Get Schematic Ultrasonic Sensor Arduino Background. It measures distance by sending out a sound wave at a specific frequency and listening for that sound wave to bounce the trig pin is where the arduino sends the signal to start the ultrasonic pulse. An ultrasonic sensor is a device that can measure the distance to an object by using sound waves.
In the previous post, we have seen let me first summarize the working of ultrasonic sensor again.
We provide a schematic diagram on how to wire the ultrasonic sensor, and an example sketch to use with the arduino. This economical sensor provides 2cm to 400cm of refer the schematics for more clarity on the connections. Support for more than one ultrasonic sensor. Please note, circuit diagram at 0:56 should be: