[BK7231N / CB3S] Tuya Generic ih001 Led Controller Single Color

Question

Hello ,

I am trying to configure PIN on a Led Controller Single Color with CB3S chip, anyone cand help me with this?

https://github.com/tuya-cloudcutter/tuya-clou...eneric-ih001-led-controller-single-color.json

What i find is with PIN 7 as PWM brightness increase or decrease but i dont know what pin is for on or OFF only this i need.

This is what i find until now with pin 7 and 9 when i press on Button and TuyaMCu driver start.

Thanks

p.kaczmarek2 · Answer

Hello, what is the marking on this chip: Why do you think it's a TuyaMCU? Do you have a multimeter?

lionboy · Answer

Hello, On that chip write this: XL1509 -3.3E1 1385G I have a multimeter but i don't know what to do with him This is datasheet: Thanks

p.kaczmarek2 · Answer

XL1509 is not a Tuya MCU. It's a step down converter. It only powers your device. It converts 5V or 12V (depending on your device) to 3.3V for BK7231.

Please:
1. take your multimeter
2. set the continuity test mode so it beeps when probes are shorted
3. put one probe here:

4. with other probe, check each CB3S pin:

5. check all of those pins from CB3S, at which one do you get a "beep" ? Which is connected to button?

Pin number	Symbol	I/O type	Function
1	RST	I	Low-level reset, high level active (the pin has been pulled high internally), correspond to CEN of the IC
2	ADC3	AI	ADC pin, which corresponds to P23 of the IC
3	CEN	I	Enabling pin, which is pulled high internally to be compatible with other modules
4	P14	I/O	A common GPIO interface, which corresponds to P14 of the IC
5	P26	I/O	GPIOP_26, which corresponds to P26 of the IC, PWM 5
6	P24	I/O	GPIOP_24, which corresponds to P24 of the IC, PWM 4
7	P6	I/O	GPIOP_6, which corresponds to P6 of the IC, PWM 0
8	VCC	P	Power supply pin (3.3V)
9	GND	P	Power supply reference ground
10	P9	I/O	GPIOP_9, which corresponds to P9 of the IC, PWM 3
11	TXD2	I/O	UART2_TXD (used to display the module internal information), which corresponds to P0 of the IC
12	CSN	I/O	Production test control pin. If it is used as a common I/O pin, it must be connected to the VCC externally. Do not connect it to the ground before the module is powered on.
13	P8	I/O	GPIOP_8, which corresponds to P8 of the IC, PWM 2
14	P7	I/O	GPIOP_7, which corresponds to P7 of the IC, PWM 1
15	RXD1	I/O	UART1_RXD (user serial interface), which corresponds to P10 of the IC. Do not connect it to the VCC. By default, the MCU serial port should be in low-level or high-impedance state.
16	TXD1	I/O	UART1_TXD (user serial interface), which corresponds to P11 of the IC. Do not connect it to the VCC. By default, the MCU serial port should be in low-level or high-impedance state.
17	ADC3	AI	(Not recommended. If needed, please use Pin 2) ADC port, which corresponds to P23 of the IC. Programmed SPI
18	P22	I/O	(Not recommended ) GPIOP_22, which corresponds to P22 of the IC. Programmed SPI
19	CSN	I/O	The pull-up resistor is needed during usage of customers. Do not connect it to the ground before the module is powered on. Correspond to P21 of the IC.
20	P20	I/O	(Not recommended. ) GPIOP_20, which corresponds to P20 of the IC. Programmed SPI

Also please post a screenshot from OpenBeken WWW panel so I can make sure that everything else is ok.

I am creating multiplatform open source firmware (Tasmota replacement), right now supporting BK7231T, BK7231N, XR809, BL602, W800, W600, LN882H and soon supporting RTL and W701:
https://github.com/openshwprojects/OpenBK7231T
If you like my work, support me at: https://paypal.me/openshwprojects

Helpful post? Buy me a coffee.

lionboy · Answer

Hello This i find with multimeter: Pictutes from www here: Thanks

p.kaczmarek2 · Answer

Thank you, please see my image: Why do you have a Btn role on P9, while according to your test, Btn is on P23?

lionboy · Answer

It was for testing that btn there, i will change like you say to see what happen

p.kaczmarek2 · Answer

Futhermore, is PWM pin a correct pin? Can you change LED brightness here, see screenshot from my LED strip device:

lionboy · Answer

I dont know if pwm is correct, can you help me how to verify this? Thanks

p.kaczmarek2 · Answer

Do you have a LED strip connected to check if dimming works? This is single color strip - right? - so it has 1 PWM. BK7231 has only 6 PWMs, so basically... you have 6 options to try.

lionboy · Answer

Yes is single color but i saw at PIN 7 is some change on light but only when i toggle not on dimmer.

