WifiLamp

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Revision as of 22:41, 3 November 2019 by Bertrik Sikken (talk | contribs) (Turn ON)
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Project WifiLamp
Wifilamp.jpg
Investigating my Action WiFi enabled LED lamp
Status Initializing
Contact bertrik
Last Update 2019-11-03

Intro

This page is about a WiFi enabled LED lamp from the Action store, with E27 form factor.

I hoped this would be an ESP8266 based lamp, so it can possibly be flashed with my StofAnanas/stoflama firmware so it can indicate local air quality (PM10).

More info:

Hardware info

The lamp communicates over 2.4 GHz WiFi.

It has two setup modes, triggered by switching it off-and-on three times quickly in a row

  • fast blink mode: about 1 blink per second
  • slow blink mode: about 1 blink per 3 seconds

MAC address:

 68:57:2d:1a:6a:ea

https://www.cleancss.com/mac-lookup/68-57-2D

It received ip address 192.168.1.240 through DHCP from an OpenWRT router.

Protocol

broadcast message

I sniffed the protocol using TCP dump.

Changing the state of the lamp by the app causes a message to be sent to (TCP): ec2-3-121-210-75.eu-central-1.compute.amazonaws.com.8886

The local protocol appears to use UDP. There is an UDP broadcast message sent by the lamp of 172 bytes.

Capture

Turn ON

Turn ON the lamp: (captured with tcpdump -i wlan0 src 192.168.1.240 -X)

