Comments: QRD1114 Optical Detector Hookup Guide

Pages

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Can this be used on a digital pin? In my application, there will be either a) nothing within its sensing range (or approximately 1m away) or b) a dark object within (a fairly constant) 0.76 cm

    The sensor must return <1.5V for state a. The sensor must return >3V in state b.

    I can breadboard this, but you might answer before then.

    • Hi there, it sounds like you are looking for technical assistance. Please use the link in the banner above, to get started with posting a topic in our forums. Unfortunately, I am not quite sure I understand your question, but our technical support team can dive into the details and will do their best to assist you.

  • Can someone explain the purpose of the * 5.0 / 1023.0? I assume the 5.0 is the 5v Vcc, is the 1023 due to a 1024 steps in the ADC?


If you've found a bug or have other constructive feedback for our tutorial authors, please send us your feedback!