[BK7231N CB2S] 2- and 3-channel WiFi flush-mount switches - description, photos, configuration OpenB
Hello.
I haven`t found a configuration for these wall switches, so I`m posting my own. Bought on AliExpress: https://www.aliexpress.com/item/1005005773648155.html
They are available in 1/2/3/4 channel versions. I have the 2 and 3 channel version.
They have no manufacturer, neither on them nor on the box. Only the general model is MINI-W1, while specific versions are MINI-W1-2CH and MINI-W1-3CH.
They are based on the BK7231N CB2S system and firmware 1.3.10. So at the moment they cannot be reprogrammed using CloudCutter.
In the Smart Life application they are detected as PSW-2CH-CB2S and PSW-3CH-CB2S.
The housing is assembled with 4 latches, which release quite easily when lifted. You can program without desoldering the module, but you need to connect an additional 3.3V power supply. Because it does not produce current from the UART converter.
Pinout:
2 channel version (2 Gang):
JSON configuration:
{
"rl1_lv":"1",
"on_off_cnt":"10",
"onoff_rst_m":"1",
"onoff_clear_t":"10",
"rand_dpid":"42",
"net_trig":"4",
"onoff_n":"5",
"netled1_lv":"1",
"jv":"110.0.0",
"onoff_rst_type":"2",
"ffc_select":"2",
"total_bt_pin":"23",
"nety_led":"2",
"total_stat":"0",
"reset_t":"5",
"netled1_pin":"11",
"rl2_lv":"1",
"remote_add_dp":"49",
"remote_list_dp":"50",
"net_type":"0",
"inch_dp":"44",
"module":"CB2S",
"ch_cddpid1":"9",
"inch_en2":"0",
"inch_en1":"0",
"onoff1":"6",
"ble_pair_time":"30",
"onoff2":"7",
"clean_t":"5",
"init_conf":"38",
"rl2_pin":"24",
"zero_select":"0",
"onoff_type":"0",
"series_ctrl":"0",
"ch_cddpid2":"10",
"total_bt_lv":"0",
"cyc_dpid":"43",
"ch_num":"2",
"rl1_pin":"10",
"netn_led":"2",
"ch_dpid1":"1",
"ch_dpid2":"2",
"crc":"94",
"}>$Agw_di{abi":"0",
"id":"null",
"swv":"1.3.10",
"bv":"40.00",
"pv":"2.2",
"lpv":"3.4",
"pk":"keyjnuy4s3kre7m7",
"firmk":"keyjnuy4s3kre7m7",
"cadv":"1.0.5",
"cdv":"1.0.0",
"dev_swv":"1.3.10",
"s_id":"null",
"dtp":"0",
"sync":"0",
"attr_num":"1",
"mst_tp_0":"9",
"mst_ver_0":"1.3.10",
"mst_md5_0":"null",
"mst_tp_1":"0",
"mst_ver_1":"null",
"mst_md5_1":"null",
"mst_tp_2":"0",
"mst_ver_2":"null",
"mst_md5_2":"null",
"mst_tp_3":"0",
"mst_ver_3":"null",
"mst_md5_3":"null }Ainch_time_key 0KAgw_wsm{nc_tp",
"ssid":"null",
"passwd":"null",
"md":"0",
"random":"0",
"wfb64":"1",
"stat":"0",
"token":"null",
"region":"null",
"reg_key":"null",
"dns_prio":"0 }{uuid",
"psk_key":"FDItek6yQeqW9EdJPm5SYUUf6XuntIwPvPwnO",
"auth_key":"5X00RcxhgeHaxlRPn9levSBYGlfAfjM7",
"ap_ssid":"SmartLife",
"ap_passwd":"null",
"country_code":"null",
"bt_mac":"null",
"bt_hid":"null",
"prod_test":"false",
"fac_pin":"sqgfy9njgvghohai }{nc_tp"
}Device configuration, as extracted from Tuya:
- Pair/Toggle All Button on P23
- WiFi LED on P11
- TglChannelToggle (channel 1) on P6
- TglChannelToggle (channel 2) on P7
- Relay (channel 2) on P24
- Relay (channel 1) on P10
