Re: IR sensor query
From: CFoley1064 (cfoley1064_at_aol.com)
Date: 09/28/04
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Date: 28 Sep 2004 01:52:27 GMT
>Subject: IR sensor query
>From: sandeepanand@iitb.ac-dot-in.no-spam.invalid (sandeepanand)
>Date: 9/26/2004 6:00 AM Central Daylight Time
>Message-id: <4156a14f$1_2@127.0.0.1>
>
>hi
> I m working with 38 Khz IR sensor . I dont know how to supply
>such a frequeny using IR LED, can any body help me (ckt required)
>
>
>thanks
VCC VCC VCC
+ + +
| | |
.-. | |
| | .----o---o---.
27K| | | 8 4 |
'-' | | VCC
| | | +
o-----o 7 | ~ |
| | | ___ ~ |
.-. | 3 o-|___|--|<----'
| | | 555 |
4.7K| | | |
'-' .--o 6 |
| | | |
o--o--o 2 |
1nF | | |
or --- | 1 5 |
--- '----o---o---'
.001uF| | |
=== === ===
GND GND GND
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de
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