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Arduino Solar Tracker by geo bruce  Download 5 Steps

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Step 5: The Code you can download the code down this page /* this code is written by geobruce for more info check my site http://xprobe.net */ #include // include Servo library  Servo horizontal; // horizontal servo int servoh = 90; // stand horizontal servo Servo vertical; // vertical servo  int servov = 90; // stand vertical servo // LDR pin connections // name = analogpin; int ldrlt = 0; //LDR top left int ldrrt = 1; //LDR top rigt int ldrld = 2; //LDR down left int ldrrd = 3; //ldr down rigt void setup() {   Serial.begin(9600); // servo connections // name.attacht(pin);   horizontal.attach(9);    vertical.attach(10); } void loop()  {   int lt = analogRead(ldrlt); // top left   int rt = analogRead(ldrrt); // top right   int ld = analogRead(ldrld); // down left   int rd = analogRead(ldrrd); // down rigt

About This Instructable

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Posted: Jul 3, 2011

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geo bruce   Follow

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Bio: Hello, I'm Bruce. I'm a student at Don Bosco Hoboken in Belgium. I have a wide variety of interests: electronics, computers, technology, ... In my spare time I spend a lot of time on: projects, explor...read more »

More by geo bruce

  int dtime = analogRead(4)/20; // read potentiometers int tol = analogRead(5)/4; int avt = (lt + rt) / 2; // average value top int avd = (ld + rd) / 2; // average value down int avl = (lt + ld) / 2; // average value left

http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]

Tags: Arduino Solar light servo cool energy

Arduino Solar Tracker

sun tracking following sensor

int avr = (rt + rd) / 2; // average value right int dvert = avt - avd; // check the diffirence of up and down int dhoriz = avl - avr;// check the diffirence og left and rigt

Related if (-1*tol > dvert || dvert > tol) // check if the diffirence is in the tolerance else change vertical angle { if (avt > avd) { servov = ++servov; if (servov > 180) { servov = 180; } } else if (avt < avd) { servov= --servov; if (servov < 0) { servov = 0; } } vertical.write(servov); } if (-1*tol > dhoriz || dhoriz > tol) // check if the diffirence is in the tolerance else change horizontal angle { if (avl > avr) { servoh = --servoh; if (servoh < 0) { servoh = 0; } } else if (avl < avr) { servoh = ++servoh; if (servoh > 180) { servoh = 180; } } else if (avl == avr) { // nothing } horizontal.write(servoh); } delay(dtime); } 

solar_tracker__english_.pde

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http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]

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Yasesu says:

Dec 14, 2012. 9:11 AM

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Dec 14, 2012. 9:22 AM

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Dec 14, 2012. 11:59 AM

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Could you add a parts list to the instructions? Thanks

geo bruce (author) in reply to Yasesu done ;) 5

Yasesu in reply to geo bruce

Thank you. That is great. I have a 3 panel 45W solar panel from Harbor Freight. I've been looking at ideas to keep the panels facing the sun. Now I just need to take your idea, and make it bigger. I need to find some large servo motors.

geo bruce (author) in reply to Yasesu

Dec 14, 2012. 1:30 PM

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Jan 24, 2013. 2:56 AM

Reply

if you want to go big you can better go for stepper motors and change the code a little bit 5

tolstoyan in reply to geo bruce

hello geo bruce im a beginner here at the arduino so im not really a code jockey, can you please tell me which part of the code do i have to modified and what exactly to replace if any, thanks because im planning to build this its just that i bought stepper motor instead of servo

http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]

Arduino Solar Tracker

Rene Artois in reply to tolstoyan

Jul 27, 2013. 2:01 AM

Reply

You can't drive stepper motors directly with arduino. It will burn. Use arduino stepper motor shield insted. It can handle bigger loads.

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http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]