iDropper LED Comms Mitsubishi

[sswcharlie]

HI

Has anyone had any success in using the iDropper etc for use as a RFID replacement ?

Thks
Charlie

 

[MFB]

Not me but this looks interesting...www.merl.com/papers/docs/TR2003-35.pdf

 

[kranenborg]

Hello,

This has to some extent been covered in the following link where hippy did make a start at coding a simple bi-directional protocol (although it is not a complete LEDCOMM protocol): http://www.picaxeforum.co.uk/showthread.php?t=5892

I have the impression that Adam Greig did it in a simpified way for the Arduino, see the following links:
1) A video: http://www.youtube.com/watch?v=NDTR0-qmVwc
2) The code that implements it: https://randomskk.net/u/code/LEDcomms.html

I believe that his code does not implement LEDCOMM completely either, it only shows that the LEDs recognise each other and transmit a sign to the other Arduino that a button has been pressed causing the other Arduino's led to get lit.

You may also find the following link inspirational (with a link to the code used which apparently implements LEDCOMM fully, maybe something for a fast X2 ?): http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2006/bcr6/final_report/index.html

Hope this helps a bit: always wanted to do it myself, but never came beyond collecting the info presented here ...

/Jurjen

 

[MFB]

Unless you have a high volume cost critical application, I think the IRDA standard would be a better option because it offers more range and higher data rates.