Questions tagged [heat]

Heat is referring to overheating a chip with too much voltage or current, thus producing heat. It often makes a blueish smoke when the chip exploded from pressure. Use this tag for how to cool the chips and/or how far you can push a certain chip before it will have a reduced lifespan.

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How to power ESP32 with 230V AC

I want to power ESP32 with 230V AC and I don’t know how to do it. The requirement is that it must never overheat. What components should i use? The ESP will be in small space with no airflow. Will it ...
krystof18's user avatar
  • 315
1 vote
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it just gets too hot . any way of cooling it?

there i just got started with the arduino mega2560 . i tried 8x8 matrix tube and after ~30secs i found the atmega2560 a bit hot that i can melt a small amount wax on it ! is there any sort of heatsink ...
Raj's user avatar
  • 41
1 vote
2 answers

Whats the best way to keep an Arduino in a waterproof junction box and prevent overheating?

I am trying to make an automatic garden gate unlock that runs on a timer. I plan on running an arduino uno 24/7 with a software timer that activates a motor to release a bolt lock. I am going to fit ...
MyDisplayName's user avatar
0 votes
1 answer

Did not find fingerprint sensor :( Arduino Mega 2560 Adafruit Fingerprint Sensor

I'm getting the following error when I try to enroll fingerprints using the Arduino Mega 2560 microcontroller along with a Fingerprint Scanner: Did not find fingerprint sensor :( The exact devices ...
Wachaga Mwaura's user avatar
2 votes
2 answers

Is my Arduino dead?

I connected my Arduino Uno to an external power supply, but did not noticed the power supply was on 30 V, I saw the part in the picture smoking and immediately pulled the cable out of the Arduino....
Tom's user avatar
  • 23
0 votes
2 answers

Possible reason for broken Uno

Yesterday I wrote in a comment that I didn't break much, except a LED and a LED matrix. However, exactly yesterday I think my Uno gave up, since I cannot upload a sketch anymore (timeouts). For the ...
Michel Keijzers's user avatar
1 vote
2 answers

Can removing lines of code destroy a motor driver and make it catch fire?

I am making a pid line follower robot. So I was tinkering with code to optimize my line follower when i removed two lines of code unknowingly. As soon as I uploaded my code and started the line ...
Kirtik Soni's user avatar
7 votes
1 answer

How to control a Nema 17 stepper motor with an arduino? (too much current / heat)

I am trying to control a Nema 17 motor with a L298n dual bridge and an Arduino Mega. My wiring is from this Instructable:
ce_guy's user avatar
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1 vote
1 answer

Solar Power Inside a Car

I plan on making an Arduino project for reminding a parent to take a child from a car. In order to power the project I though on using a solar panel. Since I can't rely on having solar power all the ...
Ido Ran's user avatar
  • 149
1 vote
1 answer

Is it safe to power the Uno with 18v?

So I'm aware the Arduino Uno can take 6-20 volts, with a recommended voltage of 7-12. But I have an unregulated 12v power adapter, which puts out about 18v with no load. Most of the time the Arduino ...
Nateowami's user avatar
  • 113
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1 answer

My Arduino is heating up

I am working on a simple Arduino project where I am controlling 5 TowerPro servos. I read that each takes up 2.2 V each so that means the Arduino can only handle about 2 , if using 5V. So far Ive ...
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1 vote
1 answer

Dimming 6W (24V DC 0.25A) LEDs using Arduino

I want to dim 24 LEDs which are powered by a transformer outputting 24V 6W at 0.25A I am worried about temperatures, especially considering the circuit has to stay on for several hours keeping the ...
Martin's user avatar
  • 119
15 votes
3 answers

Why is the regulator very hot?

We have an LED strip connected to output 6 and is powered by the Uno board itself. Shouldn't be drawing too much current, only have 10 elements on the LED strip. While this LED strip is connected to ...
Chris O's user avatar
  • 339