special mini ultrasonic sensor, useful sensors

Ultrasonic sensor moudle Low cost, small size, switching signal output For alarm system, proximity switch etc.

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Ultrasonic sensor

1.TU-001 Ultrasonic sensor consists of a single transmit & receiving sensor, working with the application circuit, it can detect moving or static obstacle, and the distance value can be set, if the detected distance less than this setting value, it will output a digital signal to turn on the LED, otherwise it will output a digital signal to turn off the LED. This digital signal can control a relay, buzzer directly, or connected to a alarm system to active a alarm or action also.

2. Applications

    Alarm system, proximity switch etc.

3. Parameters

ITEMS	PARAMETER	TOLERANCE	NOTE
VOLTAGE	1.Low voltage version   DC 5-7V 2. Normal voltage version DC 8-16V
FREQUENCY	40KHZ	±1KHz
WORKING CURRENT	20mA
DETECTING RANGE	0.2---1.0M	±2cm
SIGNAL OUTPUT	0 OR 1		Digital/Switch  Signal

4. Function

A. Input Pin assignment:  

Pin1: Vcc, Pin2: LE ,  Pin3: Gnd

B. To set the alert distance

After connecting Vcc and Gnd to power, Keeping the sensor aiming at the obstacle and to be a fixed distance, then connecting the LE wire to Vcc, the LED will flash three times , at last remove the blue wire from Vcc.

The system will remember this setting value to a EEPROM chip.

  

C. Detecting obstacle

If the system detects a distance less than this setting value, it will output a digital signal to turn on the LED, otherwise it will output a digital signal to turn off the LED.

This digital signal can control a relay, buzzer directly, or connected to a alarm system to active a alarm or action also.

special mini ultrasonic sensor, useful sensors