US-100 Ultrasonic Distance Sensor 450cm with Temperature Compensation
US-100 ultrasonic ranging module can realize 2cm ~ 4.5m non-contact ranging function, with a 2.4 ~ 5.5 V of wide voltage input range, static power consumption less than 2 mA, bring their own temperature sensor calibration on the ranging results, and has GPIO, serial ports and so on many kinds of communication mode, inside take watchdog, stable and reliable.
Voltage: 3.3V – 5V DC
Static current: less than 2 mA
High level output: 5V
Lowe level output: 0V
Working temperature: -20~+70degrees
Output type: Level or UART (jumper cap choice)
Measurement/Induction Angle: no more than 15 degrees
Detection range: 2cm-450 cm
Detecting precision: 0.3cm+1%
Tx/trig (control terminals),
UART mode serial interface configuration 9600 baud rate, starting a one, and stop bits a, data bits, eight, and white parity checking, no flow control.
Method of use:
A control mouth hair a 10 US above the high level, can wait for high level output receiver mouth. A has an output can open timer time, when the mouth into a low power can be read at ordinary times timer values, where you for the ranging time, can calculate the distance. This will continue the cycle; can reach you move measurement value.
Module working principle:
(1) the IO trigger ranging, to at least 10 us high level signal;
(2) module automatically send eight 40 KHZ of square wave, automatic testing if it has any signals return;
(3) a signal to return to, through the IO output top level, the duration of the high level is from the launch ultrasonic returned to time. Test distance = (high level time * sound velocity (340 M/S))/2;
Tutorial for using it with Arduino:
1 x US-100 Ultrasonic Distance Sensor