Infrared Detection

modkil

Um i was working on a javelin implementation of the boe's ping and ir object avoidance program and upon checking the api for the freqout, the max is 12 KHz, and the ir is at 38500 Hz, any tips/ aid on how to do this?

Thanks in advance.

Peter Verkaik

Checkout the classes for the JavelinBot:
http://tech.groups.yahoo.com/group/JavelinCode/files/Javelin%20Stamp%20IDE/lib/JBot/

There are IR detect classes and explanotary texts.
Note that the pictures in the pdf files are missing.
You can use the Robotics files (the javelinbot files are reworked robotics texts)
to get the pictures if necessary.

regards peter

Peter Verkaik

Two threads regarding IR:
http://forums.parallax.com/showthread.php?p=578038
http://forums.parallax.com/showthread.php?p=631354

regards peter

modkil

Thank you for your reply, though the example in the javelinbot seemed a bit overkill for me, it was a bit late when i read the threads, but anyways, here is my code for BOE roaming with ping and IR, ping mount servo included.

modkil

Oh, the above file has the turn angle wrong here is the updated file

Thanks to the Javelin, servo movements are more " synchronized" than a basic stamp version

Peter Verkaik

Thanks.
I added some documentation regarding connections.
Please check if these are correct.

regards peter

modkil

Ok combining what you added with an updated code( ping servo wasn't turning fully) and adding a resistor to the ir detector.

Note: because the 38.5 khz, approx. is not a harmonic frequency,but a direct pwm, the ir's are much more sensitive than with a basic stamp, gives about a 5-8cm for me

Post Edited (modkil) : 6/26/2009 6:01:58 PM GMT