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TirthankarMukherjeePIC
09-21-2007, 01:30 PM
TRI is selling this module for micromouse ... object detection .. and the are demanding a range of 3-15 cm !! .. and it wouldnt be hampered with stray IR radiations ...
http://triindia.co.in/shop/product_info.php?cPath=37&products_id=86

can this be achieved .. can a IR pair be used and the IR led be modulated to provide such a nice range with analog o/p ? I guess how .... can any one explain me ?? I am puzzled !

a7400
09-21-2007, 04:01 PM
hey tirthankar

the module has an onboard active filter circuit, which filters out the ambient light.

TirthankarMukherjeePIC
09-21-2007, 11:52 PM
hey tirthankar

the module has an onboard active filter circuit, which filters out the ambient light.

yes I also understand that much ... but ow it works ...plz explain it bro ...

orion
09-22-2007, 12:08 AM
The secret lies in the use of ultrabright red leds instead of regular low power IR leds...

Regards,

tpsbpl
10-26-2007, 11:57 PM
what about power consumption

orion
10-27-2007, 11:58 AM
its 25mA at 5volts per sensor

Regards,