# Light : Relay

Implementation register

Implements Light

Switches a lamp wired to a relay of a Voldeno module. On/off only, so set the features of the light block to On/Off.

Light : Relay

# Source Code

View Volang source
// Light : Relay - implementation of the light block.
//
// Switches a lamp wired to a relay of a Voldeno module. The relay only knows
// on and off, so brightness and color are ignored, and there is no feedback:
// the light block publishes the state it commanded.

extern fn light_apply(power, brightness, color_mode, color_temp, hue, saturation) {
    if (power) {
        register::set(1)
    } else {
        register::set(0)
    }
    return 0
}
Learn how the Light : Relay logic block works, when to use it, and how to configure it in your Voldeno smart home automation.