This set of node-red nodes communicate with the LED-Warrior14 on a Raspberry PI with the build in I2C-Interface.
This node serves as a simple blueprint and demo for using the LED-Warrior14 over I2C.

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Install NODE

Copy the folder 'node-cm-lw14' into ~./node-red/node_modules and start/restart your Node-Red server.
For using the I2C-Interface with node-red / nodejs you have to install the i2c-bus library from fivdi.

npm install i2c-bus

All informations about this library can found in this sites:

• https://www.npmjs.com/package/i2c-bus
• https://www.github.com/fivdi/i2c-bus

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Usage

The nodes have the following values:

• Type: The device type to send data to all devices (broadcast), a group, or a single device (short).
• Device adr.: Set a device address which receive the data. Value between 0...63 are valid for single devices, 0...15 for groups, and for broadcast this value will be ignored. Based on the 'Type' the address will be masked automatically.
• Value: Valid values are between 0...254. A value of 255 (or MASK) will be ignored by the device.

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Node: dacp

Send a DACP (direct light output) value to a device/group/broadcast. The value 0..254 based on the output of the device (linear or logarithmic). For more information about the steps please take a look into the data sheet of your device.

Table for logarithmic DACP ouput. N = DACP value, %X = Light output

N	X%	N	X%	N	X%	N	X%	N	X%
1	0,100	52	0,402	103	1,620	154	6,520	205	26,241
2	0,103	53	0,414	104	1,665	155	6,700	206	26,967
3	0,106	54	0,425	105	1,711	156	6,886	207	27,713
4	0,109	55	0,437	106	1,758	157	7,076	208	28,480
5	0,112	56	0,449	107	1,807	158	7,272	209	29,269
6	0,115	57	0,461	108	1,857	159	7,473	210	30,079
7	0,118	58	0,474	109	1,908	160	7,680	211	30,911
8	0,121	59	0,487	110	1,961	161	7,893	212	31,767
9	0,124	60	0,501	111	2,015	162	8,114	213	32,646
10	0,128	61	0,515	112	2,071	163	8,336	214	33,550
11	0,131	62	0,529	113	2,128	164	8,567	215	34,479
12	0,135	63	0,543	114	2,187	165	8,804	216	35,433
13	0,139	64	0,559	115	2,248	166	9,047	217	36,414
14	0,143	65	0,574	116	2,310	167	9,298	218	37,422
15	0,147	66	0,590	117	2,374	168	9,555	219	38,457
16	0,151	67	0,606	118	2,440	169	9,820	220	39,522
17	0,155	68	0,623	119	2,507	170	10,091	221	40,616
18	0,159	69	0,640	120	2,577	171	10,371	222	41,740
19	0,163	70	0,658	121	2,648	172	10,658	223	42,895
20	0,168	71	0,676	122	2,721	173	10,953	224	44,083
21	0,173	72	0,695	123	2,797	174	11,256	225	45,303
22	0,177	73	0,714	124	2,874	175	11,568	226	46,557
23	0,182	74	0,734	125	2,954	176	11,888	227	47,846
24	0,187	75	0,754	126	3,035	177	12,217	228	49,170
25	0,193	76	0,775	127	3,119	178	12,555	229	50,531
26	0,198	77	0,796	128	3,206	179	12,902	230	51,930
27	0,203	78	0,819	129	3,294	180	13,260	231	53,367
28	0,209	79	0,841	130	3,386	181	13,627	232	54,844
29	0,215	80	0,864	131	3,479	182	14,004	233	56,362
30	0,221	81	0,888	132	3,576	183	14,391	234	57,922
31	0,227	82	0,913	133	3,675	184	14,790	235	59,526
32	0,233	83	0,938	134	3,776	185	15,199	236	61,173
33	0,240	84	0,964	135	3,881	186	15,620	237	62,866
34	0,246	85	0,994	136	3,988	187	16,052	238	64,607
35	0,253	86	1,018	137	4,099	188	16,496	239	66,395
36	0,260	87	1,047	138	4,212	189	16,953	240	68,233
37	0,267	88	1,076	139	4,329	190	17,422	241	70,121
38	0,275	89	1,105	140	4,449	191	17,905	242	72,062
39	0,282	90	1,136	141	4,572	192	18,400	243	74,057
40	0,290	91	1,167	142	4,698	193	18,909	244	76,107
41	0,298	92	1,200	143	4,828	194	19,433	245	78,213
42	0,306	93	1,233	144	4,962	195	19,971	246	80,378
43	0,315	94	1,267	145	5,099	196	20,524	247	82,603
44	0,324	95	1,302	146	5,240	197	21,092	248	84,889
45	0,332	96	1,338	147	5,385	198	21,675	249	87,239
46	0,342	97	1,375	148	5,535	199	22,275	250	89,654
47	0,351	98	1,413	149	5,688	200	22,892	251	92,135
48	0,361	99	1,452	150	5,845	201	23,526	252	94,686
49	0,371	100	1,492	151	6,007	202	24,177	253	97,307
50	0,381	101	1,534	152	6,173	203	24,846	254	100,000
51	0,392	102	1,576	153	6,344	204	25,534	255	MASK

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Node: command

Send a COMMAND value to a device/group/broadcast. The basic commands are:

• OFF = 0x00 (0) -> Set the output to 0
• UP = 0x01 (1) -> Dimm up to the next step.
• DOWN = 0x02 (2) -> Dimm down to the previous step.
• STEP_UP = 0x03 (3) -> Single step up to the next value (x = x+1)
• STEP_DOWN = 0x04 (4) -> Single step down to the next value (x = x-1)
• MAX = 0x05 (5) -> Call the max output
• MIN = 0x06 (6) -> Call the min output
• STEP_DOWN_OFF = 0x07 (7) -> Single step down, if last step will be 0 set it off
• ON_STEP_UP = 0x08 (8) -> Single step up if off

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Node: query

Get a value from specific devices. Groups or broadcast are not allowed/possible. This function will get information about the devices like 'actual level' or status. Most used value are:

• QUERY_STATUS = 0x90 (144) -> Get the status (1 Byte). Each bit represent a status.
• QUERY_ACTUAL_LEVEL = 0xA0 (160) -> Get the actual output value (0..254)

There are many more QUERY commands, for more information please take a look into the DIN IEC62386 standard.

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Node: scene

Call a scene for a device/group/broadcast. All addressed devices will show the scene value directly. Each DALI(*) device allows storing up to 16 scene values to create scenes for your light environment. Value: 0..15 are valid

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Important Note

This node is created to use the LED-Warrior14 with a Raspberry PI and the build in I2C-Interface of the Raspberry PI.
This node will only work on a Raspberry PI.
For more information about IEC62386 bus: https://www.dali-alliance.org/

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Links and further information

• https://codemercs.com/en/light-interface/master
• https://codemercs.com/en/light-interface/basics
• https://de.wikipedia.org/wiki/Digital_Addressable_Lighting_Interface

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Trademarks

*DALI is a registered trademark of DIIA