In this user guide, we will learn to interface the DHT11 and DHT22 with ESP32 which is used for humidity, and temperature using Arduino IDE. Firstly, we will learn about DHT11/DHT22 such as its introduction, pinout diagram, and interfacing diagram with ESP32. Secondly, we will see how to install the DHT sensors library in Arduino … Read more
In this user guide, we will learn to interface Nokia 5110 Graphic LCD Display with ESP32 using Arduino IDE. We will discuss how to display simple texts, rotate texts, draw numbers and shapes on Nokia 5110 LCD display. Additionally, we will also display a monochrome bitmap image on the screen. We have a similar guide … Read more
In this tutorial, we will create an ESP32 web server using ESP-NOW communication protocol and Wi-Fi simultaneously. The web server will display sensor readings received by a single ESP32 server board which will be sent by two other ESP32 boards via ESP-NOW one way communication protocol. Any appropriate sensor can be used such as DS18B20, BME680, LM35, and MPU6050 but … Read more
In this tutorial, we will see how to send data from multiple ESP32 boards to a single ESP32 using ESP-NOW and Arduino IDE. In other words, we will transmit data from many ESP32 to one ESP32 board (Many to One Communication). Previously, we sent data from one ESP32 to another ESP32 and from one ESP32 … Read more
In this tutorial, we will see how to send data from one ESP32/ESP8266 to multiple ESP32 and ESP8266 boards using ESP-NOW and Arduino IDE. In other words, we will transmit data from one ESP32 to many ESP32 and ESP8266 boards (One to Many Communication). Previously, we sent data from one ESP32 to another ESP32 via … Read more
In this tutorial, we will learn to monitor heart rate using a pulse sensor (SEN-11574) and ESP32. Firstly, We will discuss the introduction, pinout, working, and connection diagram of the pulse sensor (SEN-11574) with ESP32. 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