[TR6260S1 Transa Semi] Smart LED strip controller 144W 6A RGB, IR, firmware

p.kaczmarek2 16 Jul 2023 06:56 8 2727 Cool? (+2)

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TL;DR

A very cheap 144W, 6A RGB LED strip controller with WiFi, IR remote control, and music-reactive mode was opened to identify its TR6260S1 electronics.
Inside, the PCB uses a TR6260S1 WiFi microcontroller, RX/TX/BOT pads, a microphone, and a step-down converter for 3.3V from 12V.
The boot log exposes Tuya IOT SDK V:1.0.10 for tr6260, product_type 0x5507, and a SmartLife-26CD access point.
Esptool.py and other programmers did not work, no flasher was found, and the controller appears hard to free from the manufacturer cloud.
The 144W rating also looks exaggerated given the small transistors marked SMD 3400.

Today, a short topic - the interior of a very cheap LED strip controller, available for purchase on a Polish auction website, offering WiFi control, remote control and playing to the rhythm of music. This time there will be a not-so-known WiFi microcontroller inside, the TR6260S1, which has only been mentioned on our forum only once or twice. At the moment, I don`t know if it`s possible to change the charge, but if I make progress, I`ll try to document what I found here.

Purchasing an LED strip
You can get the belt from the Krasław importer, although we know that it is produced in China and the importer only sticks its logo on it. Here is a screenshot of the auction:

Specification:

There are no markings on the packaging:

The set doesn`t even include a strip of tape to attach the strap:

The inside of the controller
We pry the cover and experience an unpleasant surprise - inside there is a very unknown microcontroller with WiFi:

TR6260S1... there is some information about it on the Internet:

The pinouts are also described, and there is even some information about the boot mode that reminds me of ESP:

There are RX, TX and BOT (BOOT) signals on the PCB. I experimented with them a bit, I tried using various programmers from the Internet, also using various similar exotic systems, and I even experimented with Esptool.py, but to no avail. It`s a different microcontroller.
There is also a microphone on board, which means the strap can respond to sound.

There is a step down converter in the power supply block, because something must generate 3.3V for the WiFi module from the 12V we have at the input.
The transistors have the SMD 3400 code, so probably:

During experiments:

I searched on Github, even in the source codes themselves:
https://github.com/search?q=TR6260&type=code
For example, newracom nrc7292 sdk seems to have support for this chip:
https://github.com/newracom/nrc7292_sdk
but at the moment I have the impression that something is still missing.
https://github.com/search?q=repo%3Anewracom%2Fnrc7292_sdk%20TR6260&type=code

Here is the boot log from this system:



      рШ°АЖЖЮ`ЖfАцЮ■Ю~fЮцЮШрШ``°fЮцЖxрЮАц°Ю рцЮ■~ ШЮцЮxfЖ[00:00:00.681][01-01 18:12:15 TUYA Err][light_main.c:47] led_init LED_DRIVER_PWM_CW product_type: 0x5507
 [00:00:00.690][01-01 18:12:15 TUYA Err][cmd_rgb.c:70] ++++++++++++++++++++++++ <light_cmd_init_rgb> +++++++++++++++++++++++++

 [00:00:00.702][01-01 18:12:15 TUYA Err][tuya_main.c:219] sdk info: < TUYA IOT SDK V:1.0.10 BS:40.00_PT:2.2_LAN:3.3_CAD:1.0.2_CD:1.0.0 >
< BUILD AT:2020_10_20_21_23_01 BY embed FOR ty_iot_wf_rtos_sdk AT tr6260 >
IOT DEFS < WIFI_GW:1 DEBUG:1 KV_FILE:0 SHUTDOWN_MODE:0 LI      L╣  └╚      ─╒! иг  L╣  аг     p╦  p╦  L╣  h╦     └╣  SYSTEM Task                                                  еееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееее[01-01 18:12:15 TUYA Err][tuya_main.c:108] ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 [00:00:00.764][01-01 18:12:15 TUYA Err][tuya_main.c:109] +++++++++++ BUILD: 2021-12-16-11:24:04: +++++++++++
 [00:00:00.774][01-01 18:12:15 TUYA Err][tuya_main.c:110] +++++++++++ FNAME: line_rgb_wifi_user_2.2.10 +++++++++++
 [00:00:00.783][01-01 18:12:15 TUYA Err][tuya_main.c:111] +++++++++++ FKEY: keygdg4gpysneder +++++++++++
 [00:00:00.792][01-01 18:12:15 TUYA Err][tuya_main.c:112] +++++++++++ PID: euxjqrqtzgrr2bdk +++++++++++
 [00:00:00.801][01-01 18:12:15 TUYA Err][tuya_main.c:115] +++++++++++ KEY_EN: 0, IR_EN: 1, BOOT_CNT_EN: 1, BOOT_SMART: 0, BOOT_AP: 0, CFG_FOREVER: 0, CFG_FADE: 0, LTIME: 0, WFC_LED_ON: 0, C_CS: 0, C_ON: 0, RS: 2, MIC: 1, MAGIC: 0 +++++++++++
 [00:00:00.823][01-01 18:12:15 TUYA Err][driver_pwm.c:229] ++++++++++++ RGB channel r: 0, g: 1, b: 2, pn: 0 +++++++++++
 [00:00:00.832][01-01 18:12:15 TUYA Err][tuya_main.c:117] ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 [00:00:00.846][01-01 18:12:15 TUYA Err][tuya_main.c:124] led power on cnt: 6, nc_type: 1
 [00:00:00.852]
************************************** WF_START_AP_FIRST *****************************************
 [00:00:01.645][01-01 18:12:15 TUYA Err][light_main.c:47] led_init LED_DRIVER_PWM_CW product_type: 0x5507
 [00:00:01.655][01-01 18:12:15 TUYA Err][cmd_rgb.c:70] ++++++++++++++++++++++++ <light_cmd_init_rgb> +++++++++++++++++++++++++

