Ultrasonic ranger
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
WIKI iTriangle
