In the world of IoT (Internet of Things), wireless communication between devices is a crucial aspect. ESP-NOW is a low-power, secure, and direct wireless communication protocol that allows multiple ESP32 devices to communicate with each other without the need for Wi-Fi or a router. In this tutorial, we will learn how to perform wireless communication … Read more
ESP32 ESP-NOW is a wireless communication protocol developed by Espressif Systems specifically for their ESP8266 and ESP32 microcontrollers. It offers a low-power, secure, low-cost, and direct wireless communication solution for ESP32 devices. With ESP-NOW, multiple ESP32 devices can communicate with each other without the need for WiFi or routers, creating mesh networks of devices. In … Read more
In this ESP32 user guide, we will show you how to encrypt messages while using ESP-NOW protocol while wirelessly transferring data from one ESP32 to another. In previous ESP-NOW getting started tutorials we looked upon this wireless protocol in depth where we performed wireless communication between ESP32 devices. This communication protocol is a low-power, secure, … 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