 [00:00:01.667][01-01 18:12:15 TUYA Err][tuya_main.c:219] sdk info: < TUYA IOT SDK V:1.0.10 BS:40.00_PT:2.2_LAN:3.3_CAD:1.0.2_CD:1.0.0 >
< BUILD AT:2020_10_20_21_23_01 BY embed FOR ty_iot_wf_rtos_sdk AT tr6260 >
IOT DEFS < WIFI_GW:1 DEBUG:1 KV_FILE:0 SHUTDOWN_MODE:0 LI      L╣  └╚      ─╒! иг  L╣  аг     p╦  p╦  L╣  h╦     └╣  SYSTEM Task                                                  еееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееееее[01-01 18:12:15 TUYA Err][tuya_main.c:108] ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 [00:00:01.728][01-01 18:12:15 TUYA Err][tuya_main.c:109] +++++++++++ BUILD: 2021-12-16-11:24:04: +++++++++++
 [00:00:01.738][01-01 18:12:15 TUYA Err][tuya_main.c:110] +++++++++++ FNAME: line_rgb_wifi_user_2.2.10 +++++++++++
 [00:00:01.748][01-01 18:12:15 TUYA Err][tuya_main.c:111] +++++++++++ FKEY: keygdg4gpysneder +++++++++++
 [00:00:01.756][01-01 18:12:15 TUYA Err][tuya_main.c:112] +++++++++++ PID: euxjqrqtzgrr2bdk +++++++++++
 [00:00:01.765][01-01 18:12:15 TUYA Err][tuya_main.c:115] +++++++++++ KEY_EN: 0, IR_EN: 1, BOOT_CNT_EN: 1, BOOT_SMART: 0, BOOT_AP: 0, CFG_FOREVER: 0, CFG_FADE: 0, LTIME: 0, WFC_LED_ON: 0, C_CS: 0, C_ON: 0, RS: 2, MIC: 1, MAGIC: 0 +++++++++++
 [00:00:01.787][01-01 18:12:15 TUYA Err][driver_pwm.c:229] ++++++++++++ RGB channel r: 0, g: 1, b: 2, pn: 0 +++++++++++
 [00:00:01.796][01-01 18:12:15 TUYA Err][tuya_main.c:117] ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 [00:00:01.810][01-01 18:12:15 TUYA Err][tuya_main.c:124] led power on cnt: 6, nc_type: 2
 [00:00:01.819]tuya_hal_get_serialno------------------------------------------
 [00:00:01.825]--tuya_hal_wifi_set_country_code:735--  [CN]
 [00:00:01.914][01-01 18:12:15 TUYA Err][boot_cnt.c:16] ******** boot count set: 6 ********

 [00:00:01.939][01-01 18:12:15 TUYA Err][light_irda.c:1373] ++++++++++++++++++++++++ <hal_ir_init> +++++++++++++++++++++++++

 [00:00:01.950][01-01 18:12:15 TUYA Err][light_irda.c:1360] ##<ir_config_init>ir_port: 21,ir_key_cnt: 24

 [00:00:01.959][01-01 18:12:15 TUYA Err][light_mic.c:377] ++++++++++++++++++++++++ <music_local_mic_init> +++++++++++++++++++++++++

