Subject:
|
Re: IR Collision avoidance
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Fri, 28 Feb 1997 22:54:30 GMT
|
Original-From:
|
MAR ERICSON <mar@cooper.*spamless*edu>
|
Viewed:
|
1555 times
|
| |
|
|
>
> 220 Ohm
> o--------/\/\/\--------------+-------------+---------------+
> J7 o (LED) (LED) (LED)
> o----------------------------+-------------+---------------+
What are the three LED's for?
|
|
Message has 1 Reply:
 | | Re: IR Collision avoidance
|
| (...) Those are the IR LED's - the one's that transmit the IR light that the receiver sees. Also, while I'm at it, I found out that the diagram above isn't completely accurate (I drew it from memory). The circuit I really use is like this: (...) (28 years ago, 28-Feb-97, to lugnet.robotics.handyboard)
|
Message is in Reply To:
| | Re: IR Collision avoidance
|
| The Handyboard has a circuit (U7a, R4, C6) that generates a 38KHz signal. That drives an amplifier that then goes to J7, the IR LED output. If you hookup an IR LED to this jack (with a series resistor) then when you turn on TOC2 using ir_xmit_on() (...) (28 years ago, 24-Feb-97, to lugnet.robotics.handyboard)
|
6 Messages in This Thread:
  
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
This Message and its Replies on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
