Terminé

Change Arduino Code to Use Relay instead of Transistor (URGENT)

I have code for a project that uses transistor as on and off switch for a heater. The heater is 12v 100watts which is about 8.3 amps. The problem is my TIP122 transistor overheats.

I am already using IN1 on this project for a solenoid. I would like to change the code to use IN2 to turn on and off the heater.

This is the relay I'm using

[login to view URL]

and this is the heater

https://www.amazon.com/gp/product/B016ZPLLOM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

This is a sample of the code that needs to be edited.

////////////////////////////////////////////

total = total - readings[index];

float temp = analogRead(tempsensor);

//[login to view URL](temp);

//delay(1);

//Filter

readings[index] = temp;

total = total + readings[index];

index = index + 1;

if (index >= numReadings)

{

index = 0;

average = total / numReadings;

LM35_control = (5.0 * average * 100.0) / 1024;

// (T(°F) - 32) × 5/9

LM35_control = LM35_control*9/5+32;

[login to view URL]("Temp: ");

[login to view URL](LM35_control);

[login to view URL](" F");

UpdateScreen();

}

//////////////////////////////////////////

if (LM35_control<120)

{

analogWrite(heater,200);

}

else if (LM35_control>145)

{

analogWrite(heater,0);

}//put your main code here, to run repeatedly:

if (validReceived)

{

So if the temp is below 120 then the heater turn on. If above 140 then turns off.

I need it done asap as I have customers waiting for product.

Thanks,

Compétences : Arduino, Génie Électrique, Electronique, Microcontrôleur, Mise en Page PCB

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Concernant l'employeur :
( 131 commentaires ) Thiensville, United States

Nº du projet : #11369841

Décerné à:

amelectronics

Hello dear I have experience in designing electronics circuits and can make your project. i will make your project practically on breadboard and will provide you circuit and code If you wish we can discuss in chat.

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(40 Commentaires)
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