# Using Different Protocols for Building Applications with Node-RED
In IoT development, effective communication between devices is essential. This communication is facilitated by various protocols like MQTT, HTTP, CoAP, and WebSockets. Each protocol brings its own set of strengths and is suited for different IoT scenarios. However, understanding which protocol is suited for what scenario and utilizing it can be quite difficult. That's why we have created this section of resources where you will find documentation on using different communication protocols with Node-RED.
Node-RED, with its intuitive visual programming interface, simplifies the integration of these protocols. Whether you're publishing sensor data over MQTT, triggering HTTP requests, querying CoAP endpoints, or enabling real-time communication with WebSockets, Node-RED provides a flexible and powerful platform.
# Resources
Here are some resources to help you get started with integrating Node-RED with various communication protocols:
- Using MQTT with Node-RED: Learn how to use MQTT with Node-RED.
- Building Secure OPC-UA Server in Node-RED.: Learn how to build Build and Deploy a custom OPC UA Server in Node-RED
- Using Modbus with Node-RED: Learn to use Modbus with Node-RED, including how to build a Modbus server and how to send and read data to and from that server.