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.