2 Channel Wi-Fi Relay Module Using ESP8266 NodeMCU

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https://www.electronics-lab.com/project/2-channel-wi-fi-relay-module-using-esp8266-nodemcu/

The project described here is an ESP8266 NodeMCU Two Channel Relay Module. This board enables users to control 2 x relays remotely. The 2 channels can be controlled remotely using a webserver/WiFi connection. The project works with 5VDC. Two LEDs indicate relay operation. Screw terminals help user to connect devices and power the supply. Relay […]

Single Channel PS3 Wireless Remote ON/OFF Switch

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https://www.electronics-lab.com/project/single-channel-ps3-wireless-remote-on-off-switch/

The board presented here is multipurpose hardware which includes the ESP32-Wroom module, 3.3V regulator, 5V relay, Power LED, Relay LED, and connector to program the ESP-32 Module. The project requires 5VDC and consumes 60mA current when the relay is ON. The project can be used in IoT applications and the relay can be controlled using […]

Node Red with MQTT on Raspberry Pi

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https://www.electronics-lab.com/project/node-red-with-mqtt-on-raspberry-pi/

This tutorial will guide you to integrate the MQTT on Raspberry Pi via the Node-Red platform. Node-RED is a flow-based development tool for the visual programming of hardware devices, and it is widely used for the Internet of Things. In addition, Node-RED provides a web browser-based flow editor, which can be used to create JavaScript […]

Node Red with Raspberry Pi Tutorial

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https://www.electronics-lab.com/project/node-red-with-raspberry-pi-tutorial/

Node-RED is a powerful open-source visual programming tool for building Internet of Things (IoT) applications. In this tutorial, we’ll cover what Node-RED is, how to install it, and how to use the visual interface to create a simple flow. What is Node-RED? Node-RED is an effective open-source platform for developing Internet of Things (IoT) applications that […]