@mschaeffler/node-red-dualled

Two nodes to control dual (CCT) LEDs.

Install

$ npm install @mschaeffler/node-red-dualled

Usage

With this nodes you can control pairs of warm and cold leds (called dual leds or CCT leds), which are controled by two independant drivers, and use the feedback from the drivers.

ctrlDualLed

This node drives the dual led by calculating the individual brightness values. It works on base of topics so that with each different topic another led can be controlled.

Input

All inputs are stored in a node local context variable, to always output a complete data set.

msg.	type	description
payload	string	on, off, toggle
	boolean	switch on or off.
	object	set turn, temp, brightness or transition according to key.

Output

All values of the msg (incl. topic) are preserved, except the payload.

control warm LED

msg.	type	description
payload.turn	string	on or off for the warm led.
payload.brightness	number	brightness for the warm led.
payload.transition	number	transition time.

control cold LED

msg.	type	description
payload.turn	string	on or off for the cold led.
payload.brightness	number	brightness for the cold led.
payload.transition	number	transition time.

Parameters

config	type	description
dual Led	confDualLed	configuration node to define one pair of dual LEDs.

feedbackDualLed

This node converts brightness values of two individually controlled leds into a brightness / temp tuple.

Input

All input values are organized in objects with the parameters iWarm and iCold as indexes.

msg.	type	description
payload.output[iWarm]	string	state of warm led.
payload.output[iCold]	string	state of cold led.
payload.brightness[iWarm]	number	brightness of warm led.
payload.brightness[iCold]	number	brightness of cold led.
payload.power[iWarm]	number	actual power of warm led.
payload.power[iCold]	number	actual power of cold led.
payload.energy[iWarm]	number	total energy of warm led.
payload.energy[iCold]	number	total energy of cold led.

{
    "output":{
        "Warm":"off",
        "Cold":"off"
    },
    "brightness":{
        "Warm":42,
        "Cold":38
    },
    "power":{
        "Warm":0,
        "Cold":0
    },
    "energy":{
        "Warm":45.56666666666667,
        "Cold":9.8
    }
}

Output

All values of the msg (incl. topic) are preserved, only this vales are chaged in the payload.

msg.	type	description
payload.output		output of warm led
payload.brightness	summed brightness
payload.temp	number	interpolated color temperature.
payload.power	number	summed power of both leds.
payload.energy	number	summed energy of both leds.

Parameters

config	type	description
dual Led	confDualLed	configuration node to define one pair of dual LEDs.
Index Warm	string	Index to the payload properties for the warm led.
Index Cold	string	Index to the payload properties for the cold led.

confDualLed

This configuration node stores data about a dual white LED.

Parameters

config	type	description
Temp_warm	number	Color temperature of the warm white LED.
Temp_cold	number	Color temperature of the cold white LED.

Example Flow

example flow

Author

Mathias Schäffler

License

LGPL-2.1