Ultrasonic module [Temp compensation]+System Board+Program+Schematic

Ultrasonic ranging display module, STC microcontroller system board, complete series of modest capacity of 51.

Features:

• The display module is equivalent to a small system board microcontroller, use STC10F04, completely modest capacity of 51 single-chip, direct download with serial debug circuit 232, a IO port output pins, key features, the three digital display.
• The direct use of our ultrasonic ranging module can measure the distance, you can set the alarm distance.
• With DS18B20 temperature compensation circuit (ok if not connect DS18B20)
• The system can provide ranging program can display board schematic.
• Wide voltage DC :5-12V
• The module can use this system shows a lot of programs to download to facilitate debugging.
• Plate size: 44 * 44 mm

Package Includes

• Ultrasonic Ranging Module x1
• System Board x1

Program and Schematic Download

Ultrasonic Ranging Detector Module HC-SR04

Product features:

Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact
measurement function, the ranging accuracy can reach to 3mm. The modules
includes ultrasonic transmitters, receiver and control circuit. The basic principle
of work:
(1) Using IO trigger for at least 10us high level signal,
(2) The Module automatically sends eight 40 kHz and detect whether there is a
pulse signal back.
(3) IF the signal back, through high level , time of high output IO duration is
the time from sending ultrasonic to returning.
Test distance = (high level time×velocity of sound (340M/S) / 2,

Wire connecting direct as following:

•  5V Supply
•  Trigger Pulse Input
•  Echo Pulse Output
•  0V Ground

If you are sourcing a ultrasonic ranging module , the HC-SR04 is good choose . Its stable performance and high ranging accuracy make it a popular module in electronic market .

Compared to the Shap IR ranging module , HC-SR04 is more inexpensive than it . But it has the same ranging accuracy and longer ranging distance.

Specifications:

• power supply :5V DC
• quiescent current : <2mA
• effectual angle: <15�
• ranging distance : 2cm – 500 cm
• resolution : 0.3 cm
• PCB and sensor color may change from time to time

There are 4 pins out of the module : VCC , Trig, Echo, GND . So it’s a very easy interface for controller to use it ranging. The all process is : pull the Trig pin to high level for more than 10us impulse , the module start ranging ; finish ranging , If you find an object in front , Echo pin will be high level , and based on the different distance,it will take the different duration of high level. So we can calculated the distance easily :

Distance = ((Duration of high level)*(Sonic :340m/s))/2

finally , look at the back of the module .All of the chip in the module have been burnish , maybe the author want to prevent the designed from plagiarism. But ultrasonic ranging module is nearly the same principle, so it’s not hard to speculated that the role of the chip � I’m sure at least one 74series chip on it ; ) . It is not a difficult task to crack it , but ... it’s at so low a price , even cheaper than your copy .

Deatailed Datasheet Download from Here!
Test C programm Download from Here!

Arduino Ultrasonic Sensor GH-311

1.Specification：

• Voltage : 6-12V(DC)
• Current : max 2mA
• Output Signal : 0-5V (Output high when obstacle in range)
• Sentry Angle : max 15 degree
• Sentry Distance : 2-8000mm
• Pin : 3pin

2.Usage：

• Supply module with 6-12V, the output will be 5V while obstacle in range, or 0V if not.
• The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules,
• Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation ï¼›if not, then power again.
• Module Working Principle:
• (1) Adopt IO trigger through supplying at least 10us sequence of high level signal,
• (2) The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal,
• (3) If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving.
• Test distance = (high level time * sound velocity (340M/S) / 2,

3.Advantage:

• Simple，easy to adopt in system ; Beam angle to avoid disruptions;Endurable.

4.Notice:

• This module can not be used for distance measurement.

Ultrasonic Sensor 16mm Diameter R/T in one body

This auction is for one pcs of 16mm R/T ultrasonic Sensor

Basic Ultrasonic Sensors, interchangeable, suitable for both transmit and receive. Excellent performance specifications and reliable life-time performance. Ideal for use in alarm systems and object detection.

Features

• Ideal for use in Beam Detection Systems
• Sensitivity: >-65dB
• Nominal Frequency: 40kHz
• Maximum Driving Voltage: 20Vrms
• Operating Temperature: -20oC to +70oC
• Dimensions: 16.2mm Diameter, 12.2mm High excluding pins, Pins - 10mm High

Datasheet Download

Serial Ultrasonic Module: JSME007TX

We have a very cost-effective Ultrasonic Ranging Module :HC-SR04, but it need you to trigger the ranging and calculated the distance yourself.

Here is a more easy use serial ultrasonic module JSME007TX. It will auto output the distance information via serial port after power on, you don't need to do any trigger and calculated, just need to read the serial pin and get the distance information.

Specifications:

• power supply :5V DC
  
• quiescent current : <15mA
  
• effectual angle: <15�
  
• ranging distance : 2cm – 350 cm
  
• resolution : 0.3 cm
• Output cycle : 50ms
• Baud Rate : 9600

Output frame format （4Bytes）

• 1st Byte : 0xFF (Start bit, Fixed value)
• 2ed Byte: H_Data (High 8 bit of the distance)
• 3rd Byte: L_Date (Low 8 bit of the distance)
• 4th Byte: Check Sum (0XFF+H_DATA+L_DATA=SUM, Check SUM is the low 8 bit of the SUM)

Basic Ultrasonic Sensor 12mm Diameter Rx Tx one Pair

This auction is for one pair of 12mm Rx Tx ultrasonic Sensor

Compact Ultrasonic Sensor suitable for dual use, with high-performance characteristics. Standard operating frequency and good sensitivity. Ideal for use in range measurements, robot applications, alarm sensors, etc.

Features

• Excellent Directivity and Sensitivity
• Detection Range: Up to 12m
• Nominal Frequency: 40kHz
• Operating Temperature: -30oC to +85oC
• Dimensions: 12mm Diameter, 10mm High excluding pins, Pins - 5mm High

Basic Ultrasonic Sensor 16mm Diameter Rx Tx one Pair

This auction is for one pair of 16mm Rx Tx ultrasonic Sensor

Basic Ultrasonic Sensors, interchangeable, suitable for both transmit and receive. Excellent performance specifications and reliable life-time performance. Ideal for use in alarm systems and object detection.

Features:

• Part number：TCT40-16R/T(Diameter 16mm）
  
• Frequency（KHz）：40KHz
• Transmit sound pressure at10V（0dB=0.02mPa）：≥117dB
• Receive sensitivity at 40KHz (0dB=V/ubar)：≥-65dB
• Electrostatic capacity at 1KHz,<1V (PF)：2000±30%
• T is for Transmit，R is for receive

Datasheet Download