Vantric Systems
Firmware · A consumer smart-home hardware company
Smart Thermostat Firmware Rewrite
Rebuilt real-time firmware for a connected thermostat, cutting power draw by 30% and enabling over-the-air updates for the first time.
The challenge
The client's original firmware was built by a contractor who was no longer available. It drained batteries faster than the marketing spec promised, and every fix required a factory recall.
Our approach
- Reverse-engineered and documented the existing firmware
- Rebuilt the power management state machine from scratch
- Added a secure OTA update pipeline
- Ran three months of accelerated battery-life testing
The results
- 30% reduction in average power draw
- OTA updates shipped without a single field recall
- Full documentation handed off to the client's new in-house team
Industry: Connected Devices
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