logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Exploring the BK7231N Inside the Discounted Energizer Smart LED 5 Metre Flexi RGB

divadiow  Cool? (0)
Bought this from B&M Bargains in the UK. The unit was in a discounted, £25 down to £15 (who would pay £25?!) area and labelled as having a missing remote. I noticed it was also missing a power supply so asked for a further discount and got it for £7.50. I later realised this version doesn't come with a remote, so only the PSU was missing :o

B&M Bargains website displaying Energizer LED strip light offer.

Anyway, inside it's a BK7231N. The RX1, TX1, RX2, TX2, GND, CEN, VCC are all labelled nicely on the back of the PCB. This is probably the easiest dump/flash I've performed so far. I found a 12v adaptor with a fitting barrel connector so used this as my power source rather than using the VCC from USB-TTL adaptor. Only GND, TX1, RX1 and CEN used when flashing.

It's clear from the unsoldered 3.3/GND/IR that I could add an infrared sensor, perhaps like https://www.youtube.com/watch?v=KU0tDwtjfjw

In researching the PCB I found this EKF-branded product with the same board. The packaging and content look very similar but this one has IR and a remote.

https://megamarket.ru/catalog/details/umnaya-...lenta-ekf-connect-rgbw-3m-600003974609_18788/

UART2 boot log has this as a oem_bk7231s_strip_ty

Section of a green circuit board with markings ZKH-2 and E331298. Close-up of an electronic device's circuit board with wire labels. View of a circuit board marked CT157 V1.1 BK7231T_WIFI. BK7231N circuit board with labeled ports on a wooden surface. Printed circuit board with components and markings. Close-up of a printed circuit board with a Beken BK7231TQN32 chip on a green background. Close-up of a green circuit board with various electronic components, including a capacitor and pin labels. Close-up of a printed circuit board with various electronic components. Close-up of a green circuit board with protruding wires and soldered points. Close-up of a circuit board with several wires connected to labeled pins. Close-up of a circuit board with multicolored wires connected on the left side. LED strip and packaging with marked reduced price. Packaging of Energizer smart LED strip with features and specifications displayed. Energetic SmartLED 5-metre package with REDUCED TO CLEAR label. White Energizer adapter with a plug for model S17164, Smart 5m LED Strip Light, on a wooden background. Close-up of a circuit board with wires connected to various points on a green background.

Code: text Expand Select all Copy to clipboard

{
	"rstnum":"3",
	"rstcor":"r",
	"Jsonver":"1.0.0",
	"brightmin":"10",
	"r_lv":"1",
	"title20":"0",
	"deftemp":"100",
	"c_lv":"1",
	"wfcfg":"prod",
	"colormin":"10",
	"pmemory":"1",
	"keyfunc":"0",
	"md":"0",
	"random":"0",
	"wfb64":"1",
	"stat":"0",
	"token":"null",
	"region":"null",
	"reg_key":"null",
	"dns_prio":"0{key",
	"lckey":"$g?4)X2bk^ccil13",
	"h_url":"http",
	"h_ip":"35.156.11.122",
	"hs_url":"null",
	"{uuid":"abdf9bece9712b76",
	"psk_key":"FHAJcgsnmBIKJR91OexX0jRZxx4dBBpgFnJ2E",
	"auth_key":"TZoz1Z8IMa5eXBZB3yvQrNGUVOTygdl3",
	"ap_ssid":"SmartLife",
	"ap_passwd":"null",
	"country_code":"CN",
	"bt_mac":"null",
	"bt_hid":"null",
	"prod_test":"false }unc",
	"cmod":"rgbc",
	"g_lv":"1",
	"cwtype":"0",
	"rstbr":"100",
	"colormax":"100",
	"g_pin":"8",
	"c_pin":"24",
	"module":"WB3S",
	"b_pin":"6",
	"b_lv":"1",
	"dmod":"0",
	"onoffmode":"0",
	"brightmax":"100",
	"pwmhz":"1000",
	"r_pin":"7",
	"aging":"0",
	"rsttemp":"100",
	"category":"0504",
	"defcolor":"r",
	"defbright":"100",
	"crc":"108",
	"}2`Bgw_dihs_ip":"null",
	"hs_psk":"https",
	"hs_psk_ip":"18.195.249.137",
	"mqs_url":"null",
	"mqs_ip":"null",
	"mq_url":"m2.tuyaeu.com",
	"mq_ip":"35.156.44.172",
	"ai_sp":"null",
	"mq_psk":"m2.tuyaeu.com",
	"mq_psk_ip":"35.156.44.172",
	"time_z":"+00",
	"s_time_z":"[[1711846800",
	"wx_app_id":"null",
	"wx_uuid":"null",
	"dy_tls_m":"0",
	"cloud_cap":"1025 }rt_co0vBastro_timer$g?4)X2bk^ccil13",
	"{nc_tp":"2",
	"ssid":"null",
	"passwd":"null"
}
About Author
divadiow
divadiow wrote 3131 posts with rating 557 , helped 278 times. Live in city Bristol. Been with us since 2023 year.

Comments

p.kaczmarek2 10 Dec 2023 18:11

And here is OBK template: { "vendor": "Energizer", "bDetailed": "0", "name": "Smart Led Flexi Strip", "model": "", "chip": "BK7231T", "board": "WB3S", "keywords": ["B&M Bargains","4... [Read more]

divadiow 10 Dec 2023 21:22

Indeed. Will the Energizer be added to the list of supported devices? [Read more]

p.kaczmarek2 19 Dec 2023 04:21

Thank you, the device should be now live on our teardowns list: https://obrazki.elektroda.pl/6671712800_1702956069_thumb.jpg See more at: https://openbekeniot.github.io/webapp/devicesList.html [Read more]

divadiow 19 Dec 2023 07:58

thank you, yes. Does the posting of the OBK template in a thread get picked up automatically as new device? I hadn't realised this was the case, if so. [Read more]

p.kaczmarek2 19 Dec 2023 20:27

Unfortunatelly not, they are added by hand by me. Sometimes users also add them themselves by making a pull request to our devices.json database: https://github.com/OpenBekenIOT/webapp/blob/gh-pages/devices.json I... [Read more]

%}