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Arduino Solar Tracker
http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]
Step 5: The Codeyou can download the code down this page
/* this code is written by geobrucefor more info check my site http://xprobe.net*/#include <Servo.h> // include Servo library
Servo horizontal; // horizontal servoint 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 leftint ldrrt = 1; //LDR top rigtint ldrld = 2; //LDR down leftint 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
int dtime = analogRead(4)/20; // read potentiometersint tol = analogRead(5)/4;
int avt = (lt + rt) / 2; // average value topint avd = (ld + rd) / 2; // average value downint avl = (lt + ld) / 2; // average value left
About This Instructable
Posted:Jul 3, 2011
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Hello, I'm Bruce. I'm a student at DonBosco Hoboken in Belgium. I have a widevariety of interests: electronics, computers,technology, ... In my spare time I spend a lotof time on: projects, explor...read more »
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Arduino Solar Tracker
http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]
int avr = (rt + rd) / 2; // average value right
int dvert = avt - avd; // check the diffirence of up and downint dhoriz = avl - avr;// check the diffirence og left and rigt
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 horizontalangle{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 1 KB
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Arduino Solar Tracker
http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]
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Yasesu says:
geo bruce (author) in reply to Yasesu
Yasesu in reply to geo bruce
geo bruce (author) in reply to Yasesu
tolstoyan in reply to geo bruce
Could you add a parts list to the instructions?
Thanks
done ;)
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 totake your idea, and make it bigger. I need to find some large servo motors.
if you want to go big you can better go for stepper motors and change the code a little bit
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 whatexactly to replace if any, thanks because im planning to build this its just that ibought stepper motor instead of servo
Arduino Solar Tracker
http://www.instructables.com/id/Arduino-Solar-Tracker/step5/The-Code/[25-Sep-2013 1:20:26 AM]
Jul 27, 2013. 2:01 AM ReplyRene Artois in reply to tolstoyan
You can't drive stepper motors directly with arduino. It will burn. Use arduinostepper motor shield insted. It can handle bigger loads.
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