To have a detailed look at how to create ESP web servers using SPIFFS, you can have a look at our previous articles: The data points will increase after every 30 seconds to a maximum of 40 data points.Īdditionally, we will create and store the HTML file through which we will build our web server in the ESP’s filesystem (SPIFFS). Thus, we will be plotting temperature, humidity, and pressure readings over time in three separate graphs. The graphs will display sensor data on the y axis and time on the x-axis. We will use the Highcharts library to help us display the readings in a real time graph. The three sensor readings: temperature, pressure, and humidity will be plotted individually in separate charts. Our project revolves around the idea of building an ESP32/ESP8266 compatible web server which will display sensor readings accessed from the BME280 sensor. Conclusion Plot Sensor Readings in Real Time Charts Project Overview.Plot Sensor Readings in Real Time Charts Demonstration.Arduino Sketch ESP Sensor Readings Charts Web Server.Connecting BME280 sensor with the ESP32/ESP8266 development board.Plot Sensor Readings in Real Time Charts Project Overview.Arduino Sketch for plotting charts web server.Connecting BME280 sensor with the ESP32 and ESP8266 development boards.We will cover the following content in this article: However, in this article, we will build our own ESP asynchronous web server and plot the sensor data in individual charts. ESP8266 NodeMCU Send Sensor Readings to ThingSpeak using Arduino IDE (BME280).ESP32 Send Sensor Readings to ThingSpeak using Arduino IDE (BME280). You can access the articles through the links given below: In a previous article, we learned how to publish BME280 sensor readings to ThingSpeak using the ThingSpeak Arduino library and both the ESP32 and ESP8266 boards in real time. Any appropriate sensor can be used such as DS18B20, BME680, LM35, and MPU6050 but for this article, we will use a BME280 sensor which is used to measure temperature, pressure, and humidity. For this purpose, we will use the Highcharts library. Our main aim is to transmit these sensor readings to our web server easily and interactively plot them in real time. We will use Arduino IDE to program our ESP32/ESP8266 board which will be connected to a temperature, humidity, and pressure sensor. The sensor readings will be plotted after every 30 seconds in the form of a line chart. In this user guide, we will build an ESP web server that will display sensor readings in real time through graphs.
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