Problem

The product needed a complete firmware stack for connected home devices with reliable setup and cloud communication.

Solution

Built end-to-end firmware with WiFi, BLE, MQTT, and HTTP, including secure provisioning flow and cloud integration for field deployment.

Impact

Enabled production-ready deployment with consistent onboarding and stable device-to-cloud data exchange.

Problem

The meter required accurate electrical parameter monitoring with stable long-term logging on constrained hardware.

Solution

Optimized UART communication routines and reworked flash storage handling for robust data persistence and efficient writes.

Impact

Improved reading accuracy while delivering stable logging behavior during extended runtime.

Problem

Configuration needed to be simple for users while remaining compatible with Tuya UART protocol constraints.

Solution

Implemented Tuya UART protocol and BLE provisioning pipeline to support seamless app-based device configuration.

Impact

Reduced setup friction and improved first-time provisioning success in real usage.

Problem

Control loop instability and inefficient runtime behavior were affecting motor performance and smoothness.

Solution

Refined control loop execution path and tuned timing-sensitive firmware sections for deterministic behavior.

Impact

Delivered smoother motor operation with better efficiency under production load conditions.