Nexa WMR-252

Feature	Support
Sending
Receiving
Config

Supported Brands

Brand	Protocol
KlikAanKlikUit	kaku_dimmer
Nexa WMR-252	kaku_dimmer
Intertechno ITDM-250	kaku_dimmer
Intertechno ITDM-150	kaku_dimmer
Intertechno ITL-210	kaku_dimmer
Intertechno ITL-250	kaku_dimmer
Intertechno ITLR-300	kaku_dimmer

Sender Arguments

-u --unit=unit             control a device with this unit code
-i --id=id                 control a device with this id
-a --all                   send command to all devices with this id
-d --dimlevel=dimlevel     send a specific dimlevel
-l --learn                 send multiple streams so dimmer can learn

Config

{
  "devices": {
    "dimmer": {
      "protocol": [ "kaku_dimmer" ],
      "id": [{
        "id": 100,
        "unit": 0
      }],
      "state": "off",
      "dimlevel": 15
    }
  },
  "gui": {
    "dimmer": {
      "name": "Dimmer",
      "group": [ "Living" ],
      "media": [ "all" ]
    }
  }
}

Option	Value
id	0 - 67108863
code	0 - 31
dimlevel	0 - 15
state	on / off

Optional Settings

Device Settings

Setting	Default	Format	Description
dimlevel-minimum	0	number	Minimum dimlevel
dimlevel-maximum	15	number	Maximum dimlevel
all	0	1 or 0	If specified this will trigger the “group” function of the advanced remotes and trigger all registered devices for the given unitcode

GUI Settings

Setting	Default	Format	Description
readonly	1	1 or 0	Disable controlling this device from the GUIs
confirm	1	1 or 0	Ask for confirmation when switching device

Notes

If you want your switch to learn new codes, you can use the following command:

pilight-send -p kaku_dimmer -i 1 -u 1 -t -l

If you want your switch to remove a learned code, you can use the following command:

pilight-send -p kaku_dimmer -i 1 -u 1 -f -l

Protocol

This protocol sends 148 pulses like this

286 2825 286 201 289 1337 287 209 283 1351 287 204 289 1339 288 207 288 1341 289 207 281 1343 284 205 292 1346 282 212 283 1348 282 213 279 1352 282 211 281 1349 282 210 283 1347 284 211 288 1348 281 211 285 1353 278 213 280 1351 280 232 282 1356 279 213 285 1351 276 215 285 1348 277 216 278 1359 278 216 279 1353 272 214 283 1358 276 216 276 1351 278 214 284 1357 275 217 276 1353 270 217 277 1353 272 220 277 1351 275 220 272 1356 275 1353 273 224 277 236 282 1355 272 1353 273 233 273 222 268 1358 270 219 277 1361 274 218 280 1358 272 1355 271 243 273 222 268 1358 270 219 277 1361 274 218 280 1358 272 1355 271 243 251 11302

The first 2 pulses are the header and the last 2 pulses are the footer. These are meant to identify the pulses as genuine. We don’t use them for further processing. The next step is to transform this output into 36 groups of 4 pulses (and thereby dropping the header and footer pulses).

286 201 289 1337
287 209 283 1351
287 204 289 1339
288 207 288 1341
289 207 281 1343
284 205 292 1346
282 212 283 1348
282 213 279 1352
282 211 281 1349
282 210 283 1347
284 211 288 1348
281 211 285 1353
278 213 280 1351
280 232 282 1356
279 213 285 1351
276 215 285 1348
277 216 278 1359
278 216 279 1353
272 214 283 1358
276 216 276 1351
278 214 284 1357
275 217 276 1353
270 217 277 1353
272 220 277 1351
275 220 272 1356
275 1353 273 224
277 236 282 1353
272 1353 273 277
273 222 268 1358
270 219 277 1361
274 218 280 1358
272 1355 271 243
273 222 268 1358
270 219 277 1361
274 218 280 1358
272 1355 271 243

If we now look at carefully at these groups you can distinguish three types of groups:

• 272 1355 271 243
• 274 218 280 1358
• 277 236 282 277

So the first group is defined by a high 2nd, the second group has a high 4th pulse, and the third group has a low 2nd and a low 4th pulse. This third group is a special one but not much of a use while receiving. However, it must be taken care of when sending arctech dimmer codes. So we take either of these two pulses to define a 0 or a 1. In this case we say a high 2nd pulse means a 1 and a low 2nd pulse means a 0. We then get the following output:

000000000000000000000000010100010001

Each (group) of numbers has a specific meaning:

• ID: 0 till 25
• All: 26
• Check: 27
• Unit: 28 till 31
• Dimlevel: 32 till 35

00000000000000000000000001 0 1 0001 0001

• The ID is defined as a binary number
• The All special pulse to identify the code was meant for a dimmer
• The Check defines whether a devices needs to be turned On or Off
• The Unit is also defined as a binary number
• The Dimlevel defines the specific dimlevel

So this code represents:

• ID: 1
• All: Single
• Check: Valid
• Unit: 1
• Dimlevel: 1

Another example:

• ID: 123456
• All: All
• Check: Valid
• Unit: 15
• Dimlevel: 8

000000000111100010010000001011111000