Something wrong with the circuit. 10K resistor and LDR should be in series, with Vcc and gnd on two sides and the mid point should be the sensor point. If you just connect the module to arduino, you get only O value. If you interchange ground and signal, it works.
Hello. The circuit in the video is OK but the problem (as I can see in my KY-018) is a wrong pin identification. S pin and Negative pin should be swapped. Thank you from The Smoke City.
Something wrong with the circuit. 10K resistor and LDR should be in series, with Vcc and gnd on two sides and the mid point should be the sensor point. If you just connect the module to arduino, you get only O value.
If you interchange ground and signal, it works.
Hello. The circuit in the video is OK but the problem (as I can see in my KY-018) is a wrong pin identification. S pin and Negative pin should be swapped. Thank you from The Smoke City.
hi can u pls upload sketch i am using that sensor
Your drawing is wrong , Please correct it , S &G shall be swapped ,Then
will be OK