How do I assign the pins for this 3-relay CB2S socket?
Use the OpenBeken template: P26 → Rel;1, P24 → Rel;2, P7 → Rel;3, P8 → WiFiLED_n, P10 → Btn_Tgl_All [Elektroda, mihcc, post #20939569]
Configuring AliExpress 16A USB Socket with CB2S (BK7321N) and Tuya JSON Code
TL;DR
- An AliExpress 16A USB socket with a CB2S module and BK7231N chip is mapped, with a slightly different pinout and three relays.
- Tuya extraction assigns relay channels to P7, P24, and P26, with the pair/toggle-all button on P10 and the Wi‑Fi LED on P8.
- The Tuya section starts at 2023424, and the OpenBeken template targets BK7231N with pins 7, 8, 10, 24, and 26.
- OpenBeken still has issues: the blue LED behaves like a button, Btn Toggle All is missing in the web GUI, and relay state after Wi‑Fi reconnect is unresolved.
Generated by the language model.
Hi,
Recently I have bought this socket https://www.aliexpress.com/item/1005005583141499.html?spm=a2g0o.order_list.order_list_main.88.26e8180268ZrMC which is similar to https://www.elektroda.com/rtvforum/topic3892473.html#20014441 with some differences. Pinout is slightly different and has 3 relays.
Device configuration, as extracted from Tuya:
- Relay (channel 3) on P7
- Pair/Toggle All Button on P10
- WiFi LED on P8
- Relay (channel 2) on P24
- Relay (channel 1) on P26
Device seems to be using CB2S module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424
This is json code:
OpenBeken template:
And some pictures
Added after 18 [minutes]:
Because I am new with openbeken I'am seeking some help.
I don't know if I'm doing something wrong:
1. It appears that LED light shows as Button. If I toggle the blue light turns on and off, without any relay changes
2. Btn Toggle All is missing in web gui
3. Is it possible to include Btn toggle all to Home Assistant using mqtt?
4. How can I configure the relay's last state? After wifi reconnects, Relay 0 is switched on, but USB relays are off.
Thank you
Recently I have bought this socket https://www.aliexpress.com/item/1005005583141499.html?spm=a2g0o.order_list.order_list_main.88.26e8180268ZrMC which is similar to https://www.elektroda.com/rtvforum/topic3892473.html#20014441 with some differences. Pinout is slightly different and has 3 relays.
Device configuration, as extracted from Tuya:
- Relay (channel 3) on P7
- Pair/Toggle All Button on P10
- WiFi LED on P8
- Relay (channel 2) on P24
- Relay (channel 1) on P26
Device seems to be using CB2S module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424
This is json code:
{
"rl1_lv":"1",
"bt_type":"0",
"rl3_pin":"7",
"rl3_lv":"1",
"net_trig":"2",
"jv":"1.0.0",
"netled1_lv":"0",
"netled_reuse":"0",
"total_bt_pin":"10",
"nety_led":"1",
"total_stat":"2",
"reset_t":"5",
"netled1_pin":"8",
"rl2_lv":"1",
"module":"CB2S",
"ch_cddpid1":"9",
"rl2_pin":"24",
"ch_cddpid2":"10",
"ch_cddpid3":"11",
"total_bt_lv":"0",
"ch_num":"3",
"rl1_pin":"26",
"ch_dpid3":"3",
"netn_led":"0",
"ch_dpid1":"1",
"ch_dpid2":"2",
"crc":"59",
"}4 &Agw_di{abi":"0",
"id":"null",
"swv":"1.1.15",
"bv":"40.00",
"pv":"2.2",
"lpv":"3.4",
"pk":"keyjup78v54myhan",
"firmk":"keyjup78v54myhan",
"cadv":"1.0.5",
"cdv":"1.0.0",
"dev_swv":"1.1.15",
"s_id":"null",
"dtp":"0",
"sync":"0",
"attr_num":"1",
"mst_tp_0":"9",
"mst_ver_0":"1.1.15",
"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 }0Atls_ca_cnt0 .MAgw_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":"tIifVCRMFEUE4LGN5crm9kUb2D248mljvhK09",
"auth_key":"TaMAFMiYg6zqkGivWBaiI85WxIH9GeQx",
"ap_ssid":"SmartLife",
"ap_passwd":"null",
"country_code":"null",
"bt_mac":"null",
"bt_hid":"null",
"prod_test":"false",
"fac_pin":"xjibhmsjf3hqrbcc }3Awf_start_mdll",
"lckey":"null",
"h_url":"null",
"h_ip":"null",
"hs_url":"null",
"hs_ip":"null",
"hs_psk":"null",
"hs_psk_ip":"null",
"mqs_url":"null",
"mqs_ip":"null",
"mq_url":"null",
"mq_ip":"null",
"ai_sp":"null",
"ai_sp_ip":"null",
"mq_psk":"null",
"mq_psk_ip":"null",
"lp_url":"null",
"lp_ip":"null",
"time_z":"null",
"s_time_z":"null",
"wx_app_id":"null",
"wx_uuid":"null",
"dy_tls_m":"0",
"cloud_cap":"0",
"psk21_key":"null }ok5A0000038zlb[{type",
"mode":"rw",
"property":"{type",
"{type":"obj",
"max":"86400",
"scale":"0",
"step":"1",
"type":"value}",
"maxlen":"255}",
"index":"0}@Amf_test_closetrueDNMAgw_ai{key",
"m3nc_tp":"0"
}OpenBeken template:
{
"vendor": "Tuya",
"bDetailed": "0",
"name": "Full Device Name Here",
"model": "enter short model name here",
"chip": "BK7231N",
"board": "TODO",
"flags": "0",
"keywords": [
"TODO",
"TODO",
"TODO"
],
"pins": {
"7": "Rel;3",
"8": "LED;0",
"10": "Btn_Tgl_All;0",
"24": "Rel;2",
"26": "Rel;1"
},
"command": "",
"image": "https://obrazki.elektroda.pl/YOUR_IMAGE.jpg",
"wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
}And some pictures
Added after 18 [minutes]:
Because I am new with openbeken I'am seeking some help.
I don't know if I'm doing something wrong:
1. It appears that LED light shows as Button. If I toggle the blue light turns on and off, without any relay changes
2. Btn Toggle All is missing in web gui
3. Is it possible to include Btn toggle all to Home Assistant using mqtt?
4. How can I configure the relay's last state? After wifi reconnects, Relay 0 is switched on, but USB relays are off.
Thank you
Comments
Thank you for posting the teardown. I can try to help with your issues: That's how you have it configured: "pins": { "7": "Rel;3", "8":... [Read more]
Hi, Thank you for your fast reply. 1. I changed to LED because I had problems with LED status. Now I changed P8 to WifiLED and it works as expected. I did not want the blue light to be turned on. So... [Read more]
Channel 0 is not for WiFi LED. WiFi LED is channel-independent. I think that channel 0 is unused in your case, you have relays set for channel 1, 2 and 3. The channel 0 may be visible on Startup... [Read more]