In this tutorial, we will learn to monitor heart rate using a pulse sensor (SEN-11574) and Arduino. Firstly, We will discuss the introduction, pinout, working, and connection diagram of the pulse sensor (SEN-11574) with Arduino. After that, we will three examples such as controlling LED with pulse rate, plotting data on serial monitor, and visualizing … Read more
In this tutorial, we will learn to create a DS18B20 web server using ESP32 and Arduino IDE. DS18B20 is used to measure temperature in Celsius and temperature in Fahrenheit. This web server will act as a weather station as it will show temperature readings in Celsius and Fahrenheit on the web page. The DS18B20 sensors … Read more
In this tutorial, we will build an IoT based soil moisture monitoring system with ESP32 and Adafruit IO. Firstly, we will show you how to interface soil moisture sensor e.g. HL-01 with ESP32. Not only that but we will build a soil moisture monitor that will indicate the percentage of moisture in soil on the … Read more
In this project, we will build an ESP32 GPS vehicle tracker using NEO 6M GPS module and Arduino IDE. With the help of this GPS tracker, we will be able to track vehicles from anywhere around the world. We will also show GPS location coordinates on an OLED display connected with the ESP32 board. The … Read more
In this tutorial, we will learn how to perform wireless HTTP communication between two ESP32 boards using Wi-Fi without any physical router or internet connection. In other words, we will learn to exchange data between ESP32 boards wirelessly. The type of communication will be HTTP where one ESP32 board acts as an HTTP client generating … Read more
In this user guide, we will learn how to host ESP32 web server files on a microSD card. In other words, we will build a web server that serves the files to a client saved on the microSD card. Storage data including text, video, audio, CSV, HTML, JavaScript, and CSS files can all be conveniently … Read more
In this comprehensive tutorial, we will learn to interface SSD1306 OLED with ESP32 using Arduino IDE. We will discuss how to display simple texts, set pixels, draw lines and shapes on OLED display with ESP32. Additionally, we will also learn to display monochrome bitmap images on the OLED screen. An OLED (organic light-emitting diode) is … Read more
In this user guide, we will learn how to log DS18B20 temperature sensor readings along with timestamps to a microSD card using ESP32 and Arduino IDE. Furthermore, the current date and time will also be logged with each temperature sensor reading. We will use the ESP32 NTP server to request updated time stamps. In order … Read more
In this user guide, we will learn how to interface a micro SD card with Arduino using the microSD card module or connector and Arduino IDE. This module provides an SPI interface to connect an SD card module with any microcontroller which supports the SPI communication interface. Using a micro SD card becomes very handy … Read more
In this user guide, we will learn how to interface a microSD card with ESP32 using the microSD card module or connector and Arduino IDE. This module provides an SPI interface to connect an SD card module with any microcontroller which supports the SPI communication interface. Using a microSD card becomes very handy for applications … Read more