Ultrasonic ranger

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The iTriangle - Ultrasonic ranger is a non-contact distance measurement module that works at 40 KHz. When a pulse trigger signal with more than 10 uS is provided through the signal pin, the module will issue 8 cycles of 40 kHz and detect the echo. The pulse width of the echo signal is proportional to the measured distance according to the formula: distance = echo signal high time * Sound speed (340 m/s)/2. The Ultrasonic Ranger's TRIG and ECHO signal share 1 SIG pin.

Do not hot plug the ultrasonic ranger, otherwise the sensor will be damaged. The measured area must be no less than 0.5 square meters and smooth.

Specifications

Parameter Value/Range
Operating voltage 3.2~5.2 V
Operating current 8 mA
Ultrasonic frequency 40 kHz
Measuring range 2–350 cm
Resolution 1 cm
Output PWM
Size 50 x 25 x 16 mm
Weight 13 g
Measurement angle 15°
Working temperature -10~60 °C
Trigger signal 10 uS TTL
Echo signal TTL
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