IR proximity sensor ..........need help - Electronic Circuits Projects Diagrams Free

Prabul · 9th February 2006, 07:47 AM

It will be kind enough if someone can give me a simpleand good cicuit for
IR proximity detector(with out using micro controller or processor)

raitl · 9th February 2006, 11:49 AM

use the circuit in this topic: http://www.electro-tech-online.com/v...030&highlight= for detection, then hook up IR LED(s) to Microcontrollers PWM output(s) and blink them at 38kHz. That's about it.

If your uC doesn't have PWM, use a 555 timer or whatever you can think of

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9th February 2006, 07:47 AM	(permalink)
Prabul	IR proximity sensor ..........need help It will be kind enough if someone can give me a simpleand good cicuit for IR proximity detector(with out using micro controller or processor)

9th February 2006, 11:49 AM	(permalink)
raitl	use the circuit in this topic: http://www.electro-tech-online.com/v...030&highlight= for detection, then hook up IR LED(s) to Microcontrollers PWM output(s) and blink them at 38kHz. That's about it. If your uC doesn't have PWM, use a 555 timer or whatever you can think of __________________ Here...let me improve it for you! Puff of smoke ....oops...