p.kaczmarek2 · Answer

This is very strange. Can you show a photo of your LED strip? Have you connected a normal LED strip to the controller or something else? How strip behaves with PWM state here, with dimmer?

lionboy · Answer

On 23 don't work like Btn, is very hard with this Added after 7 [minutes]: now ADC Pin don't work with Btn and i don't know why, is not connected to AC , i need to connect and press Btn ? Added after 31 [minutes]: Is the same schema like this one only difference is WB3S and my CB3S but there are same PIN. I check all PIN now and all is like in this image Added after 6 [minutes]: I saw this is posted by you: can you show me your configuration for PIN? Because is same like my only chip is CB3S Thanks Added after 9 [minutes]: Same PIN but don't work like yours: Added after 5 [minutes]: Check this video with Btn on PIN 1 and PWM on Pin 7 in video you will see the brightness change but Toggle on/off don't work, i don't what to control from button only from HA on/off. Added after 3 [hours] 45 [minutes]: Is the same strip who i controlled from Tuya App i didn't change, i will try with another to see if work, i have one more but is RGB I don't understand why can't use on/off because on Tuya work normal Thanks Added after 43 [minutes]: Last image with PIN, from BTN i don't find any of them One more image:

lionboy · Answer

Hello, Did you see something wrong on what i use? Thanks

p.kaczmarek2 · Answer

Hello @lionboy, can you clarify - do I understand correct: The clickable button on web page works OK: but physical button on device doesn't work: Do I understand correctly?

lionboy · Answer

Click on web only change a little bit brightness but btn from device don't work. What i want only to on or off from home assistant i don't want btn to work. Thanks

p.kaczmarek2 · Answer

With green button and brightness to the right, it should be 100% brightness: With red button, it should be off: With red button, you should have zeroes here: Code: text Expand Select all Copy to clipboard Channel 0 = 0, Channel 1 = 0, Channel 2 = 0 Can you show how it looks like for you? I need two screenshots - 1. with red button (off state), 2. with green button (on state)

lionboy · Answer

I am not at home now, on weekend i will arrive and i will give you but i told you at me pwm is at 7 and btn i think on adc

p.kaczmarek2 · Answer

@lionboy you said: Click on web page should turn off and on the device. It should be possible to set 100% brightness and 0 % brightness. If for you, click on web page only changes a little bit brightness, then issue is somewhere else - maybe wrong PWM or wrong wiring or something else strange. Even without physical button on the device, you should have 0% to 100% brightness control. From no light to full light.

lionboy · Answer

You can see in this video what do when press and change brightness:

p.kaczmarek2 · Answer

If that's a single color strip, then why do you have two channels?

lionboy · Answer

Btn was on channel 1 and Pin 7 PWM is on same channel 1. Is wrong with this?. Tomorrow i will tell someone to plug this controller and then i can acces via VPN to send image with configuration

p.kaczmarek2 · Answer

So at the moment it seems that your description of the problem was not entirely correct. You have a PWM issue. A very strange one, i must admit. If you change PWM role to relay, does setting that channel OFF turns off the light and ON turns on the lights?

lionboy · Answer

I am not at home now to test but Saturday i will test and see what happen but from tuya can control brightness is very strange after flash

lionboy · Answer

I saw at you have 2 driver start, at me i don't have any driver start. I will give you the imeage or a video with this settings today. This is as Relay on PIN7: Thanks

p.kaczmarek2 · Answer

Hello, SSDP and DGR drivers should not affect your issue. Maybe your LED strip is custom and uses two PWMs at once to control the strip, somehow?

lionboy · Answer

I will go to buy a white strip today at 12v to see if work with that What i don't understand why with Tuya App work normal on brightness and On/off and on Beken don't want Added after 51 [minutes]:Can you tell me why with PIN 7 on PWM and chn 0 i have 2 channel? maybe there are a problem with channel at me ? Added after 3 [hours] 6 [minutes]: I was to buy a white normal led strip and is same problem, i think the CB3S is problem, i will try to solder a ESP32 because this don't want to work

lionboy · Answer

Thanks for help me but i put a ESP-32 on this controller.

OpenBeken Pins:


Device configuration, as extracted from Tuya: 
- LED Cool (Channel 4) on P7
- PWM Frequency1000
Device seems to be using CB3S module, which is using BK7231N.
And the Tuya section starts, as usual, at 2023424

Esphome yaml:


esphome:
  name: upk2esphome-bk7231n

bk72xx:
  board: generic-bk7231n-qfn32-tuya

logger:

web_server:

captive_portal:

mdns:

api:
  password: ""

ota:
  password: ""

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:

output:
  - platform: libretiny_pwm
    id: output_cold
    pin: P7

light:
  - platform: monochromatic
    id: light_monochromatic
    name: Light
    output: output_cold

Thanks

[BK7231N / CB3S] Tuya Generic ih001 Led Controller Single Color

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