 [00:00:01.971]--tuya_hal_wifi_set_work_mode:435--workmode 4
 [00:00:01.976]sniffer stop, crcerr_close
 [00:00:01.979]Ap Start Info, ssid:SmartLife-26CD passwd:[] channel:6 hidden_ssid:0 authmode:0
 [0000ff59]OK
 [00:00:01.988]
 [0000ffb4]OK 
 [0000ffe3]OK
 [00:00:01.992]
 [00010038]OK
 [00:00:02.001]
 [0001008d]OK
 [00:00:02.004]
 [000100e1]OK
 [00:00:02.006]
 [00010143]OK
 [00:00:02.009]
 [00010197]OK
 [00:00:02.012]
 [000101eb]OK
 [00:00:02.014]
 [00010241]OK
 [00:00:02.017]
 [00:00:02.019]wpa state:DISCON->SCAN.
 [00:00:02.022]vif_id:1, scanning:true
 [00:00:02.027]create task name[udp_ap_v3], stack[3584], func[40c45f8e], ret[1], handle[0024b200], prio[5]
 [00:00:02.037]vif[1],event[27]
 [00:00:03.325]vif_id:1, scanning:false
 [00:00:03.341]wpa state:SCAN->COMPLETED.
 [00:00:03.349]vif[1],event[1]
 [00:00:03.352]vif[1],event[27]
 [00:00:03.354]vif[1],event[15]
 [00:00:12.018][01-01 18:12:25 TUYA Err][boot_cnt.c:16] ******** boot count set: 0 ********

 [00:03:01.534][01-01 18:15:16 TUYA Err][wifi_cfg.c:31] ****** wifi_cfg_timeout_cb, boot_cnt: 0 ******

 [00:03:01.542]sniffer stop, crcerr_close
 [00:03:01.546][01-01 18:15:16 TUYA Err][cmd_status.c:184] app_status_clear, reason: 1
 [00:05:05.501]wait channel time. [1|4194303]

The name of the platform is clearly visible in the log: tr6260 .
Indeed, this is one of the platforms supported by Tuya:

Manufacturer	Chipset platform	Type
BEKEN	BK7231N	Tuya standard chip
Realtek	RTL8720CF	Tuya standard chip
Realtek	RTL8720DN	Tuya standard chip
Realtek	RTL8710BN	Tuya standard chip
ESWIN	TR6260	Third-party chip
AltoBeam	ATBM6431	Third-party chip
Lightning Semiconductor	LN8825	Third-party chip
Bouffalo Lab	BL602	Third-party chip

Additionally, on Aliexpress, I found a development board with a similar module, but there was no information there about what tools can be used for this TR


HLK-M20 Serial Port 2.4G WiFi Wireless Module IOT Serial to WiFi Transparent Transmission Low Power SDK M20 Development Board Ki

Photos:

TRS6260S1

Summary
Unfortunately, I have to advise against this product—unless you're fine with using the manufacturer's cloud. Personally, I was hopeful we could free it from the cloud, which would have been easy if it had an ESP8266 or ESP32 inside (then Tasmota could save us), or if it was built on BK7231N or T, BL602, XR809, W600, or W800 (then we could flash OpenBeken). What's worse, the WiFi microcontroller is directly on the PCB, so changing it to an ESP module isn't possible, and that would be irreversible anyway...
In summary, there's no room for experimentation. If any of the readers find more information about the TR6260S1, please share.
I've been researching this topic myself:
https://www.elektroda.com/rtvforum/topic3960571.html
But there are no specifics; the SDK isn't complete, and I haven't found a flasher for this version either.
If anyone knows or finds anything more, please let me know.
PS: Additionally, I have a feeling that considering the transistors inside, the 144W is a bit exaggerated, but that's already standard in these types of products...

About Author

p.kaczmarek2 wrote 14225 posts with rating 12120 , helped 647 times. Been with us since 2014 year.

Comments

Add a comment

tmf 16 Jul 2023 20:37

Since you have already described a lot of different devices, some could be flashed, some could not, I have an idea. Maybe in the section we could permanently pin a post with a table - device + infor whether... [Read more]

p.kaczmarek2 16 Jul 2023 21:07

It t something like this basically already exist? We have a topic: Global list of interior IoT devices (ESP8266, BK7231, BL602, W600, etc.) which basically links to mine electrode-friendly ... [Read more]

tmf 16 Jul 2023 21:37

I didn`t even know. Pretty cool. Tylok IMHO, it would be worth highlighting it somehow and at least making a new sticky post with information on why to reflash the firmware at all, a short guide and a... [Read more]

p.kaczmarek2 17 Jul 2023 08:34

A very good idea, although I actually had that in mind. You could also mention how to start the game, what is the cheapest, and how to control it (e.g. through the very primitive Tasmota Control for a... [Read more]

divadiow 16 Nov 2024 07:54

cross-ref. TR6260 and HLK-M20 info/downloads including SDK and programmer from this post onwards https://www.elektroda.com/rtvforum/viewtopic.php?p=21290001#21290001 [Read more]

p.kaczmarek2 17 Dec 2024 13:23

. Speaking of compatible hardware, it's time for a little update - TR6260 is newly supported! . You can flash. Details: How to sflash the TR6260 with open source software? Guide, pinout, booting... [Read more]

tlifschitz 20 May 2025 06:00

Hi! @pkaczmarek2, I have exactly this device but with BK7231N chip. I have not seen a teardown of it, should i upload one? [Read more]

p.kaczmarek2 20 May 2025 09:41

Sure, please share, along with 2MB flash backup (before pairing) [Read more]

