I just recently bought 2 strips, both mentioned 3202086.2 however one strip has a see through housing, 4 pin connection to the stip and no clear signs of a RX and TX connections (maybe I’m just blind) .
the other one is clearly the green PCB mentoined erlier whihc has 5 connections to the strip and clearly marked RX and TX markings.
this newer PCB has the RGB-white-RGB-White chip layout as mentioned earlier. The chip looks a lot like an ESP32, or clone. Was somebody already able to flash the ESP home to this chip? I whished a had a picture of this PCB, but due to circumstance I will not be home till friyday
Oke, it seems to bet the CBU-NL chip
this is the mark 3 of the LED strip, currently working on getting an extract of the chip @gamekiller095 this will give an anser on your question as well
Happymadnes
December 14, 2025, 11:50am
43
I try to get an reas out but it is still not sucsesfull. Somehow I cannot connect to the chip
rick85
December 18, 2025, 7:51pm
44
Moin guys,
Many thanks in advance and have a wonderful pre-Christmas season!
Happymadnes
December 22, 2025, 10:02pm
45
Okey, it seems that my UART USB was not working correct. new connector and i was able to export, so i will keep you updated
maartenst
January 1, 2026, 8:47am
46
I tried to buy a similar led strip but ended up with a 3202086.4, any idea if this will work too? It also has the see-through casing with a white board like mentioned earlier
thijs74
January 14, 2026, 11:10pm
47
Thanks to the ‘Twoenter Blog’ as a starting point, and this thread, I was able to flash the 10m version of the LED Strip. 3202086.3.
Configuration:
CCT light controlable in Color (WW / CW) and brightness
RGB light controlable in brightness and various scenes
MIC is working, RGB scene available
MIC level is adjustable within HA
MIC noise floor level adjustable within HA
Strip length is adjustable within HA
Created the following code with the contribution of this thread;
esphome:
name: testled
friendly_name: TestLED
bk72xx:
board: generic-bk7231n-qfn32-tuya
# Enable logging
logger:
level: INFO
# Enable Home Assistant API
api:
encryption:
key: "---------------------------"
ota:
- platform: -------
password: "-----------------------------------------"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Thijsled Fallback Hotspot"
password: "--------------------"
captive_portal:
web_server:
########################################
sensor:
- platform: adc
id: mic
pin: ADC3
internal: false #false=sensor visible in HA
name: "Mic"
update_interval: 50ms
filters:
- lambda: |-
float gain = id(mic_sensitivity).state; // waarde uit Home Assistant
return x * gain;
- lambda: |-
float gain = id(mic_sensitivity).state;
float noise = id(mic_noise_floor).state;
float v = (x - noise);
if (v < 0) v = 0;
return v * gain;
number:
- platform: template
name: "MIC gevoeligheid" #sensitivity of the mic
id: mic_sensitivity
min_value: 0.1
max_value: 5.0
step: 0.1
optimistic: true
initial_value: 1
- platform: template
id: mic_noise_floor
name: "MIC drempel waarde" #noise floor level
min_value: 0.0
max_value: 0.2
step: 0.01
optimistic: true
initial_value: 0
- platform: template
id: led_length #LED strip length
name: "LED lengte"
min_value: 1
max_value: 100 # sets the maximum
step: 1
optimistic: true
initial_value: 50
# globale variables
globals:
- id: cct_brightness # Brightness CCT Lamp
type: float
initial_value: '1.0'
- id: cct_temp # Color temperature CCT Lamp, 0=cold 1=warm
type: float
initial_value: '1'
# output
output:
- platform: gpio # output is a power-relay, to switch the LED strip
id: power
pin: P22
# Template CCT
- platform: template # Virtual output sets CCT color temperature