20:40:56.712025 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [P.], seq 137:208, ack 173, win 65535, length 71
	0x0000:  4500 006f 9522 4000 4006 2074 c0a8 01b2  E..o."@.@..t....
	0x0010:  c0a8 01f0 a23a 1a0c fa68 52cc 0000 948d  .....:...hR.....
	0x0020:  5018 ffff e352 0000 0000 55aa 0000 0002  P....R....U.....
	0x0030:  0000 000d 0000 0037 332e 3300 0000 0000  .......73.3.....
	0x0040:  0000 0700 0920 d832 0d91 0fb0 41e1 240d  .......2....A.$.
	0x0050:  c133 b03e c6da 47a5 9b4f bcd1 e4b9 8a03  .3.>..G..O......
	0x0060:  dee7 2c3f cc02 5a2b 04c4 af00 00aa 55    ..,?..Z+......U
20:40:56.712085 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [P.], seq 137:208, ack 173, win 65535, length 71
	0x0000:  4500 006f 9522 4000 4006 2074 c0a8 01b2  E..o."@.@..t....
	0x0010:  c0a8 01f0 a23a 1a0c fa68 52cc 0000 948d  .....:...hR.....
	0x0020:  5018 ffff e352 0000 0000 55aa 0000 0002  P....R....U.....
	0x0030:  0000 000d 0000 0037 332e 3300 0000 0000  .......73.3.....
	0x0040:  0000 0700 0920 d832 0d91 0fb0 41e1 240d  .......2....A.$.
	0x0050:  c133 b03e c6da 47a5 9b4f bcd1 e4b9 8a03  .3.>..G..O......
	0x0060:  dee7 2c3f cc02 5a2b 04c4 af00 00aa 55    ..,?..Z+......U
20:40:56.720005 IP 192.168.1.240.49153 > ec2-18-185-218-106.eu-central-1.compute.amazonaws.com.8886: Flags [P.], seq 138:319, ack 139, win 2368, length 181
	0x0000:  4500 00dd 03d4 0000 ff06 078b c0a8 01f0  E...............
	0x0010:  12b9 da6a c001 22b6 0000 3e44 4a38 df8e  ...j.."...>DJ8..
	0x0020:  5018 0940 d7e8 0000 1703 0300 b042 416f  P..@.........BAo
	0x0030:  6862 6d64 3661 4739 3149 4652 31f8 e4a1  hbmd6aG91IFR1...
	0x0040:  84ce d52e bdc1 a36d 84e3 43e1 10e9 0b16  .......m..C.....
	0x0050:  2702 bc93 e1f1 aad3 fa06 3ec4 fa3d b2fa  '.........>..=..
	0x0060:  8238 7687 6f05 8abf 140b 4da3 5cee c8b8  .8v.o.....M.\...
	0x0070:  aa4f cd1f c989 1ca9 1d0c 795f c06a d484  .O........y_.j..
	0x0080:  2a6f 924b 2cf8 c2a1 7585 a85b a136 5cc1  *o.K,...u..[.6\.
	0x0090:  80ac 1404 4850 2881 4a8a b76b 411a ae59  ....HP(.J..kA..Y
	0x00a0:  1b7a bbb8 aba7 4ff1 3783 7bc1 de48 72cd  .z....O.7.{..Hr.
	0x00b0:  9a98 e1b9 457c 81c1 9254 d377 27eb ed3c  ....E|...T.w'..<
	0x00c0:  9fe4 263e 41ca fc6e 1526 ef33 e7f8 88be  ..&>A..n.&.3....
	0x00d0:  e92b 6456 f8a2 c599 797b 7a8e 1f         .+dV....y{z..
20:40:56.720845 IP 192.168.1.240.6668 > 192.168.1.178.41530: Flags [P.], seq 173:264, ack 208, win 2713, length 91
	0x0000:  4500 0083 03d5 0000 ff06 32ad c0a8 01f0  E.........2.....
	0x0010:  c0a8 01b2 1a0c a23a 0000 948d fa68 5313  .......:.....hS.
	0x0020:  5018 0a99 d5e4 0000 0000 55aa 0000 0000  P.........U.....
	0x0030:  0000 0008 0000 004b 0000 0000 332e 3300  .......K....3.3.
	0x0040:  0000 0000 0000 1c00 0000 0132 0d91 0fb0  ...........2....
	0x0050:  41e1 240d c133 b03e c6da 47be e5c9 a66a  A.$..3.>..G....j
	0x0060:  a6b6 5174 6eee e672 bac9 d94f 0c58 6945  ..Qtn..r...O.XiE
	0x0070:  347a 49aa 4b75 0d05 5c3c e11e 07fb 7a00  4zI.Ku..\<....z.
	0x0080:  00aa 55                                  ..U
20:40:56.720905 IP 192.168.1.240.6668 > 192.168.1.178.41530: Flags [P.], seq 173:264, ack 208, win 2713, length 91
	0x0000:  4500 0083 03d5 0000 ff06 32ad c0a8 01f0  E.........2.....
	0x0010:  c0a8 01b2 1a0c a23a 0000 948d fa68 5313  .......:.....hS.
	0x0020:  5018 0a99 d5e4 0000 0000 55aa 0000 0000  P.........U.....
	0x0030:  0000 0008 0000 004b 0000 0000 332e 3300  .......K....3.3.
