Wi-Fi-Connected Furnace Controller

A furnace is a crucial piece of equipment in any home or building, as it heats air and distributes it via ductwork to maintain the desired temperature in a given space. As more households adopt smart home ecosystems, there is a growing demand for connected appliances—such as HVAC systems—that can be remotely controlled and monitored through smart devices. This enables energy efficiency and enhances the user experience by allowing heating schedules to be optimized and customized to individual preferences and use cases.

This system features a high-performance MCU with integrated A/D conversion, ensuring precise sensing and control. Built-in functional safety hardware allows the MCU to meet the IEC/UL 60730 safety standard, ensuring safe and reliable operation in residential environments. Additionally, efficient power management and Wi-Fi connectivity provide seamless remote monitoring and control, delivering smart, connected performance for modern HVAC systems.

System Benefits:

• Highly integrated 32-bit MCU with 12-bit A/D conversion for improved precision and compact control.
• Power and signal isolation enhances system safety and reliability, reduces electrical noise, and improves RS-485 signal integrity and noise immunity while enabling flexible power domains between communication and control logic.