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

p.kaczmarek2 16 Jul 2023 06:56 8 2832 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 14649 posts with rating 12661 , helped 655 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: This FAQ explains a 12 V, 6 A Smart Life RGB controller for buyers and modders. The early verdict was "no room for experimentation," because the board used a TR6260S1 Wi‑Fi chip instead of ESP8266, ESP32, or BK7231N. A later update says TR6260 is now supported and can be flashed with open-source software. [#21352079]

Why it matters: It helps you avoid cloud-locked LED controllers, identify mod-friendly hardware, and choose the right platform for local control.

Platform	Status in this device context	Open-source path mentioned	Best use case
TR6260S1 / TR6260	Initially hard to reflash; supported from 17 Dec 2024	Dedicated TR6260 flashing guide	Existing TR6260 hardware
BK7231N	Treated as a known, mod-friendly alternative	OpenBeken	Local control with easier community support
ESP8266 / ESP32	Not in this unit, but preferred by modders	Tasmota	Simple cloud-free conversion when present

Key insight: The thread started as a warning against a cloud-dependent TR6260S1 controller, but the later update changed the verdict: TR6260 became flashable with open-source tools, so the platform is no longer a dead end. [#21352079]

Quick Facts

The advertised controller spec shown in the thread is 144 W, 6 A RGB, and the board is powered from 12 V. That matters because current handling, transistor choice, and thermal margin decide whether the rating is realistic. [#20655808]
The PCB exposes RX, TX, and BOT/BOOT pads and includes a power stage that steps 12 V down to 3.3 V for the Wi‑Fi section. Those test points are the main entry path for UART work and boot-mode experiments. [#20655808]
The boot log identifies Tuya IoT SDK V:1.0.10, build string 2020_10_20_21_23_01, firmware build 2021-12-16-11:24:04, and feature flags showing IR_EN: 1 and MIC: 1. [#20655808]
The IR subsystem reports 24 keys, and first-boot AP mode starts SmartLife-26CD on channel 6 with an empty password in the log. That confirms both local pairing mode and remote-control support. [#20655808]
The OpenBeken device list already had 366 entries when discussed in July 2023, with search by model, description, and tags plus links back to teardown threads. [#20656640]

1. What is the TR6260S1 WiFi microcontroller, and how does it differ from more common IoT chips like ESP8266, ESP32, and BK7231N?

TR6260S1 is a less common Wi‑Fi microcontroller used here as a Tuya platform chip, not an ESP-family part. "TR6260S1" is a Wi‑Fi microcontroller that runs Tuya-based firmware, exposes UART-style boot signals, and differs from ESP8266, ESP32, and BK7231N because common ESP flashing tools did not work on it in the original teardown. The thread also classifies TR6260 as an ESWIN third-party chip in Tuya’s platform list, while BK7231N is treated as a standard, better-known modding target. [#20655808]

2. How can I identify whether a smart LED strip controller uses a TR6260S1 or a BK7231N before buying or opening it?

You usually cannot confirm TR6260S1 versus BK7231N from the retail packaging alone. The shown package had no useful markings, and the importer branding did not reveal the actual chip. The reliable method is to open the controller and read the module or chip marking directly. If you later see UART pads and a board layout matching known teardowns, compare it against the OpenBeken device list and related Elektroda threads before buying more units. [#20655808]

3. Why was this 144W RGB LED strip controller originally considered difficult to reflash with open-source firmware?

It was difficult because the controller used a TR6260S1, and the author could not find a complete SDK or working flasher at first. Tests with internet programmers, exotic chip tools, and esptool.py all failed. The board also placed the Wi‑Fi microcontroller directly on the PCB, so swapping in an ESP module was not practical. That combination made the first conclusion very negative for cloud-free modding. [#20655808]

4. How do you access UART on the TR6260S1 LED controller PCB, and what are the RX, TX, and BOT or BOOT pins used for?

You access UART through the labeled PCB pads for RX, TX, and BOT or BOOT. RX and TX are the serial receive and transmit lines used to capture logs and talk to the chip. BOT or BOOT is the boot-mode selection signal, similar in purpose to ESP-style strap pins. The thread confirms those pads exist on the board and were used for experiments with serial tools, even though early flashing attempts did not succeed. [#20655808]

5. What does the TR6260 boot log reveal about the firmware, Tuya platform, and hardware features of the controller?

The boot log shows this controller runs Tuya firmware on the tr6260 platform and enables both IR and microphone features. It reports Tuya IoT SDK V:1.0.10, firmware name line_rgb_wifi_user_2.2.10, build 2021-12-16-11:24:04, and product type 0x5507. It also logs IR_EN: 1, MIC: 1, RGB channel r: 0, g: 1, b: 2, and an AP named SmartLife-26CD on channel 6. Those details confirm cloud pairing logic, sound-reactive hardware, and RGB PWM mapping. [#20655808]

6. How does the built-in microphone work in this Smart Life RGB strip controller, and what kind of music-reactive mode does it support?