FAQ

TL;DR: Only 1 of 366 catalogued IoT devices uses the TR6260S1, yet “TR6260 is newly supported— you can flash” [Elektroda, p.kaczmarek2, post #21352079] Expect Wi-Fi, IR and 6 A RGB output but cloud-lock until reflashed.

Why it matters: knowing chip support saves hours and money.

Quick Facts

• MCU: ESWIN TR6260S1 – 32-bit Wi-Fi SoC listed as a Tuya “third-party chip” [Elektroda, p.kaczmarek2, post #20655808] • Rated strip load: 12 V × 6 A = 72 W per channel; vendor advertises 144 W total [Elektroda, p.kaczmarek2, post #20655808] • Power rail: 12 V → 3.3 V step-down converter feeds the MCU [Elektroda, p.kaczmarek2, post #20655808] • Flash-ready pins: RX, TX, BOT; boot strapping mimics ESP logic [Elektroda, p.kaczmarek2, post #20655808] • OpenBeken database now tracks 366 devices for quick compatibility checks [Elektroda, p.kaczmarek2, post #20656640]

What microcontroller powers this LED-strip controller?

The PCB carries an ESWIN TR6260S1 Wi-Fi SoC, identified in photos and boot logs as the “tr6260” platform used by Tuya’s third-party lineup [Elektroda, p.kaczmarek2, post #20655808]

Is custom firmware finally possible on TR6260?

Yes. As of December 2024 the TR6260 gained open-source flashing support; “TR6260 is newly supported – you can flash” according to the maintainer [Elektroda, p.kaczmarek2, post #21352079]

Which tools and files do I need to flash it?

Download the programmer and SDK bundle linked from the cross-reference thread starting at post #21290001 plus the step-by-step guide in topic 4093752 [Elektroda, divadiow, #21305049; p.kaczmarek2, #21352079].

How do I put the board in boot mode?

Solder headers to RX, TX, BOT and 3.3 V / GND.
Hold BOT low while powering at 3.3 V.
Release BOT after the flasher connects. This three-step sequence matches the boot-strap table printed on the datasheet excerpt [Elektroda, p.kaczmarek2, post #20655808]

Does Tasmota work on this chip?

Not yet. Tasmota targets ESP8266/ESP32, while TR6260 uses a different core. Current community firmware choice is OpenBeken’s new TR6260 branch [Elektroda, p.kaczmarek2, post #21352079]

What real power can the controller handle?

Although marketed for 144 W, internal SOT-23 transistors (mark 3400) are rated around 4.2 A each, suggesting safe continuous power nearer 60–80 W before thermal stress [Elektroda, p.kaczmarek2, post #20655808]

Why did esptool.py fail during earlier experiments?

esptool targets Espressif chips. The author saw only garbled output and no handshake because TR6260’s bootloader is incompatible with ESP protocol [Elektroda, p.kaczmarek2, post #20655808]

Where can I check if other smart devices are reflashable?

Use the community-maintained OpenBeken device list (366 entries and growing) with a search filter for chipset and support status [Elektroda, p.kaczmarek2, post #20656640]

Is there a development board for TR6260?

Yes. The HLK-M20 dev-board exposes TR6260 pins, ships with a transparent-serial firmware and costs approx. US $7 on AliExpress (HLK-M20 Product Page).

What features rely on the on-board microphone?

The microphone feeds the ‘music_local_mic’ routine; firmware toggles LED patterns to sound peaks, confirmed by log lines like “music_local_mic_init” on boot [Elektroda, p.kaczmarek2, post #20655808]

Edge case: what fails if I flash wrong firmware?

A mismatched binary can brick Wi-Fi setup, leaving only the IR remote functional because PWM runs from a different core; recovering then needs serial reflashing under boot-strap mode [Elektroda, p.kaczmarek2, post #20655808]

I have the same controller but with BK7231N—should I post a teardown?

Yes; the maintainer requested photos plus a 2 MB flash backup before pairing to aid database accuracy [Elektroda, tlifschitz, #21554377; p.kaczmarek2, #21554501].

What’s the fastest way to start experimenting at low cost?

Buy a BK7231N or ESP8266 device (~€5), flash OpenBeken or Tasmota, then control it with the free Tasmota Control mobile app over static IP [Elektroda, p.kaczmarek2, post #20656937]