Data Sheet

Page 8

Web: www.maxbotix.com

PD11721l

MaxBotix

Inc.

Patent 7,679,996

HRLV-MaxSonar

™

Series

MaxBotix Inc., products are engineered and assembled in the USA

Operations and Timing Continued

Real-Time Operation - Triggered

Real-time or triggered operation allows users to take advantage of a few functions unavailable during free run mode. By

operating in triggered mode, a maximum refresh rate of 10Hz can be achieved. This can be valuable for instance, as

triggered operation allows users to range targets moving away from or closer to the sensor faster than 240mm/s.

Users can enter and remain in the Real-time or Triggered Operation by making sure that after each range cycle, the

voltage level on Pin 4 is set low. After the sensor has completed the last reading, then the voltage on Pin 4 is brought

high. This starts a brand new range cycle and the HRLV-MaxSonar-EZ will output the most recent range data without

filtering. Please reference the Real-time Triggered Operation timing diagram for full implementation details.

Readings during triggered operation are less accurate than the 2Hz filtered readings by about +/- 5-mm. Also, because the

range readings are not filtered, noise tolerance can be greatly reduced. Take care to make sure that only one sensor is

sampling range at a time.