id: cct_temp_out
type: float
write_action:
- lambda: |-
// state ist 0..1 (0=cold, 1=warm) laut color_temperature-Output-API
id(cct_temp) = state;
float b = id(cct_brightness);
float ratio = state; // 0 -> cold, 1 -> warm
float ww = ratio;
float cw = 1.0f - ratio;
auto call = id(cct_raw).make_call();
call.set_state(true);
call.set_brightness(b); // brightness
call.set_red_if_supported(cw); // CW on red
call.set_green_if_supported(ww); // WW on green
call.set_blue_if_supported(0.0);
call.perform();
- platform: template # Virtual output sets CCT brightness
id: cct_bri_out
type: float
write_action:
- lambda: |-
id(cct_brightness) = state;
float t = id(cct_temp);
float ratio = t;
float ww = ratio;
float cw = 1.0f - (0.5 * ratio);
auto call = id(cct_raw).make_call();
call.set_state(true);
call.set_brightness(state);
call.set_red_if_supported(cw);
call.set_green_if_supported(ww);
call.set_blue_if_supported(0.0);
call.perform();
# Lampen in Home Assistant
light:
- platform: color_temperature # CCT light in Home Assistant
id: cct_light
name: "CCT"
color_temperature: cct_temp_out
brightness: cct_bri_out
warm_white_color_temperature: 2700 K
cold_white_color_temperature: 6500 K
on_turn_on:
then:
- if:
condition:
- light.is_on: rgb_light
then:
- light.turn_off: rgb_light
- output.turn_on: power
on_turn_off:
then:
- if:
condition:
- light.is_off: rgb_light
then:
- delay: 1s
- output.turn_off: power
- platform: beken_spi_led_strip # Fysical LED strip
id: RGBIC_CCTIC_ledstrip
rgb_order: GRB
pin: 16
num_leds: 100
chipset: SM16703
name: None
internal: true
- platform: partition # RGB light in HA
id: rgb_light
name: "RGB"
internal: false # false =visible in HA
on_turn_on:
then:
- if:
condition:
- light.is_on: cct_light
then:
- light.turn_off: cct_light
- output.turn_on: power
on_turn_off:
then:
- if:
condition:
- light.is_off: cct_light
then:
- delay: 1s
- output.turn_off: power
effects:
- random:
- pulse:
- flicker:
- addressable_rainbow:
- addressable_color_wipe:
- addressable_scan:
- addressable_twinkle:
- addressable_random_twinkle:
- addressable_fireworks:
- addressable_lambda:
name: "Sound Rainbow Effect"
update_interval: 50ms
lambda: |-
float mic_level = id(mic).state;
float normalized = min(mic_level, 1.0);
int length = id(led_length).state;
int strip_size = it.size();
// Veiligheid
if (length > strip_size) length = strip_size;
// Automatisch midden
int center = length / 2;
// Hoe ver het effect mag uitwaaieren
int max_distance = floor(normalized * (length / 2));
for (int i = 0; i < strip_size; i++) {
if (i >= length) {
it[i] = Color(0, 0, 0); // LEDs buiten de ingestelde lengte uit
continue;
}
int distance = abs(i - center);
if (distance <= max_distance) {
float hue = (float)i / length * 360.0;
float h = hue;
float s = 1.0;
float v = 1.0;
int sector = ((int)floor(h / 60.0)) % 6;
float f = (h / 60.0) - floor(h / 60.0);
float p = v * (1.0 - s);
float q = v * (1.0 - f * s);
float t = v * (1.0 - (1.0 - f) * s);
float r, g, b;
if (sector == 0) { r = v; g = t; b = p; }
else if (sector == 1) { r = q; g = v; b = p; }
else if (sector == 2) { r = p; g = v; b = t; }
else if (sector == 3) { r = p; g = q; b = v; }
else if (sector == 4) { r = t; g = p; b = v; }
else { r = v; g = p; b = q; }
it[i] = Color(r * 255, g * 255, b * 255);
} else {
it[i] = Color(0, 0, 0);
}
}
# Hier worden de secties van de LED strip gemaak, de secties worden gekoppeld aan het ID RGB_LIGHT
segments:
# ALL RGB LEDS IN 1 LIGHT,RGB LEDS AT EVEN ADDRESSES
- id: RGBIC_CCTIC_ledstrip
from: 0
to: 0
- id: RGBIC_CCTIC_ledstrip
from: 2
to: 2
- id: RGBIC_CCTIC_ledstrip
from: 4
to: 4
- id: RGBIC_CCTIC_ledstrip
from: 6
to: 6
