Reflective-Photointerrupter(LTH-1550).jpg

Reflective Photointerrupter(LTH-1550)

Model No: ROB-00020

TK. 50.52

Availability: In stock

Quantity:

Category: Robotics Sensor

Supplier: Made in China

The LTH-1550 reflective object sensors consist of an infrared emitting diode and a NPN sillicon phototransistor mounted side by side on converging optical axis in a black plastic housing.

Question & Answer

Total 2 questions

Q: I tried to use it in a line follower. kept it 1cm above ground(resistor at receiver is 4.7k).At white & black surface it gives ADC value 185 &65 respectively(10 bit/0-1023 range). Is there a effective way to increase the difference. Questioned by khaledeeebuet, 02-Jul-2013

You can use a comparator IC. Answered by A.R, 02-Jul-2013 10:11 AM

u can also use higher resistor (i.e 100k or above) if that is a voltage divider circuit.That would give u better difference.although,op amp is better to avoid loading error Answered by abushuvom, 19-Sep-2013 16:13 PM

Q: this one is excellent. need more of these. will this product be available soon? Questioned by Ratul Khan, 11-Dec-2013

We are trying our best to import it ASAP.It may takes 2 weeks to 1 month. Answered by A.R, 11-Dec-2013 16:27 PM

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