Datasheet

MaxBotix

Inc.

Patent 7,679,996

ParkSonar

-EZ Series

Page 2

Web: www.maxbotix.com

PD13426g

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

ParkSonar-EZ Pin Out

Pin 1-BW - Unused, leave disconnected or connect to circuit common ground.

Pin 2-PW - Digital Proximity Logic, outputs a High/Low logic voltage level depending on proximity detection. High

means an object has been detected in the detection zone. Low means no object is present. There is a ~10 second delay on

acquiring targets and a ~5 second delay for releasing a target once detected. This hysteresis improves sensor reliability.

Pin 3-AN - Unused, leave disconnected or connect to circuit common ground.

Pin 4-RX - This pin is internally pulled high. Leave the pin disconnected or hold the pin high for proximity information.

Hold low to stop all sensor activity. Upon returning to a high state, the sensor will begin ranging normally and reinitiate

the 10-second delay for acquiring targets.

Pin 5-TX - The TX output delivers asynchronous serial with an RS232 format, except voltages are 0-Vcc. If a target is

detected at 8 inches the output appears as follows: “R008 P1<carriage return>”. The output is an ASCII capital “R”,

followed by three ASCII character digits representing the range in inches up to a maximum of 255, followed by an ASCII

space and the ASCII character “P”, follow by one ASCII digit “1 or 0” corresponding to the proximity information,

followed by a carriage return. Range information is provided for reference. Although the voltage of 0-Vcc is outside the

RS232 standard, most RS232 devices have sufficient margin to read 0-Vcc serial data. If standard voltage level RS232 is

desired, invert, and connect an RS232 converter such as a MAX232.

Pin 6 - +5V- Vcc – Operates on 2.5V - 5.5V. Recommended current capability of 3mA for 5V, and 2mA for 3V. Please

reference page 4 for minimum operating voltage verses temperature information.

Pin 7 - GND - Return for the DC power supply. GND (& Vcc) must be ripple and noise free for best operation.

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Mechanical Dimensions

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Sensor Minimum Distance

The minimum reported distance is 6 inches (15.2 cm) for the range information provided on the serial output of the

sensor.

Range “0” Location

The ParkSonar-EZ sensor reports the range to distant targets from the front of the sensor as shown in the diagram below.

Target detection has been characterized in the sensor beam patterns.

The range is measured from front of the sensor.