Device seems to be using CB2S module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424Configuration for WebApp:
{
"vendor": "Tuya",
"bDetailed": "0",
"name": "MINI-W1 2-Gang WiFi Switch Module",
"model": "MINI-W1-2CH",
"chip": "BK7231N",
"board": "PSW2-23v1B",
"flags": "1024",
"keywords": [
"TODO",
"TODO",
"TODO"
],
"pins": {
"6": "TglChanOnTgl;1",
"7": "TglChanOnTgl;2",
"10": "Rel;1",
"11": "WifiLED_n;0",
"23": "Btn_Tgl_All;0",
"24": "Rel;2"
},
"command": "",
"image": "https://obrazki.elektroda.pl/4786852700_1704633029.jpg",
"wiki": "https://www.elektroda.pl/rtvforum/topic4026798.html"
}3 channel version (3 Gang):
JSON configuration:
{
"rl1_lv":"1",
"on_off_cnt":"10",
"onoff_rst_m":"1",
"rl3_pin":"26",
"rl3_lv":"1",
"onoff_clear_t":"10",
"rand_dpid":"42",
"net_trig":"4",
"onoff_n":"5",
"netled1_lv":"1",
"jv":"110.0.0",
"onoff_rst_type":"2",
"ffc_select":"2",
"total_bt_pin":"23",
"nety_led":"2",
"total_stat":"0",
"reset_t":"5",
"netled1_pin":"11",
"rl2_lv":"1",
"remote_add_dp":"49",
"remote_list_dp":"50",
"net_type":"0",
"inch_dp":"44",
"module":"CB2S",
"ch_cddpid1":"9",
"inch_en2":"0",
"inch_en3":"0",
"inch_en1":"0",
"onoff1":"6",
"ble_pair_time":"30",
"onoff2":"7",
"clean_t":"5",
"init_conf":"38",
"onoff3":"8",
"rl2_pin":"24",
"zero_select":"0",
"onoff_type":"0",
"series_ctrl":"0",
"ch_cddpid2":"10",
"ch_cddpid3":"11",
"total_bt_lv":"0",
"cyc_dpid":"43",
"ch_num":"3",
"rl1_pin":"10",
"ch_dpid3":"3",
"netn_led":"2",
"ch_dpid1":"1",
"ch_dpid2":"2",
"crc":"20",
"}Agw_di0Ainch_time_keyv":"40.00",
"pv":"2.2",
"lpv":"3.4",
"pk":"keyjnuy4s3kre7m7",
"firmk":"keyjnuy4s3kre7m7",
"cadv":"cdv",
"dev_swv":"1.3.10",
"s_id":"null",
"dtp":"0",
"sync":"0",
"attr_num":"1",
"mst_tp_0":"9",
"mst_ver_0":"1.3.10",
"mst_md5_0":"null",
"mst_tp_1":"0",
"mst_ver_1":"null",
"mst_md5_1":"null",
"mst_tp_2":"0",
"mst_ver_2":"null",
"mst_md5_2":"null",
"mst_tp_3":"0",
"mst_ver_3":"null",
"mst_md5_3":"null "
}Device configuration, as extracted from Tuya:
- Relay (channel 3) on P26
- Pair/Toggle All Button on P23
- WiFi LED on P11
- TglChannelToggle (channel 1) on P6
- TglChannelToggle (channel 2) on P7
- TglChannelToggle (channel 3) on P8
- Relay (channel 2) on P24
- Relay (channel 1) on P10
Device seems to be using CB2S module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424Configuration for WebApp:
{
"vendor": "Tuya",
"bDetailed": "0",
"name": "MINI-W1 3-Gang WiFi Switch Module",
"model": "MINI-W1-2CH",
"chip": "BK7231N",
"board": "PSW3-23v3B",
"flags": "1024",
"keywords": [
"TODO",
"TODO",
"TODO"
],
"pins": {
"6": "TglChanOnTgl;1",
"7": "TglChanOnTgl;2",
"8": "TglChanOnTgl;3",
"10": "Rel;1",
"11": "WifiLED_n;0",
"23": "Btn_Tgl_All;0",
"24": "Rel;2",
"26": "Rel;3"
},
"command": "",
"image": "https://obrazki.elektroda.pl/9026804300_1704633863.jpg",
"wiki": "https://www.elektroda.pl/rtvforum/topic4026798.html"
}The original firmware is downloaded in the attachments.
