Ultrasonic Flow Sensor Arduino
Therefore we can get the distance from the ultrasonic sensor by using two arduino s pins.
Ultrasonic flow sensor arduino. One pin is connected to trig pin to generate 10µs pulse to trig pin of the sensor. The ultrasonic pulses collide an object and leaves in the other direction the echo terminals receives the ultrasound pulses and the sensor calculates the distance based on the time of the pulses. This economical sensor provides 2cm to 400cm of non contact measurement functionality with a ranging accuracy that can reach up to 3mm. Ultrasonic sensor hc sr04 is a sensor that can measure distance.
When the water flows through the rotor rotor rolls and the speed of it changes with a different rate of flow. The water flow sensor consists of a plastic valve body a water rotor and a hall effect sensor. Arduino ultrasonic sensor arduino s pins can generate a 10 microsecond pulse and measure the pulse duration. Each hc sr04 module includes an ultrasonic transmitter a receiver and a control circuit.
Circuit for controlling a water flow sensor using arduino mega arduino circuit for measuring the amount of water flowing through a pipe using arduino board. It emits an ultrasound at 40 000 hz 40khz which travels through the air and if there is an object or obstacle on its path it will bounce back to the module. The hc sr04 is an ultrasonic ranging module. Connect trigger to digital pin 7 on your arduino board.
There are four pins on the hc sr04. In this project use the yf s201 1 2 inch water flow sensor to measure the water flow rate l min and display it on an lcd. The ultrasonic sensor sends 8 pulses of 40khz via the trig terminals inaudible to humans it s ultrasounds. You can watch the video of the design here.
In this tutorial you will learn how to use one water flow sensor with an arduino board. The ultrasonic sensor has four terminals 5v trigger echo and gnd connected as follows connect the 5v pin to 5v on your arduino board.