US-016 Analog Voltage Output Dual Range Ultrasonic Distance Measurement Module High Accuracy board | Электронные компоненты и

US-016 Analog Voltage Output Dual Range Ultrasonic Distance Measurement Module High Accuracy board | Электронные компоненты и

Information download address: http://pan.baidu.com/s/1c08JuBQ

Description:US-016 is the only analog output on the market of ultrasonic distance measurement module, the output of the analog voltage and distance value is proportional to, Can be easily connected with other systems, US-016 stable and reliable, to provide technical support and 3 months warranty.

US-016Ultrasonic distance measurement module

1.  Overview

US-016Ultrasonic distance measurement module can achieve 2cm ~ 3m non-contact distance measurement function, the supply voltage of 5V, the working current of 3.8mA, support analog voltage output, stable and reliable. The module can be set to a different range according to the different application scenarios (the maximum measurement distance is 1m and 3m respectively); when the Range pin is left, the range is 3m.

US-016Can measure the distance into analog voltage output, the output voltage is proportional to the measured distance.

2.  The main technical parameters

The size of the module: 45mm * 20mm * 1.2mm. There are two mechanical holes with a radius of 1mm on the board, as shown in the following figure:

From left to right number 1, 2, 3, 4. They are defined as follows:

L 1Pin: Connect VCC power supply (DC 5V).

L 2Pin: Range: When the pin is high when the module is powered on, the range is 3m. When the pin is low when the module is powered on, the range is 1m. This pin has a pull-up resistor, and when the Range pin is left, the range is 3m.

L 3Pin: Analog voltage output pin (Out), analog voltage is proportional to the measured distance, the output range of 0 ~ Vcc.

L 4Pin: Connect the ground of the external circuit.

5.  Distance measurement principle

After the module is powered on, the system first determines the input level of the Range pin and sets a different range according to the input level status. When the Range pin is high, the range is 3m and the range is 1m when the Range pin is low.

Then, the system starts continuous ranging, while the distance measurement results through the analog voltage output in the Out pin. When the distance changes, the analog voltage will also change.

The analog voltage is proportional to the distance measured and the output range of the analog voltage is 0 to Vcc.

When the system range is 1m, the measurement distance is: L = 1024 * Vout / Vcc (mm). When the output voltage is 0V corresponds to the distance of 0m, the output Vcc corresponds to 1.024m.

When the system range is 3m, the measurement distance is: L = 3096 * Vout / Vcc (mm). When the output voltage is 0V corresponds to the distance of 0m, the output Vcc corresponds to 3.072m.

The relationship between the measured distance and the output voltage is shown in Figure 5.1

6.  Programmable programming range of 1m

Note: When power is applied, the Range pin needs to be set low.

Measurement, the ADC can use the ADC output voltage of the Out pin, according to the ADC value conversion measurement distance, the following formula can be used:

L = (A * 1024/2 ^N) *(Vref / Vcc), where A is the ADC value, n is the number of bits for the ADC, Vref is the reference voltage for the ADC, and Vcc is the supply voltage of US-016.

For example, when sampling with a 10-bit ADC and the reference voltage of the ADC is VCC, the measurement distance can be expressed as the ADC value. Example: When the ADC sample value is 345, the measurement distance is 345mm.

When the range is 1m, the Arduino rangefinder routine:

Unsigned int ADCValue;

Void setup ()

{

Serial.begin (9600);

}

Void loop ()

{

ADCValue = analogRead (0);

Serial.print ("Present Length is:");

Serial.print (ADCValue, DEC);

Serial.println ("mm");

Delay (1000); // delay 1S

}

7.  Programming for 3m range

Note: When power is applied, the Range pin needs to be left floating or set high.

Measurement, the ADC can use the ADC output voltage of the Out pin, according to the ADC value conversion measurement distance, the following formula can be used:

L = (A * 3072/2 ^N) *(Vref / Vcc), where A is the ADC value, n is the number of bits for the ADC, Vref is the reference voltage for the ADC, and Vcc is the supply voltage of US-016.

For example, when sampling with a 10-bit ADC and the reference voltage of the ADC is VCC, the measurement distance can be expressed as a value of 3 * ADC. Example: When the 10-bit ADC sample value is 400, the measurement distance is 3 * 400 = 1200mm.

When the range is 3m, the Arduino rangefinder routine:

Unsigned int ADCValue;

Void setup ()

{

Serial.begin (9600);

}

Void loop ()

{

ADCValue = analogRead (0);

ADCValue * = 3;

Serial.print ("Present Length is:");

Serial.print (ADCValue, DEC);

Serial.println ("mm");

Delay (1000); // delay 1S

• }