Bought here https://www.aliexpress.com/item/4000080534824.html Was looking for 2 channel CCT LED for my DIY pendant dinner room to be integrated in HomeAssistance through ESPHome (as my favourite one) however, inside found Beken chip.
How should I solder in order to Flash by USB-UART?
btw. actullay why I can't use ESPHome binaries? I mean from one hand is kind of copy ESP8266 but no? what are diffrent, where I can find comparison article?
It's a totally different microcontroller architecture. Please solder GND, TXD1, RXD1, then use our tool:
https://github.com/openshwprojects/BK7231GUIFlashTool to read backup and flash.
The procedure is simple:
- start read backup and flash in tool
- disconnect and reconnect power from the strip
- wait for flashing to finish
Here is a silk for WB3S bot:
Pin No.
Symbol
I/O type
Function
1
CEN
I
Low-level reset, high-level active (internally pulled high) Docking IC-CEN
2
ADC3
AI
ADC pin, which is connected to the P23 pin on the internal IC
3
EN
Input
Enabling pin, which is internally pulled up and compatible with other module design
4
P14
I/O
Common GPIO, which is connected to the P14 pin on the internal IC
5
PWM5
I/O
GPIOP_26, which is connected to the P26 pin on the internal IC
6
PWM4
I/O
GPIOP_24, common GPIO, which is connected to the P24 pin on the internal IC
7
PWM0
I/O
GPIOP_6, which is connected to the P6 pin on the internal IC
8
VCC
P
Power supply pin (3.3 V)
9
GND
P
Power supply reference ground pin
10
PWM1
I/O
GPIOP_7, which is connected to the P7 pin on the internal IC
11
TXD2
I/O
UART2_TXD, which is used to display the internal information of the module and connected to the P0 on the internal IC. Unavailable to customers.
12
RXD2
I/O
UART2_RXD, which is used to display the internal information of the module and connected to the P1 on the internal IC. Unavailable to customers.
13
PWM3
I/O
GPIOP_9, common GPIO, which is connected to the P9 pin on the internal IC
14
PWM2
I/O
GPIOP_8, which is connected to the P8 pin on the internal IC
15
RXD1
I/O
UART1_RXD, which is used as a user-side serial interface pin and is connected to the P10 pin on the internal IC
16
TXD1
I/O
UART1_TXD, which is used as a user-side serial interface pin and is connected to the P11 pin on the internal IC
Check which PWM pins are used for which colour channels and provide information in the first post.
Please attach some screenshots from the offer to the first post, because link will most likely expire soon.