Winsen ZE25-O3 Sensor - Arduino uno Connection

Other Hardware Sensors
1

Hi,

I bought a Winsen ZE25-O3 brand gas sensor.
I want to use it with Arduino uno.
Pin description is written on the datasheet of the sensor (I uploaded photo.).

I downloaded the library from the link.

Now the pin matches will be like the photo I uploaded the link below, right?

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2

Now the pin matches will be like the photo I uploaded the link below, right?

No. The UART pins are only for 0-3V but the UNO uses 5V on them. This may have damaged your sensor.

As you failed to post your code we cannot help you any further.