@GUTEK@ wrote 1529 posts with
rating 314 , helped 161 times.
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Comments
I don`t think I`ve seen this version with the cables leading outside: https://obrazki.elektroda.pl/2593275500_1704646016_thumb.jpg I hope that the instructions contain appropriate warnings, because... [Read more]
Yes, the manual contains a warning, information that it should be connected by a qualified electrician, and connection diagrams for various versions. From what I measured, the cable described as COM is... [Read more]
I noticed a strange problem. I installed a 2-channel switch and after connecting the switch - bistable. When the switch is reset or started, the relay corresponding to the S2 input turns on. I have both... [Read more]
The 2-channel version has one TglChanOnTgl on channel one and another TglChanOnTgl on channel two. Try swapping their channels. If only the S2 input is still to blame (those signed as S2, physically,... [Read more]
I have it set like this: "6": "TglChanOnTgl;1", "7": "TglChanOnTgl;2", "10": "Rel;1", "11": "WifiLED_n;0", "23": "Btn_Tgl_All;0", "24": "Rel;2 - if I physically disconnect the cable from S2, the... [Read more]
However, I conclude that this is a software problem. I have now reprogrammed another switch, exactly the same one with a blue plate as in this topic: https://www.elektroda.pl/rtvforum/topic3945316.html#20853216 ... [Read more]
I found the same problem and solution on github. The problem is that the input state is read too quickly at startup. Here is the corrected version of the software: https://github.com/openshwprojects/OpenBK7231T_App/issues/1000 ... [Read more]
Since it helps in your case, I decided to add it to the main code: https://github.com/openshwprojects/OpenBK7231T_App/commit/a634e2b8b30f12eccd94e421d2c4fc8af0199176 It should be publicly available from... [Read more]
Something is still wrong. In the version shared on XJIKKA`s github, the problem does not occur. However, I have just uploaded today`s version 1.17.450 and it still starts after restart. As I understand... [Read more]
You`re right, I added the correction, try it now, thank you. This is what happens when you do a big project in your free time. [Read more]
Now it`s ok. On version 1.17.451 the problem does not occur. Thank you. [Read more]
Thank you for testing and for your donation. If you have any problems, please write to the forum. [Read more]
I have this device and the gateway from Tuya and I can find it without any problems, but I bought the Sonoff Zigbee2mqtt and all the devices from Tuya, including temperature sensors, but I can`t find it,... [Read more]
Check the logs for any additional information about the failure. Make sure you are entering the pairing state correctly. [Read more]
replying here, since I can't find this topic over at the english version. I've one of these 3 channel module. Flashed it successfully. But after a day of usage, it started acting weird. Switch 2... [Read more]
Hi, i have the same problem the switch are on on boot if i flash the latest firmware 1.17.662 i have the problem, but if i flash the https://github.com/openshwprojects/OpenBK7231T_App/issues/1000 firmware... [Read more]
https://obrazki.elektroda.pl/1756566700_1723989906_thumb.jpg It seems to be still in place: https://github.com/openshwprojects/OpenBK7231T_App/blob/main/src/new_pins.c Can you track which commit/update... [Read more]
I don't know Because I took the firmware from this link https://github.com/openshwprojects/OpenBK7231T_App/issues/1000 that the guy "xjikka" made it, And the and the problem disappeared for me, but... [Read more]
Gentlemen. I have these modules in 1, 2 and 3 circuit versions. I used the 2-circuit version for the lighting in the bedroom. That is, channel one turns on one. chandelier bulb and channel two turns on... [Read more]