	0x0040:  0000 0000 0000 1c00 0000 0132 0d91 0fb0  ...........2....
	0x0050:  41e1 240d c133 b03e c6da 47be e5c9 a66a  A.$..3.>..G....j
	0x0060:  a6b6 5174 6eee e672 bac9 d94f 0c58 6945  ..Qtn..r...O.XiE
	0x0070:  347a 49aa 4b75 0d05 5c3c e11e 07fb 7a00  4zI.Ku..\<....z.
	0x0080:  00aa 55                                  ..U
20:40:56.740665 IP ec2-18-185-218-106.eu-central-1.compute.amazonaws.com.8886 > 192.168.1.240.49153: Flags [P.], seq 139:208, ack 319, win 33768, length 69
	0x0000:  4500 006d 0d3c 4000 ed06 d092 12b9 da6a  E..m.<@........j
	0x0010:  c0a8 01f0 22b6 c001 4a38 df8e 0000 3ef9  ...."...J8....>.
	0x0020:  5018 83e8 27fd 0000 1703 0300 400e 80aa  P...'.......@...
	0x0030:  276e 5c0b 606e c30e 255a 5290 f2e9 2cf9  'n\.`n..%ZR...,.
	0x0040:  77b4 d09c 582d fe23 8bb9 cfec 78fc 906c  w...X-.#....x..l
	0x0050:  615b cc88 6e71 dd85 af36 0f14 e973 3649  a[..nq...6...s6I
	0x0060:  7c5e 19a3 f7ba 1607 369f 25f5 93         |^......6.%..
20:40:56.823365 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [.], ack 264, win 65535, length 0
	0x0000:  4500 0028 9523 4000 4006 20ba c0a8 01b2  E..(.#@.@.......
	0x0010:  c0a8 01f0 a23a 1a0c fa68 5313 0000 94e8  .....:...hS.....
	0x0020:  5010 ffff 8c36 0000                      P....6..
20:40:56.823505 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [.], ack 264, win 65535, length 0
	0x0000:  4500 0028 9523 4000 4006 20ba c0a8 01b2  E..(.#@.@.......
	0x0010:  c0a8 01f0 a23a 1a0c fa68 5313 0000 94e8  .....:...hS.....
	0x0020:  5010 ffff 8c36 0000                      P....6..
20:40:56.825725 IP 192.168.1.240.6668 > 192.168.1.178.41530: Flags [P.], seq 264:292, ack 208, win 2713, length 28
	0x0000:  4500 0044 03d6 0000 ff06 32eb c0a8 01f0  E..D......2.....
	0x0010:  c0a8 01b2 1a0c a23a 0000 94e8 fa68 5313  .......:.....hS.
	0x0020:  5018 0a99 a438 0000 0000 55aa 0000 0002  P....8....U.....
	0x0030:  0000 000d 0000 000c 0000 0000 8de1 4f44  ..............OD
	0x0040:  0000 aa55                                ...U
20:40:56.825785 IP 192.168.1.240.6668 > 192.168.1.178.41530: Flags [P.], seq 264:292, ack 208, win 2713, length 28
	0x0000:  4500 0044 03d6 0000 ff06 32eb c0a8 01f0  E..D......2.....
	0x0010:  c0a8 01b2 1a0c a23a 0000 94e8 fa68 5313  .......:.....hS.
	0x0020:  5018 0a99 a438 0000 0000 55aa 0000 0002  P....8....U.....
	0x0030:  0000 000d 0000 000c 0000 0000 8de1 4f44  ..............OD
	0x0040:  0000 aa55                                ...U
20:40:56.829005 IP 192.168.1.240.49153 > ec2-18-185-218-106.eu-central-1.compute.amazonaws.com.8886: Flags [.], ack 208, win 2299, length 0
	0x0000:  4500 0028 03d7 0000 ff06 083d c0a8 01f0  E..(.......=....
	0x0010:  12b9 da6a c001 22b6 0000 3ef9 4a38 dfd3  ...j.."...>.J8..
	0x0020:  5010 08fb ab60 0000                      P....`..
20:40:56.927465 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [.], ack 292, win 65535, length 0
	0x0000:  4500 0028 9524 4000 4006 20b9 c0a8 01b2  E..(.$@.@.......
	0x0010:  c0a8 01f0 a23a 1a0c fa68 5313 0000 9504  .....:...hS.....
	0x0020:  5010 ffff 8c1a 0000                      P.......
20:40:56.927545 IP 192.168.1.178.41530 > 192.168.1.240.6668: Flags [.], ack 292, win 65535, length 0
	0x0000:  4500 0028 9524 4000 4006 20b9 c0a8 01b2  E..(.$@.@.......
	0x0010:  c0a8 01f0 a23a 1a0c fa68 5313 0000 9504  .....:...hS.....
	0x0020:  5010 ffff 8c1a 0000                      P.......

