The water velocity depends on the pressure that forces the through pipelines. We have determined flow rate by a change in velocity of the water. Mathematical Calculation to Measure Flow Rate & Volume From these options, you can choose the Material Type, Dimensions, Quantity, Thickness, Solder Mask Color and other required parameters.Īfter filling all details, select your country and shipping method. You can now upload the Gerber File by choosing the Quote Now option. To do that visit the ALLPCB official website by clicking here. You can use this Gerber file to order high quality PCB for this project. You can simply download the Gerber File and order the PCB from ALLPCB at 1$ only.ĭownload Gerber File: IoT Water Flow Meter The Gerber File for the PCB is given below. Below is the front view and Back View of the PCB. The PCB for this project has been designed in EasyEDA online PCB making tool. You can use the custom-designed PCB for making the small Water Flow Meter board. I have assembled the circuit on Breadboard. The OLED Display works at 3.3V so it can be connected to 3.3V pin of Nodemcu. Similarly, I2C OLED Display SDA & SCL pins are connected to D2 & D1 of ESP8266 respectively. The sensor works at 5V & can be connected to Vin of ESP8266. In my case, I connected to GPIO2, i.e D4. Water Flow Sensor is a digital Sensor, so we can connect its output pin to any of the digital pins of ESP8266. Similarly using MQTT Protocol better wireless communication can be achieved.īut now let us see the IoT Water Flow Meter Circuit Diagram & Connection. You can switch to Blynk Application if you want immediate data. The same Flow Rate & Volume data can be sent to Thingspeak Server after an interval of 15 seconds regularly. The OLED Display will show Water Flow Rate & Total Volume of Water passed through the pipe. Now let us interface YF-S201 Hall-Effect Water Flow Sensor with Nodemcu ESP8266 & OLED Display. IoT Water Flow Meter using ESP8266 & Water Flow Sensor To learn more about this sensor, you can follow our previous guide here: Arduino & Water Flow Sensor Complete Hookup Guide Pulse frequency ( Hz ) / 7.5 = flow rate in L/ min The pulse signal is a simple square wave so its quite easy to log and convert into liters per minute using the following formula. You can make a basic IoT Based Water Flow Meter using this Sensor. To get better precision of more than 10%, a lot of calibration is required. This Sensor is cheaper and best but not the accurate one as flow rate/volume varies a bit depending on the flow rate, fluid pressure, and sensor orientation. Each pulse is approximately 2.25 milliliters. The water flow rate can be calculated by counting the pulses from the output of the sensor. There’s an integrated magnetic hall effect sensor that outputs an electrical pulse with every revolution. Inside the sensor, there is a pinwheel that measures how much liquid has moved through it. This sensor can be connected to the waterline as it has both inlet and outlet. This is an image of the YF-S201 Hall-Effect Water Flow Sensor. The component purchase link is given below. All the components can be easily purchased from Amazon. So we will use YFS201 Hall Effect Water Flow Sensor with ESP8266 & design simple IoT Based Water Flow Meter.įollowing are the components required for making this project. As a result, a low-cost water flow meter is required. There are so many Water Flow Sensors available in the market but are too expensive to use and afford. Therefore there is a need for Monitoring Water Management System Online. Also monitoring the Water Volume, Flow Rate & Water Quality remotely using Internet Connectivity has become very essential. Without measuring these parameters, Water Management is almost impossible. Therefore it is very important to measure water flow rate and volume. Water management involves supplying water according to the real requirement & without wasting Water. Water Management System is an important part of City Management. The water flow rate & volume data can be uploaded to Thingspeak Server & can be viewed/monitored from any part of the world. For IoT Server, we will use Thingspeak App. We will then integrate the hardware with IoT Server. We will display the water flow rate & Total Volume in 0.96″ OLED Display. We will interface YFS201 Hall Effect Water Flow Sensor with NodeMCU ESP8266 Board. In this project we will learn how to make IoT Based Water Flow Meter using ESP8266 & Water Flow Sensor. Overview: IoT Water Flow Meter using ESP8266 & Water Flow Sensor
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