I’ve always been fascinated by the idea of repurposing existing hardware to integrate with my smart home ecosystem. Recently, I came across a fantastic opportunity to do just that with my Dal Lighting 4" and 6" panel lights. These lights, while functional, were lacking the smart features I’ve come to love in my home. Little did I know, this project would turn into an exciting DIY adventure!
The Challenge
The lights use a Tuya chip for WiFi control, which piqued my interest. My goal was to replace the existing firmware with ESPHome to gain more control and customization options. However, this wasn’t without its challenges. The UART and IO0 pins were soldered onto the daughter board, making direct access difficult. After some careful desoldering, I managed to expose these pins, which was a huge relief!
The Process
- Disassembly: The first step was to remove the back plate and access the PCB. This involved carefully desoldering the chip from the daughter board. I learned the importance of taking my time to avoid damaging any traces or pads.
- Flashing ESPHome: Once the pins were accessible, I connected them to my development setup and flashed the ESPHome firmware. This process was smooth thanks to the detailed YAML configuration I found online, which I adapted for my specific setup.
- Testing: After reassembling the light, I tested it extensively to ensure all functionalities worked as expected. The RGBWW color control was a highlight, offering a wide range of customization options.
Tips for Success
- Ground IO0 Properly: This ensures the chip enters flash mode reliably.
- Use Enamel-Coated Wires: They provide easy access to the UART and IO0 pins for future modifications.
- Double-Check Connections: Before powering up, ensure all soldering is secure to avoid any short circuits.
The Outcome
The transformation was nothing short of amazing. These lights now seamlessly integrate with my smart home system, offering me the control and customization I desired. The best part? I preserved the UL/ETL certification by only modifying the firmware, ensuring safety and compliance.
This project not only saved me from purchasing new smart lights but also deepened my understanding of hardware hacking. It’s a testament to the creativity and innovation within the smart home community. A huge thank you to everyone who shared their knowledge and experiences online—this wouldn’t have been possible without you!
If you’re looking for a rewarding DIY project, I highly recommend exploring the possibilities of repurposing your existing hardware. The satisfaction of breathing new life into old devices is unparalleled!
Happy hacking! 