Data Sheet

Sensor Documentation Modern Robotics, Inc.

Version 1.4.3 29

Function

0x00

Sensor Firmware Revision

0x01

Manufacturer Code

0x02

Sensor ID Code

0x03

Not Used

0x04

Direction Data – 1200Hz

0x05

Signal Strength – 1200Hz

0x06

Direction Data – 600Hz

0x07

Signal Strength – 600Hz

0x08/0x09

Left Side Raw Data – 1200Hz (lsb/msb)

0x0A/0x0B

Right Side Raw Data – 1200Hz (lsb/msb)

0x0C/0x0D

Left Side Raw Data – 600Hz (lsb/msb)

0x0E/0x0F

Right Side Raw Data – 600Hz (lsb/msb)

The frequencies are channels that the IR Seeker V3 uses to tell the difference between

IR emitting sources. Both 600Hz and 1200Hz IR signals may be present at the same time

which results in two identifiable IR sources.

Heading:

The heading value gives an indication of the source direction. If the value is negative,

then the source is to the left of center. If the value is positive, then the source is to the

right of center. The magnitude of the values gives an indication of how far off the axis

the source is. If the value is zero, then the source is in the center of the field of view.

Strength:

The strength value represents the magnitude of the receive signal. If this value is set to

0, it means that not enough IR signal is available to estimate the heading value. The

value of the strength will increase as an IR source approaches the sensor.