Author Topic: IR recievers for line follower?  (Read 888 times)

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Offline XyverTopic starter

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IR recievers for line follower?
« on: May 09, 2010, 02:45:24 PM »
Can you use normal photoresistors (like the ones in the 50$ robot) to detect IR light?

Offline Soeren

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Re: IR recievers for line follower?
« Reply #1 on: May 10, 2010, 01:46:52 AM »

Response will be only a few percent of what you will get with visible light if any at all. The results will vary with different LDRs, but none are really useable for IR.
Phototransistors often have their peak sensitivity at IR wavelengths, so would be a much better choice.

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives


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