WifiLamp
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| Project WifiLamp | |
|---|---|
| |
| 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:
- https://www.action.com/nl-nl/p/lsc-smart-connect-slimme-multicolor-ledlamp-3/
- https://www.letscontrolit.com/forum/viewtopic.php?t=6955
- https://www.circuitsonline.net/forum/view/146361/1
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
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