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Nous Smart WiFi Bulb P3 RGBCW - CB2L + BP5758 - firmware change

p.kaczmarek2  Cool? (+2)

Hello, today another short topic about changing the firmware of an LED light, this time Nous, model P3-A60-RGB-CCT. In this product, I found a CB2L module (BK7231N), which programming pads have on the bottom, and unfortunately I had to solder it all out to get to them. In addition, there is a BP5758 LED driver in this light, which communicates with the WiFi module via their modified version of I2C. I will change the firmware to OpenBeken , which already supports the BP5758.
Below the packaging and instructions for the light:



Pairing with the manufacturer's app
The QR code from the packaging indicates some sort of Nous app, But I tried the Tuya app - it was able to pair.
The pairing mode starts in a standard way - turning the power of the light on and off five times. In the Tuya panel:

With the Tuya app, everything works. I do not discuss the Tuya app in detail, as this has been on the forum more than once.

Interior of Nous P3 RGBCW I got the lamp from a fellow forum member, So it was already open.

Markings on the plastic:

Board with power supply and WiFi module:


CB2L module:

Inputs:
[table:87782a3016] [tr:87782a3016] [td:87782a3016] [td:87782a3016]. 1[/td:87782a3016] [td:87782a3016] P8[/td:87782a3016] [td:87782a3016] I/O[/td:87782a3016] [td:87782a3016] [td:87782a3016] Support hardware PWM[/td:87782a3016] [/tr:87782a3016] [tr:87782a3016] [td:87782a3016] 2[/td:87782a3016] [td:87782a3016] 2[/td:87782a3016] [td:87782a3016] 2 P7[/td:87782a3016] [td:87782a3016] I/O[/td:87782a3016] [td:87782a3016] Support hardware PWM[/td:87782a3016] [/tr:87782a3016] [tr:87782a3016] [td:87782a3016] 3[td:87782a3016] 3[/td:87782a3016] [td:87782a3016] P6[/td:87782a3016] [td:87782a3016] [td:87782a3016] I/O[/td:87782a3016] [td:87782a3016] Support hardware PWM[/td:87782a3016] [/tr:87782a3016] [tr:87782a3016] [td:87782a3016] 4[/td:87782a3016] [td:87782a3016] P26[/td:87782a3016] [td:87782a3016] I/O[/td:87782a3016] [td:87782a3016] Support hardware PWM[/td:87782a3016] [/tr:87782a3016] [tr:87782a3016]
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p.kaczmarek2
p.kaczmarek2 wrote 12320 posts with rating 10207 , helped 583 times. Been with us since 2014 year.

Comments

Mateusz_konstruktor 12 Sep 2022 01:56

Internal software capabilities have undeniably been increased, but what about the case? https://obrazki.elektroda.pl/8567268200_1662742141_thumb.jpg :?: . [Read more]

p.kaczmarek2 12 Sep 2022 07:59

As I wrote in the content of the topic - I got the lights from a colleague in the forum, for which I thank him, of course. They just already came to me in the form of such a "tailpiece". But the others... [Read more]

Mateusz_konstruktor 12 Sep 2022 12:18

As it stands now, it is no longer a lamp, due to the damaged housing. We have a collection of components. Yes do that and describe YOUR workmanship of restoring it to a usable condition If even... [Read more]

khoam 12 Sep 2022 21:59

The funny thing is that tuya-cloudcutter takes advantage of a bug (vulnerability) in the SDK for BK7231, which causes an out-of-memory exception. The authors informed Tuya of this bug in February this... [Read more]

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