- id: RGBIC_CCTIC_ledstrip
from: 8
to: 8
- id: RGBIC_CCTIC_ledstrip
from: 10
to: 10
- id: RGBIC_CCTIC_ledstrip
from: 12
to: 12
- id: RGBIC_CCTIC_ledstrip
from: 14
to: 14
- id: RGBIC_CCTIC_ledstrip
from: 16
to: 16
- id: RGBIC_CCTIC_ledstrip
from: 18
to: 18
- id: RGBIC_CCTIC_ledstrip
from: 20
to: 20
- id: RGBIC_CCTIC_ledstrip
from: 22
to: 22
- id: RGBIC_CCTIC_ledstrip
from: 24
to: 24
- id: RGBIC_CCTIC_ledstrip
from: 26
to: 26
- id: RGBIC_CCTIC_ledstrip
from: 28
to: 28
- id: RGBIC_CCTIC_ledstrip
from: 30
to: 30
- id: RGBIC_CCTIC_ledstrip
from: 32
to: 32
- id: RGBIC_CCTIC_ledstrip
from: 34
to: 34
- id: RGBIC_CCTIC_ledstrip
from: 36
to: 36
- id: RGBIC_CCTIC_ledstrip
from: 38
to: 38
- id: RGBIC_CCTIC_ledstrip
from: 40
to: 40
- id: RGBIC_CCTIC_ledstrip
from: 42
to: 42
- id: RGBIC_CCTIC_ledstrip
from: 44
to: 44
- id: RGBIC_CCTIC_ledstrip
from: 46
to: 46
- id: RGBIC_CCTIC_ledstrip
from: 48
to: 48
- id: RGBIC_CCTIC_ledstrip
from: 50
to: 50
- id: RGBIC_CCTIC_ledstrip
from: 52
to: 52
- id: RGBIC_CCTIC_ledstrip
from: 54
to: 54
- id: RGBIC_CCTIC_ledstrip
from: 56
to: 56
- id: RGBIC_CCTIC_ledstrip
from: 58
to: 58
- id: RGBIC_CCTIC_ledstrip
from: 60
to: 60
- id: RGBIC_CCTIC_ledstrip
from: 62
to: 62
- id: RGBIC_CCTIC_ledstrip
from: 64
to: 64
- id: RGBIC_CCTIC_ledstrip
from: 66
to: 66
- id: RGBIC_CCTIC_ledstrip
from: 68
to: 68
- id: RGBIC_CCTIC_ledstrip
from: 70
to: 70
- id: RGBIC_CCTIC_ledstrip
from: 72
to: 72
- id: RGBIC_CCTIC_ledstrip
from: 74
to: 74
- id: RGBIC_CCTIC_ledstrip
from: 76
to: 76
- id: RGBIC_CCTIC_ledstrip
from: 78
to: 78
- id: RGBIC_CCTIC_ledstrip
from: 80
to: 80
- id: RGBIC_CCTIC_ledstrip
from: 82
to: 82
- id: RGBIC_CCTIC_ledstrip
from: 84
to: 84
- id: RGBIC_CCTIC_ledstrip
from: 86
to: 86
- id: RGBIC_CCTIC_ledstrip
from: 88
to: 88
- id: RGBIC_CCTIC_ledstrip
from: 90
to: 90
- id: RGBIC_CCTIC_ledstrip
from: 92
to: 92
- id: RGBIC_CCTIC_ledstrip
from: 94
to: 94
- id: RGBIC_CCTIC_ledstrip
from: 96
to: 96
- id: RGBIC_CCTIC_ledstrip
from: 98
to: 98
## ALL CCT LEDS IN 1 LIGHT
# Hier worden de secties van de LED strip gemaak, de secties worden gekoppeld aan het ID CCT_RAWRGB zit op de even adressen
- platform: partition
id: cct_raw
internal: True # deze virtuele lamp is niet zichtbaar in Home Assistant
segments:
# CCT LEDS AT ODD ADDRESSES
- id: RGBIC_CCTIC_ledstrip
from: 1
to: 1
- id: RGBIC_CCTIC_ledstrip
from: 3
to: 3
- id: RGBIC_CCTIC_ledstrip
from: 5
to: 5
- id: RGBIC_CCTIC_ledstrip
from: 7
to: 7
- id: RGBIC_CCTIC_ledstrip
from: 9
to: 9
- id: RGBIC_CCTIC_ledstrip
from: 11
to: 11
- id: RGBIC_CCTIC_ledstrip
from: 13
to: 13
- id: RGBIC_CCTIC_ledstrip
from: 15
to: 15
- id: RGBIC_CCTIC_ledstrip
from: 17
to: 17
- id: RGBIC_CCTIC_ledstrip
from: 19
to: 19
- id: RGBIC_CCTIC_ledstrip
from: 21
to: 21
- id: RGBIC_CCTIC_ledstrip
from: 23
to: 23
- id: RGBIC_CCTIC_ledstrip
from: 25
to: 25
- id: RGBIC_CCTIC_ledstrip
from: 27
to: 27
- id: RGBIC_CCTIC_ledstrip
from: 29
to: 29
- id: RGBIC_CCTIC_ledstrip
from: 31
to: 31
- id: RGBIC_CCTIC_ledstrip
from: 33
to: 33
- id: RGBIC_CCTIC_ledstrip
from: 35
to: 35
- id: RGBIC_CCTIC_ledstrip
from: 37
to: 37
- id: RGBIC_CCTIC_ledstrip
from: 39
to: 39
- id: RGBIC_CCTIC_ledstrip
from: 41
to: 41
- id: RGBIC_CCTIC_ledstrip
from: 43
to: 43
- id: RGBIC_CCTIC_ledstrip
from: 45
to: 45
- id: RGBIC_CCTIC_ledstrip
from: 47
to: 47
- id: RGBIC_CCTIC_ledstrip
from: 49
to: 49
- id: RGBIC_CCTIC_ledstrip
from: 51
to: 51
- id: RGBIC_CCTIC_ledstrip
from: 53
to: 53
- id: RGBIC_CCTIC_ledstrip
from: 55
to: 55
- id: RGBIC_CCTIC_ledstrip
from: 57
to: 57
- id: RGBIC_CCTIC_ledstrip
from: 59
to: 59
- id: RGBIC_CCTIC_ledstrip
from: 61
to: 61
- id: RGBIC_CCTIC_ledstrip
from: 63
to: 63
