Postby FRANCISCO2020 » Tue Jan 03, 2023 10:41 am
Some things you can check:
Make sure you are connecting the sensor to the corresponding pin. In this case, the sensor is connected to pin 2.
Be careful not to confuse the count of pin numbers, with the actual In / Out assigned to each pin.
Verify that you are using the analogRead() function correctly. This function takes one argument which is the pin number to which the sensor is connected. In this case, the argument is 2.
Make sure the sensor is getting enough power. If you are using an ESP32 board, make sure it is connected to a suitable power source.
Verify that the sensor is connected correctly. Make sure the cables are firmly connected to the sensor and the board.
If the sensor continues to give incorrect values, it could be damaged or defective. In this case, you could try another sensor to see if the problem is with the sensor or some other component.