of the sun across the sky.

Duel axis trackers eliminate the need for monthly adjustment by using one axis to track the suns daily movement and another axis to track the seasonal movement. This solar tracker control system is designed to take light measurements from the east and west left and right side of the solar panel and determine which way to move the panel to point it directly at the source of the light.

A servo is used to actuate the panel tracker; these are available in a broad range of sizes and can be scaled according to your panel size. Although this tracker is single axis, the two sensors and servo can simply be duplicated to provide dual axis control. Here is a list of the items which you need in order to complete this project.

If you are looking to make a dual axis tracking stand then you will need to double up on the servos, LDRs and resistors. The specific servo model or size has not been stated as it depends on the size and weight of your solar panel.

The one used in this project is a 9 gram analogue servo. You can use any size PWM hobby servo with the Arduino although the larger servos will require their own power source. First you need to start by assembling the components onto your solar panel, or breadboard. The LDRs light dependent resistors or PRs photo-resistors change resistance with changing light, therefore they need to be connected in such a way that the changing resistance is converted into a changing voltage signal which the Arduino understands.

If you are going to be installing the solar tracker permanently then you may want to solder the resistors and LDRs together so that they cannot come loose. If you are simply trying this project for fun then a breadboard is perfect. The basic circuit for the connection of the LDRs and servo to the Arduino is shown in the attached image.

The resistors R1 and R2 are each 4. If you are making this a permanent installation, then it is best to solder the resistors right up near the LDRs on the panel. This way you can run a single 4 core wire from the control box up to the sensors on the panel, the four cores will be 5V, Gnd and then signal 1 and 2 from the LDRs. Once your LDRs and resistors have been soldered together, you can mount them on your solar panel.


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