Description
وحدة مستشعر قياس المسافة عالي الدقة
تتيح وحدة قياس المسافة بالموجات فوق الصوتية US-100 قياس المسافة دون تلامس من 2 سم إلى 4.5 متر، مع نطاق جهد دخل واسع من 2.4 إلى 5.5 فولت، واستهلاك طاقة ثابت أقل من 2 مللي أمبير. تعتمد نتائج القياس على معايرة مستشعر درجة الحرارة الخاص بها، وتتضمن منافذ GPIO ومنافذ تسلسلية وغيرها من أوضاع الاتصال المتعددة، بالإضافة إلى نظام مراقبة داخلي لضمان الاستقرار والموثوقية.
Descriptions:
US-100 ultrasonic ranging module can realize 2 cm ~ 4.5 m 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.
Parameter:
Working voltage DC 2.4V~5.5V
Static current 2mA
Working temperature -20~+70℃
Output way Level or UART (jumper cap choice)
Induction Angle Less than 15°
Detection range 2cm-450cm
Detecting precision 0.3cm+1%
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.
The wiring way:
VCC, trig (control terminals), echo (receiver), GND
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