RGB Devices

RGB devices let you control light color from the mobile app or dashboard.

Requirements

• ESP32 board
• RGB LED strip or bulb
• 3 free GPIO pins (R, G, B)
• Proper wiring with resistors or MOSFETs

Wiring

Pin	ESP32 GPIO	Notes
R (Red)	GPIO 16	Via MOSFET or resistor
G (Green)	GPIO 17	Via MOSFET or resistor
B (Blue)	GPIO 18	Via MOSFET or resistor
GND	GND	Common with ESP32

Add an RGB device (dashboard)

1. Open Devices → Add device
2. Choose type: RGB Light
3. Set GPIO pins for R, G, and B
4. Set the ESP32 board name (e.g. sala)
5. Save

The device id in the platform must match id in the ESP32 devices_config JSON.

Color control

• Mobile app: tap the color circle on the device card → pick a color → Apply
• Dashboard: use the color picker next to the device
• Adjust R/G/B sliders or use presets

MQTT topics

Control:

smarthome/{esp32_name}/rgb/{device_id}/set

Payload:

{"state":"ON","r":255,"g":128,"b":0}

State feedback:

smarthome/{esp32_name}/rgb/{device_id}/state

Preset colors

Color	R	G	B
White	255	255	255
Warm white	255	200	100
Red	255	0	0
Green	0	255	0
Blue	0	0	255
Purple	128	0	255