User`s Manual September 2012
Contents
1. ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor Cytron echnologie User s Manual V1 0 September 2012 Infommation contained in this publication regarding device applications and the like is intandad through suggestion only and may be superseded by updates it ie your responsibility to ensure that your application meets with your Specifications No rapresenialien or warranty is given and no liability is assumed by Cytron Technolegies Incwporaied with respect io the accuracy or use of such information or infringement of patenis or other intellectual property rights arising from such use or otherwise Use of Cytron Tachnologies s products as critical companants in life support systems is mot authorized except with express writen approval by Cytron T chndlogies No licenses are conveyed implacily or otherwise under any intelectual propery nights Created by Cytron Technologies Sdn Bhd All Rights Reserved 1 ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor Index 1 Introduction 3 2 Product Layout 4 3 Product Specification and Limitation 5 4 Operation 6 5 Warranty 7 Created by Cytron Technologies Sdn Bhd All Rights Reserved 2 ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor 1 0 INTRODUCTION The HC SR04 ultrasonic sensor uses sonar to determine distance to an object like bats or dolphins do It offers excellent non contact range det2. a pulse of high 5V for at least 10us this will initiate the sensor will transmit out 8 cycle of ultrasonic burst at 40kHz and wait for the reflected ultrasonic burst When the sensor detected ultrasonic from receiver it will set the Echo pin to high SV and delay for a period width which proportion to distance To obtain the distance measure the width Ton of Echo pin Time Width of Echo pulse in uS micro second e Distance in centimeters Time 58 e Distance in inches Time 148 e Or you can utilize the speed of sound which is 340m s Initiate Echo back 1 pulse width corresponds to distance LOuS TTL to pignal pin about 150uS 25ms 38ms i no obstade Signal Formula pulse width jub So dishence fon pulse wiih fu 148 dikis inch Internal Uitrasenic Transducer will ictus 8 40kHz pulse Note e Please connect the GND pin first before supplying power to VCC e Please make sure the surface of object to be detect should have at least 0 5 meter for better performance Created by Cytron Technologies Sdn Bhd All Rights Reserved 6 ROBOT HEAD to TOE Product Users Manual HC SRO4 Ultrasonic Sensor 5 0 WARRANTY e Product warranty is valid for 6 months e Warranty only applies to manufacturing defect e Damaged caused by miss use is not covered under warranty e Warranty does not cover freight cost for both ways Prepared by Cytron Technologies Sdn Bhd 19 Jalan Kebudayaan 1A Taman Univer
3. ection with high accuracy and stable readings in an easy to use package From 2cm to 450cm or 1 to 16ft It operation is not affected by sunlight or black material like Sharp rangefinders are although acoustically soft materials like cloth can be difficult to detect It comes complete with ultrasonic transmitter and receiver module Features e Power Supply 5V DC Quiescent Current lt 2mA Working Currnt 15mA Effectual Angle lt 15 Ranging Distance 2cm 400 cm 1 13ft Resolution 0 3 cm Measuring Angle 30 degree Trigger Input Pulse width 10uS Dimension 45mm x 20mm x 15mm Created by Cytron Technologies Sdn Bhd All Rights Reserved 3 ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor 2 0 PRODUCT LAYOUT VCC 5VDC Trig Trigger input of Sensor Echo Echo output of Sensor GND GND Practical fest of perfomance Besi in 30 degree angle Created by Cytron Technologies Sdn Bhd All Rights Reserved 4 ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor 3 0 PRODUCT SPECIFICATION AND LIMITATIONS Parameter Max EES o e Operating Voltage Quiescent Current E Working Current Ultrasonic Frequency Created by Cytron Technologies Sdn Bhd All Rights Reserved 5 ROBOT HEAD to TOE Product Users Manual HC SR04 Ultrasonic Sensor 4 0 OPERATION The timing diagram of HC SR04 is shown To start measurement Trig of SRO4 must receive
4. siti 81300 Skudai Johor Malaysia Tel 607 521 3178 Fax 607 521 1861 URL www cytron com my Email support cytron com my sales cytron com my Created by Cytron Technologies Sdn Bhd All Rights Reserved 7
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