NestCool
NestCool is an IoT-based integration solution that enables air conditioners (ACs) to be controlled using Google Nest thermostats, even when the AC units are not directly compatible with the thermostat. The solution acts as a middleware layer that bridges Google Nest devices with existing centralized AC control infrastructure.
The customer already had CoolMasterNet devices deployed on-site, which were capable of sending control commands to AC units. NestCool integrates these systems to enable seamless thermostat-based control of AC settings across the facility.
The solution consists of multiple interconnected components. The Raspberry Pi acts as a middleware gateway, listening to thermostat events and translating them into appropriate AC commands via CoolMasterNet.
Fusion Softtech was responsible for the design, development, deployment, and reliability engineering of the Raspberry Pi–based middleware solution.
- Google Nest Thermostat – Captures user temperature and mode changes
- Raspberry Pi – Runs a continuously operating Python-based middleware service
- CoolMasterNet – Centralized AC control system
- Air Conditioners (ACs) – End devices receiving control commands
- Total amount and more
Key Features
- Real-Time Thermostat Event Processing
- AC Control via CoolMasterNet
- Always-On Embedded Service
- Resilience & Fault Handling
- Secure API Integrations
- Auto-start on reboot
- Structured logging and monitoring
Technology Stack
- Raspberry Pi
- Python
- Google Nest Thermostat APIs
- CoolMasterNet APIs