My Arduino doesn’t work when I connect it to the temperature sensor

Other Hardware Sensors
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I connected temperature sensor LM35 to the board for the first time and I even couldn’t upload the code. When I connected it to a computer the ON LED lights up but then turns off.

And I’m sure that I connected it correctly. I checked it a million times. I also tried to change 5V and ground and then Arduino turned on. But it doesn't correct if I follow instructions on how to connect the temperature sensor.
I’d be grateful for a respond

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Welcome to the forum

You started a topic in the Uncategorised category of the forum

Your topic has been moved to a relevant category. Please be careful in future when deciding where to start new topics

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Seeing the pic of your board, I can see there is a driver IC different from the original Arduino UNO. It is either FT232 or CH340. Please check the name of the driver IC. You will need to download the driver software accordingly.

Here is also an Arduino UNO Pinout configuration guide that you may find helpful.

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If you reversed the 5V and GND wires, you probably destroyed the LM35 and may have damaged the Arduino. With the LM35 disconnected, will the Arduino start up and run the blink.ino program?

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The Arduino started up and run the blink.ino program when I disconnected the sensor.

I might have damaged the sensor but why it didn't work when I connected it even before I reversed 5v and gnd…

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I think that the main problem is with how I connected the sensor because I even can’t run the program

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There are counterfeit LM35s on the "bargain" markets, where did you buy yours? If you hold the LM35 with the flat side facing you and pins down, the +5V pin is on the left, GND pin on right and output pin in center. Do you have meter?

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I got the sensor with an Arduino kit (this board too). I don't have a meter😞. I connected this sensor as you described flat side facing me (gnd right, 5V left)
I think that I should buy a new sensor…

Maybe my sensor isn’t original. On the flat side is written 62AB LM35 DZ

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Buy it from a reputable supplier like DigiKey, Mouser, RS, etc.
PS: Buy more than 1. :grin:

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Thanks a lot for the help☺️

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Forget about the LM35. There are much better and easier to use sensors out there.
The DS18B20 is one of them.
Leo..

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