SEN0001

SEN0001 Datasheet


URM37 V4.0 Ultrasonic Sensor SKU:SEN0001

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SEN0001 SEN0001 SEN0001 (pdf)
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URM37 V4.0 Ultrasonic Sensor SKU:SEN0001

URM37 V4.0 Ultrasonic Sensor

Contents
• 1 Introduction
• 2 Specification
• 3 PinOut
• 4 Tutorial

Button for RS232/TTL Choosing Test on Software Othere Setting address in EEPROM The factory default settings Three Measure Modes

PWM trigger mode Auto Measure Mode Serial Passive Mode Servo Rotation Reference Table
• 5 Protocol
• 6 Trouble shooting
• 7 More

Introduction

URM37 V4.0 Ultrasonic Sensor uses an industrial level AVR processor as the main processing unit. It comes with a temperature correction which is very unique in its class. URM37 V3.2 last version has already been a very good realization of ultrasonic switch and serial TTL and RS232 level optional , pulse output function, the module can also control a servo rotation to realize a spatial ultrasound scanner. On this basis we have to upgrade the function. URM37 V4.0, the current version
• Serial level selected from the skipped stitches to button, user can easily select RS232 or TTL-level output level output by pressing the settings after reboot

Specification
• Power
• Current <20mA
• Working temperature -10
• Detecting range 5cm-500cm
• Resolution 1cm
• Interface RS232 TTL , PWM
• Size 22mm x 51 mm
• Weight 25g

PinOut

NumLabel
1 VCC

Power input reference +5V
2 GND

Ground
3 NRST

Reset
4 ECHO

Measured distance presented by the Data Output 0-25000US by PWM pulse width, 1 CM / 50US representative
5 MOTO

Control the servo rotation angle
mode, when the detecting distance is smaller than a pre-set 6 COMP/TRIG
value, this pin pulls mode trigger input
7 DAC

Analog voltage output each 6.8mV represents 1 cm
8 RXD

RS232/TTL mode
9 TXD

RS232/TTL mode

Tutorial

Congratulations to you who bought our URM37 V4.0 Ultrasonic Sensor3, you now have the historical most powerful ultrasonic ranging module.

First we have to understand this module basic function, there are three modes:

PWM triggered measurement mode Automatically measure mode Serial passive measurement

Then it also supports:
• Simulation volume output proportional with measurement distance, 6.8mV/cm
• Temperature read
• Serial level choose TTL or RS232 level
• Internal EEPROM without losing data
• Serial EEPROM data read

The products have been conducted a set of rigorous tests by us, when you get your purchase, you can do some setting according to your demands, firstly, you may have to set the serial port-level or RS232 TTL level , then we can access to the module through the serial port, then set the range mode 0x02 writes data on the internal EEPROM address , after that, you can access to ultrasound module through MCU or PC.

Button for RS232/TTL Choosing

The vesy fisrt basic step to communicate with the model is to choose the serial level_TTL default or RS232.We step forward over the last version3.2 which by jumper, now we could do it by pressing the only one button on the board for 1 second, after the light turn off from state-on, release the botton.Repower again,he Indicator appears to flash like once long and once short -present TTL level output, once long and twice short flash presenting RS232 level.

Do not connect to TTL MCU when the output mode is set to RS232, doing so will permanently damage the unit.
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Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived SEN0001 Datasheet file may be downloaded here without warranties.

Datasheet ID: SEN0001 509040