Low-Cost Automation with ESP32 and Node-RED

The ESP32 in combination with Node-RED is an excellent way to connect and control multiple devices simultaneously using and easy-to-use dashboard. If you are not aware of the benefits and possibilities this combination can offer, this article will provide you with a comprehensive overview of its uses, advantages, and possibilities.

The easiest way to connect your ESP32 to Node-RED is through Arduino IDE. There are numerous tutorials available on installing libraries and making programs. Once your ESP32 is set up, you can establish a connection with Node-RED using MQTT by installing the required libraries.

Next, you need to set up a server for Node-RED. You have two options: either host the server in the cloud or install it on another device, such as a Raspberry Pi, for example. The choice is yours!


  • Home Automation: Node-RED can be used as an automation tool to create complex workflows.
  • Internet of Things (IoT): ESP32 can be used to connect various sensors and devices to internet.
  • Data Logging: ESP32 can be used to collect data from sensors and Node-RED can be used to send this data to a MySQL server, for example.

The possibilities are endless:

  • Real-time monitoring, low cost: With the combination of ESP32 and Node-RED, it is possible to create real-time monitoring systems that can monitor various parameters such as temperature, humidity, and pressure.
  • Predictive maintenance: By analyzing the data collected by ESP32 using Node-RED, it is possible to predict when a machine or device is likely to fail, allowing for preventative maintenance.
  • Remote control: With ESP32 and Node-RED, it is possible to create remote control systems that allow users to control various devices and appliances from their smart phones or tablets.
  • Machine learning: By integrating machine learning algorithms with ESP32 and Node-RED, it is possible to create intelligent systems that can make decisions based on data collected from sensors.

In conclusion, the combination of ESP32 and Node-RED is a straightforward and low-cost process. With the right tools and setup, you can easily establish a connection and begin exchanging data between the two devices.

If you want to see a demo of this combo, feel free to hit me up!

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