Object Counter Using Infrared Sensor

[syakirin]

I am currently a final-year student doing my project and I need help with it. I want to use myRIO SHARP GP2Y0A21YK0F Infrared Proximity Sensor to count the objects while reading data. How do I achieve this?

[Henrik_Volkers · Accepted solution]

First connect the sensor to an anlog input and supply it with 5V

Depending on counting speed and object length or pulse length , choose a meaningfull samplerate.

Now you can capture the voltage reading.

If you look at the datasheet you can expect a voltage waveform for your object. (Better choose a min distance to avoid the foldback at the near end 😉 )

depending on the needed samplerate and your setup you now just have to use the threshold detection or do a window detection, like has to be higher than v_h and then lower than v_l to have an item counted.

[syakirin]

Thanks! 😊

[syakirin]

Hi, can you show me the VI of it? I would be gladly appreciate it!

[syakirin]

Hi, Henrik

I don't understand what you mean by "counting speed and object length"...

Can you give me the VI snippet on it?

Thanks!