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Electronics => Beginners => Topic started by: jbs on May 20, 2020, 12:19:55 pm

Title: Calibrate CNY70 reflective optical sensor
Post by: jbs on May 20, 2020, 12:19:55 pm

Hi,

I have a CNY70 sensor which I use in my project.

I want the sensor to give out the same value when I hold my finger 1 cm in front of it. However, depending on whether I use it during the day (daylight) or during the evening (artificial light) it gives me different readings.

How can I resolve this problem?

Thanks,
Joël