This ultrasonic sensor is very similar to the ultrasonic sensors which are found in cars. This Waterproof Ultrasonic Obstacle Sensor shows some important constructional advantages over the conventional sensors. It comes in two separate parts one being the transducer which is the sensing element and the other being the control board.
The module is capable of providing information of the objects between the distance range of 250 mm to 4500 mm. The great advantage of using this Waterproof Ultrasonic Obstacle Sensor is you can put the sensing element far away from all the control circuitry.
The basic working principle:
- Turn on TRIG Pin to 5V for at least 10uS
- The module will then automatically send 8 40KHz tones and automatically detect when the signal return after reflecting back from the object
- Upon detecting the signal, a high-level signal is outputted through the IO Pin ECHO. By keeping track of the time duration between transmitting and receiving the signal, the distance can be calculated. Distance = (Time to Receive Reflected Signal * speed of sound (340M/S)) /2
Wiring
+5V(positive)
Trig(control)
Echo(receive)
GND(negative)
Application :
- Horizontal distance
- Obstacle avoidance, automatic control
- Traffic control
- Security, industrial control
- Artificial intelligence, and research.
Features:
- Small size, easy to use.
- Low voltage, low power consumption.
- High accuracy.
- Strong anti-jamming.
- Integrated with wire enclosed waterproof probe, suitable for wet, harsh measurement occasions.
Package Includes :
1 x Waterproof Ultrasonic Obstacle Sensor, with 2.5m Separate Probe.
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