<aside> <img src="/icons/code_red.svg" alt="/icons/code_red.svg" width="40px" /> Welcome to the Lumi Labs Smart Bulb Firmware Development Guide! This guide will equip you with the knowledge and tools needed to create and maintain the firmware that powers our innovative smart bulbs. You'll find information on the development environment, communication protocols, memory management, debugging techniques, and over-the-air (OTA) update procedures.

</aside>

Getting Started

1. Development Environment Setup:
   • Install the Lumi Labs SDK (Software Development Kit) on your machine. This kit includes all the necessary libraries, tools, and documentation.
   • Connect your development board (e.g., ESP32) to your computer via USB.
2. Familiarize Yourself with the Hardware:
   • Review the smart bulb hardware specifications (e.g., microcontroller model, LED driver, memory size) to understand the available resources and limitations.

Communication Protocols

• Wi-Fi (Primary): The Lumi Labs smart bulbs primarily use Wi-Fi for communication with the Lumi Labs mobile app and cloud servers. This enables seamless control and integration with other smart home devices.
• Bluetooth (Optional): Bluetooth Low Energy (BLE) may be used for initial setup and pairing with the mobile app, or as a backup communication channel.

Memory Management

• Flash Memory: Flash memory stores the firmware code and persistent data (e.g., lighting configurations, schedules). Efficient memory management is crucial to ensure optimal performance and avoid running out of storage space.
• RAM: RAM (Random Access Memory) stores temporary data and variables used during program execution. Optimize RAM usage to prevent crashes and unexpected behavior.

Debugging Techniques

• Serial Debugging: Utilize the serial interface to monitor the smart bulb's output and gain insights into its operation.
• LED Indicators: The smart bulb may have LED indicators that can signal error states or provide feedback during development.
• Lumi Labs SDK Debugging Tools: The SDK includes additional tools to monitor memory usage, network traffic, and other performance metrics.

Over-the-Air (OTA) Updates

• Lumi Labs smart bulbs support over-the-air (OTA) firmware updates, allowing us to deliver improvements and new features to users remotely. The OTA process involves:
  • Securely downloading the new firmware image from the Lumi Labs cloud servers.
  • Validating the firmware image to ensure its integrity.
  • Flashing the new firmware onto the smart bulb's flash memory.
  • Restarting the smart bulb to apply the update.

<aside> <img src="/icons/dialogue_red.svg" alt="/icons/dialogue_red.svg" width="40px" /> Frequently Asked Questions (FAQs)

</aside>

• What development board should I use for Lumi Labs firmware development?
  • We recommend using the ESP32 development board due to its robust features, Wi-Fi connectivity, and compatibility with our SDK.
• Can I use a different programming language for firmware development?
  • The Lumi Labs SDK primarily supports C/C++. However, you may be able to use other languages with appropriate modifications.
• How do I report a bug or request a new feature?
  • Please submit a ticket on our developer portal or reach out to our developer support team.