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Save money with your Honeywell heating system: Control it on Arduino Cloud via Node-RED

Arduino TeamAugust 7th, 2023

In today’s fast-paced world, the convenience and comfort of a smart home have become paramount. Monitoring systems offer us a way to streamline daily tasks, optimize energy usage, and ultimately lead to more comfortable and cost-effective living. One of the key areas where smart systems shine is in heating control, allowing us to optimize temperature levels while keeping energy consumption in check and our bill under control.

In this blog post, we will delve into the benefits of using monitoring systems at home, with a particular focus on how integrating the Honeywell Evohome system, the Arduino Cloud, and Node-RED can revolutionize the way you control your heating, ensuring optimum temperature, enhanced comfort, and significant savings.

Optimizing temperature and comfort with Honeywell Evohome

The Honeywell Evohome system is a cutting-edge smart heating solution designed to provide individual room-by-room temperature control. Unlike traditional thermostats, which often focus on a single temperature setting for the entire house, Evohome empowers users to customize heating schedules for each room, tailoring comfort according to specific preferences and occupancy patterns. This level of personalized control ensures that every family member enjoys their ideal climate, enhancing overall comfort at home while also offering significant cost savings.

Moreover, the precise and responsive nature of the Evohome system enables it to adapt quickly to changing conditions. By utilizing multiple wireless radiator controllers and a central hub, the system ensures that the desired temperatures are maintained accurately, even in large or multi-story houses. This optimized heating control not only provides enhanced comfort but also contributes to reduced energy consumption, leading to valuable savings on heating bills.

Cloud platforms are a must-have for smart heating

Cloud integration is a big deal for modern smart systems. It lets you access and control your devices remotely from anywhere in the world. But here’s the thing: with so many smart home gadgets from different brands, each having its own way of doing things, it can get pretty chaotic. That’s where the Arduino Cloud comes to the rescue! The Arduino Cloud is an all-in-one intuitive IoT platform, supporting a wide range of hardware and backed by the trusted Arduino community. The Arduino Cloud removes complexity to empower users from all levels of expertise to create from anywhere, and control and share their projects with stunning dashboards. It’s a super reliable cloud service that connects all your devices to the internet and makes remote control a breeze. 

Empowering integration with Node-RED

Node-RED, an open-source automation tool, acts as a middleware between different smart systems. It enables seamless integration and communication between devices and services, making it an ideal platform to tie together various IoT components. Through Node-RED, you can create sophisticated automation flows that trigger actions based on specific events or data received from different sources.

With the help of Node-RED, you can integrate almost everything into the Arduino Cloud. The set of Node-RED nodes allow you to inject or retrieve data from the Arduino Cloud emulating a device. The best part? You don’t have to juggle multiple apps or interfaces anymore! Every system that is supported by Node-RED can be integrated with the Arduino Cloud. Furthermore, thanks to the Arduino Cloud device-to-device feature, you can use the data from all these systems in any other device that is connected to the Arduino Cloud.

Integrate Honeywell Evohome and Arduino Cloud with  Node-RED

The following project shows how simple it is to integrate your Honeywell Evohome system with the Arduino Cloud using Node-RED as a middleware. The only thing you need is a spare PC or Raspberry Pi where you can run Node-RED. 

With the Arduino Cloud dashboard, you can monitor the evolution of the temperature and set points in all the zones of your home, establish the set points and turn the heating system on and off.

The process is really straightforward:

  • Get your Honeywell getconnected credentials 
  • Create the Device and Thing in the Arduino Cloud 
  • Install Node-RED in a machine and import the Node-RED flow 
  • Create the Arduino Cloud dashboard 
  • Test everything and enjoy!

You can learn more about the project on the Arduino Project Hub or access the code directly on GitHub.


By embracing the power of smart home monitoring systems, such as Honeywell Evohome, and combining it with cloud platforms like the Arduino Cloud and the flexible integration capabilities of Node-RED, you can create an ecosystem that optimizes temperature, enhances comfort, and significantly reduces energy consumption. This convergence of technology empowers you to take control of your heating system like never before, ultimately leading to a more comfortable, efficient, and sustainable home. So, why wait? Embrace the future of smart heating today!