The built-in microphone enables a local sound-reactive lighting mode. The thread shows a physical microphone on the PCB and a boot log entry for music_local_mic_init, which confirms the firmware initializes microphone-based effects. That means the strip can react to nearby sound rather than only app commands or IR input. The exact animation set is not enumerated in the thread, but music response is explicitly advertised and supported by the hardware log. [#20655808]

7. Which open-source tools, SDKs, or programmers are available for TR6260 and HLK-M20 modules now?

There are now community references for TR6260 and HLK-M20, including SDK and programmer links. A later post points readers to a cross-reference thread with TR6260 and HLK-M20 info/downloads including SDK and programmer. Another update states that TR6260 is newly supported and links to an open-source flashing guide. That means the situation changed between July 2023 and December 17, 2024, from “no working path found” to “you can flash.” [#21352079]

8. What is OpenBeken, and how is it used with supported Tuya-based LED strip controllers?

OpenBeken is open-source firmware used to replace vendor cloud firmware on supported Tuya-style devices for local control. "OpenBeken" is open-source device firmware that runs on selected IoT chips, offers local configuration and MQTT-style integration, and includes a web app plus a searchable device list linking hardware to teardown and support information. In the thread, it is presented as the preferred path for supported controllers such as BK7231-based devices, and later as part of the broader ecosystem around compatible hardware discovery. [#20656640]

9. What is the OpenBeken device list, and how do I use it to check whether a specific smart device is reflashable?

The OpenBeken device list is a community-maintained searchable database of smart devices and their support status. You use it by searching model name, description, or tags, then opening the linked forum thread for the exact hardware variant. The thread says the list had 366 entries at that time and included both supported and unsupported products, plus quick links from the web app to device discussions. That makes it the fastest first check before buying or opening a controller. [#20656640]

10. TR6260 vs BK7231N for smart LED strip controllers — which platform is better for local control and firmware modding?

BK7231N was the better platform in the thread’s practical modding context, especially before December 2024. The author explicitly said ESP8266, ESP32, BK7231N, BL602, XR809, W600, and W800 would have offered a clearer escape path through Tasmota or OpenBeken, while TR6260S1 originally did not. An important edge case changed later: TR6260 support arrived on 17 Dec 2024. Even so, BK7231N remains the safer choice when you want established community workflows and easier local control. [#21352079]

11. How do I flash a TR6260 with open-source software, including pinout and boot mode steps?

You can now flash TR6260 with open-source software, but you should follow the dedicated guide linked in the thread. Use this sequence: 1. Identify the board pads for RX, TX, and BOT/BOOT. 2. Enter the chip’s boot mode using the BOOT signal and serial connection. 3. Follow the linked TR6260 guide for the exact programmer and flashing procedure. The thread does not reproduce the full command set here, but it confirms a dedicated guide exists specifically for pinout, booting, and flashing. [#21352079]

12. Why did esptool.py and ESP-style flashing methods not work on the TR6260S1 controller?

They failed because TR6260S1 is not an ESP8266 or ESP32 and does not use the same flashing protocol. The author tried esptool.py, various online programmers, and tools for other uncommon chips, but none succeeded. The boot behavior looked ESP-like because of the BOOT signal, yet the protocol and tooling were different. That is a classic failure case: similar UART pads do not guarantee ESP compatibility. [#20655808]

13. What hardware inside this RGB controller suggests the advertised 144W power rating may be exaggerated?

The output stage raises doubts because the board uses transistors marked 3400, and the author questioned whether they justify a full 144 W claim. At 12 V and 6 A, the controller would need solid thermal and current margin across the switching path. The post does not publish measured temperatures or current tests, so the concern is based on the visible power hardware rather than a completed load validation. That makes the rating look optimistic, not verified. [#20655808]

14. Where can I find a community-maintained list of compatible IoT hardware, support status, and links to teardown threads for Elektroda and OpenBeken?

You can find it in the OpenBeken web app device list referenced from the Elektroda discussion. The thread says it is a GitHub-hosted, community-built list with search by model, description, and tags, one photo per device, and links back to the matching Elektroda topics. It also notes that supported products can expose device-list access from the firmware web app itself. That makes it both a compatibility index and a navigation layer for teardown research. [#20656640]

15. What should I upload when sharing a teardown of the BK7231N version of this LED strip controller, and why is a 2MB flash backup before pairing important?

You should upload the teardown photos and a 2 MB flash backup before pairing the device. The requested backup preserves the factory image before the cloud app writes settings, keys, or account-linked data. That baseline helps compare board variants, recover original firmware, and study differences between the BK7231N version and the TR6260 version. The thread’s guidance is short but precise: share the teardown and save the dump before first pairing. [#21554501]