- id: RGBIC_CCTIC_ledstrip
from: 65
to: 65
- id: RGBIC_CCTIC_ledstrip
from: 67
to: 67
- id: RGBIC_CCTIC_ledstrip
from: 69
to: 69
- id: RGBIC_CCTIC_ledstrip
from: 71
to: 71
- id: RGBIC_CCTIC_ledstrip
from: 73
to: 73
- id: RGBIC_CCTIC_ledstrip
from: 75
to: 75
- id: RGBIC_CCTIC_ledstrip
from: 77
to: 77
- id: RGBIC_CCTIC_ledstrip
from: 79
to: 79
- id: RGBIC_CCTIC_ledstrip
from: 81
to: 81
- id: RGBIC_CCTIC_ledstrip
from: 83
to: 83
- id: RGBIC_CCTIC_ledstrip
from: 85
to: 85
- id: RGBIC_CCTIC_ledstrip
from: 87
to: 87
- id: RGBIC_CCTIC_ledstrip
from: 89
to: 89
- id: RGBIC_CCTIC_ledstrip
from: 91
to: 91
- id: RGBIC_CCTIC_ledstrip
from: 93
to: 93
- id: RGBIC_CCTIC_ledstrip
from: 95
to: 95
- id: RGBIC_CCTIC_ledstrip
from: 97
to: 97
- id: RGBIC_CCTIC_ledstrip
from: 99
to: 99
type or paste code here
1 Like
Hi Maarten,
Mr_Q
February 8, 2026, 7:46pm
49
I just opened one… CBU-NL inside.
It seems I need to solder these pads like this for flashing, am I right? Based on Tuya CBU-NL documentation:
CEN to GND correct (short before backup & flash)?
Did you also have to solder the pads on the right? I have solder experience but not with the extremly tiny pads on the right-side. I see no solder pads on the bottom. Any tips (e.g. which materials to use) ?
Additional update/info: no solder pads on the bottom of the PCB except for + and -:
tureka
February 16, 2026, 7:04am
50
Hi!
HI this is indeed the same module as I had shown, but I had desolder the CBU-NL chip. this is just the beken chip
Hi all,GitHub - BasvanderHelm/LSC-in-ESP-Home
2 Likes
Mr_Q
February 22, 2026, 8:32pm
55
The pinout I gave earlier above, is indeed correct for the 3202086.4 LSC ledstrip (CBU-NL). I managed to backup the firmware. Then I was able to flash it with ESPHome firmware (first to OpenBeken then OTA the esphome firmware), solderless with my self-made 3d printed jig and some pogo pins…
I used the code from you git @Happymadnes . I used ‘203202086_3’ as a base. All worked, except that green and blue are swapped. So I changed ‘rgb_order: GRB’ to ‘rgb_order: BRG’ and now it’s good! Is that specific to the .4 or was that already wrong in your case too?
The microphone works (the Sound Rainbow effect) too. I was wondering, would it be possible to make the infrared work as well?
Will investigate myself too, but since you’ve been working on this already…
Thank you for sharing the code!
Mr_Q
February 22, 2026, 9:28pm
56
I actually also had to change the ‘cct_temp_out’ and ‘cct_bri_out’ to make the ‘w’-led work. The warm-white is actually ran by the ‘blue’ color not ‘green’ in my case. Since I had to swap the color for the RGB-leds too, this was sort of expected.
tureka
February 23, 2026, 10:15pm
60
Sorry for mess with deleted posts. My final code. Restored functions. I hope someone will make it perfect: GitHub - tureka/LSC-10m-Smart-LED-Strip-RGB-CCT: ESPHome code for LSC 10m Smart LED Strip RGB/CCT
RadoZA
March 18, 2026, 7:31am
61
Hi, nice work all of you. I have same LED strip, but I bought 20m version. How can I easily connect it to my HA ? Unfortunately I can’t see version number
Anyone can write step by step procedure to flash and connect it to HA ?
Thanks.
Update 2026-03-28 – Thanks for all the help. I successfully flashed it and integrated it into Home Assistant. It took me 6 hours, but it was worth it.
@radoZA Connect RX/TX of the CBU-NL chip to a USB TTL adapter and connect it to BK7231 GUI tool. See if it’s recognised and try to flash a basic ESPHome config. Afterwards you can try the configs from this thread to see if it works. Like the same I did: Flash LSC’s addressable LED strip with ESPHome and use it in Home Assistant - twoenter blog
