In this tutorial, we will learn to create a DS18B20 web server using ESP8266 NodeMCU 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 … 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 learn how to interface MQ3 alcohol sensor with ESP32 to design a breathalyzer that can detect alcohol in the human body. This user guide focuses on MQ3 alcohol sensor module that determines the concentration of alcohol in the surrounding environment. We will learn about its introduction, features, pinout, and interfacing … 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 ESP8266 NodeMCU. Firstly, We will discuss the introduction, pinout, working, and connection diagram of the pulse sensor (SEN-11574) with ESP8266 NodeMCU. After that, we will three examples such as controlling LED with pulse rate, plotting data on serial monitor, … 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 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