This is a prototype for a dining table pendant lamp. A camera monitors what’s underneath the lamp and tries to mimic the colors it sees with the LED:s on the top of the lamp. This creates a somewhat matching ambient light in the room.
It is made from oak wood and it uses a Python script on a Raspberry PI Zero W for the image analysis. The drawback is that the boot time is close to 20 seconds. Next version will use the smaller ESP32 module which hopefully will have a faster startup time.
Color calibration for camera images in different lighting conditions and LED color was harder than I thought.
Bill of materials
- Oak wood (200 cm x2 and 10 cm x 2)
- Individually controllable LED strips 2 x 1 m
- 5A 220V to 5V DC power supply.
- Raspberry Pi Zero W.
- RPI-compatible camera module.