Hey all - Teardown and (WIP) flashing of OpenBeken. Amazon link: Chip: CBLC9 Notice there is a SM2335EGH chip on the LED board. (Been unable to find a datasheet.) Update: I jumped right into this without realizing that OpenBeken doesn't seem to have support for the SM2335 model (but it does...

I can add support for SM2335 right away, can you help with testing? We already have a flexible shared I2C-like library for that kind of chips. Added after 28 [minutes]:@Matt_J can you check SM2235 driver? Just try to run it? I am asking because they look very, very similar... they are the same.

I had that same thought... but it doesn't seem to be working with that driver. (Unless I have something configured incorrectly.)

Are you sure that you got SDA and SCL indexes correctly?

I feel dumb I must have misread the traces. Got it working now with one exception. The CCT temp bar is reversed of the UI - is there a flag for this? The slider works, but WW --> CW and the reverse. Will update the top post with the proper pin mappings.

There is no need for an option to reverse it, because you can just swap the Cool and Warm indices in the SM2225_Map command (or whatever it was called). The same goes for PWM-based bulbs - then you can just change channel indices.

Thanks! The below command seems to have fixed that!Code: text Expand Select all Copy to clipboardSM2235_Map 2 1 0 4 3

OpenBeken Flashing (WIP), Teardown of [BK7231N/SM2335EGH] Ledeply Smart Bulb 5W A15 RGBCW

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#1 20458591 25 Feb 2023 22:05

mattj mattj

Level 9
Post #1
20458591 25 Feb 2023 22:05

Hey all -

Teardown and (WIP) flashing of OpenBeken.

Amazon link: https://www.amazon.com/dp/B08TBZK6KF?psc=1&ref=ppx_yo2ov_dt_b_product_details

Chip: CBLC9 https://developer.tuya.com/en/docs/iot/cblc9-module-datasheet?id=Ka42cqnj9r0i5

Notice there is a "SM2335EGH" chip on the LED board. (Been unable to find a datasheet.)

Update: I jumped right into this without realizing that OpenBeken doesn't seem to have support for the SM2335 model (but it does support SM2135 and SM2235). Perhaps this is something which can be added?
Tasmota does appear to support it: https://github.com/arendst/Tasmota/blob/devel...tasmota/tasmota_xlgt_light/xlgt_09_sm2335.ino
<-- the SM2235 driver appears to work!

Instructions:
(1) Tuya Cloud Cutter worked using the following profile:
Code: text Expand Select all Copy to clipboard
oem-bk7231n-light-ty-1.3.21-sdk-2.3.3-40.00

(2) Update pin config
P7 --> SM2235DAT
P26 --> SM2235CLK

(3) Run a command via the WebApp to remap channels
Code: text Expand Select all Copy to clipboard
SM2235_Map 2 1 0 4 3
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#2 20458955 26 Feb 2023 10:11

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #2
20458955 26 Feb 2023 10:11

I can add support for SM2335 right away, can you help with testing?

We already have a flexible shared I2C-like library for that kind of chips.

Added after 28 [minutes]:

@Matt_J can you check SM2235 driver? Just try to run it?
I am asking because they look very, very similar... they are the same.

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.
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#3 20462859 28 Feb 2023 14:43

mattj mattj

Level 9

Topic author Helpful post? (0)

Post #3
20462859 28 Feb 2023 14:43

I had that same thought... but it doesn't seem to be working with that driver. (Unless I have something configured incorrectly.)
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#4 20462862 28 Feb 2023 14:47

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #4
20462862 28 Feb 2023 14:47

Are you sure that you got SDA and SCL indexes correctly?

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.
#5 20462897 28 Feb 2023 15:14

mattj mattj

Level 9

Topic author Helpful post? (0)

Post #5
20462897 28 Feb 2023 15:14

I feel dumb I must have misread the traces. Got it working now with one exception. The CCT temp bar is reversed of the UI - is there a flag for this? The slider works, but WW --> CW and the reverse.

Will update the top post with the proper pin mappings.
#6 20462975 28 Feb 2023 15:50

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

Helpful post? (0)

Post #6
20462975 28 Feb 2023 15:50

There is no need for an option to reverse it, because you can just swap the Cool and Warm indices in the SM2225_Map command (or whatever it was called). The same goes for PWM-based bulbs - then you can just change channel indices.

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.
ADVERTISEMENT
#7 20462989 28 Feb 2023 15:57

mattj mattj

Level 9
Topic author Helpful post? (0)

Post #7
20462989 28 Feb 2023 15:57

Thanks!

The below command seems to have fixed that!
Code: text Expand Select all Copy to clipboard
SM2235_Map 2 1 0 4 3
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Topic summary

The discussion revolves around the teardown and flashing of the Ledeply Smart Bulb 5W A15 RGBCW using OpenBeken firmware. The user initially noted that OpenBeken does not support the SM2335EGH chip, although it supports SM2135 and SM2235. A participant offered to add support for the SM2335 and suggested testing the SM2235 driver, which was found to be similar. After some troubleshooting regarding SDA and SCL connections, the user successfully configured the bulb, although they encountered an issue with the color temperature slider being reversed. A solution was provided to swap the Cool and Warm indices in the SM2235_Map command, resolving the issue.
Summary generated by the language model.

OpenBeken Flashing (WIP), Teardown of [BK7231N/SM2335EGH] Ledeply Smart Bulb 5W A15 RGBCW

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