Turn off

Captured with root@LEDE:~# tcpdump -i wlan0 dst 192.168.1.240 -X

19:28:37.699451 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [P.], seq 1198273966:1198274037, ack 144896, win 65535, length 71
	0x0000:  4500 006f 383b 4000 4006 7d5b c0a8 01b2  E..o8;@.@.}[....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35ae 0002 3600  ........Gl5...6.
	0x0020:  5018 ffff 7278 0000 0000 55aa 0000 0005  P...rx....U.....
	0x0030:  0000 000d 0000 0037 332e 3300 0000 0000  .......73.3.....
	0x0040:  0000 0b00 09cb d0a8 5b7e 1c66 c995 c4fa  ........[~.f....
	0x0050:  49ba 3815 3f33 2863 f141 c27e 0295 4406  I.8.?3(c.A.~..D.
	0x0060:  c8d5 b6ad 8b11 0046 d5dc 8700 00aa 55    .......F......U
19:28:37.699511 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [P.], seq 0:71, ack 1, win 65535, length 71
	0x0000:  4500 006f 383b 4000 4006 7d5b c0a8 01b2  E..o8;@.@.}[....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35ae 0002 3600  ........Gl5...6.
	0x0020:  5018 ffff 7278 0000 0000 55aa 0000 0005  P...rx....U.....
	0x0030:  0000 000d 0000 0037 332e 3300 0000 0000  .......73.3.....
	0x0040:  0000 0b00 09cb d0a8 5b7e 1c66 c995 c4fa  ........[~.f....
	0x0050:  49ba 3815 3f33 2863 f141 c27e 0295 4406  I.8.?3(c.A.~..D.
	0x0060:  c8d5 b6ad 8b11 0046 d5dc 8700 00aa 55    .......F......U
19:28:37.715331 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [.], ack 92, win 65535, length 0
	0x0000:  4500 0028 383c 4000 4006 7da1 c0a8 01b2  E..(8<@.@.}.....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35f5 0002 365b  ........Gl5...6[
	0x0020:  5010 ffff bb54 0000                      P....T..
19:28:37.715391 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [.], ack 92, win 65535, length 0
	0x0000:  4500 0028 383c 4000 4006 7da1 c0a8 01b2  E..(8<@.@.}.....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35f5 0002 365b  ........Gl5...6[
	0x0020:  5010 ffff bb54 0000                      P....T..
19:28:37.720451 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [.], ack 120, win 65535, length 0
	0x0000:  4500 0028 383d 4000 4006 7da0 c0a8 01b2  E..(8=@.@.}.....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35f5 0002 3677  ........Gl5...6w
	0x0020:  5010 ffff bb38 0000                      P....8..
19:28:37.720511 IP 192.168.1.178.41410 > 192.168.1.240.6668: Flags [.], ack 120, win 65535, length 0
	0x0000:  4500 0028 383d 4000 4006 7da0 c0a8 01b2  E..(8=@.@.}.....
	0x0010:  c0a8 01f0 a1c2 1a0c 476c 35f5 0002 3677  ........Gl5...6w
	0x0020:  5010 ffff bb38 0000                      P....8..
19:28:37.727851 IP ec2-3-121-210-75.eu-central-1.compute.amazonaws.com.8886 > 192.168.1.240.49153: Flags [P.], seq 2446234639:2446234708, ack 35378, win 65535, length 69
	0x0000:  4500 006d 3ac2 4000 ed06 ba6b 0379 d24b  E..m:.@....k.y.K
	0x0010:  c0a8 01f0 22b6 c001 91ce 940f 0000 8a32  ...."..........2
	0x0020:  5018 ffff 0755 0000 1703 0300 40c9 f2fa  P....U......@...
	0x0030:  184f 47fe 3f04 4530 a14b ff5a c4ed 2364  .OG.?.E0.K.Z..#d
	0x0040:  b76a 065e e367 8569 d83b 7584 8b4b 05c7  .j.^.g.i.;u..K..
	0x0050:  b699 c776 aba7 b63b 8491 db21 ece0 619b  ...v...;...!..a.
	0x0060:  761e f4bc af1f 82f4 b550 95fa 46         v........P..F