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Unread 09-02-2004, 20:52
Dale(294engr]'s Avatar
Dale(294engr] Dale(294engr] is offline
Mentor/Sponsor since '98
FRC #0294 (Beach Cities Robotics)
Team Role: Engineer
 
Join Date: Jan 2004
Rookie Year: 1998
Location: Redondo Beach, CA
Posts: 92
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Re: Line tracking sensors - Wiring up?

Banner Sensors Note:

There are two types of Banner sensors

Visible (red LED)
P/N ..VN6. = visible = suitable for line tracking ~4"

IR (can't see)
P/N = IR = suitable for proximity sensing ~15"

Black/White each need the RC's built-in +5v 100K pull up in the digital IO port.
(else you see nothing - unterminated open collector)

else to test w/o IO port connection, connect ~5k-100k ohm resistor
from ea. W & B to +5V and use meter or scope to sense the output.

use Black: (+5v) high = off line, (~0v)Low = on line (same logic as IR rcvr)
use White: (+5v) high = on line, (~0v)Low = off line

There are LEDs on the front of the Banner sensors
that visually indicate the sensed state
that the Black/White communicate to the RC digital input.

Regards, Dale 294