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Interior and firmware change of the SB527 roller shutter controller - version 2023.04.13, comparison

p.kaczmarek2 
QS-WIFI-ECC02 Wi-Fi curtain controller in an open package. .
I will show here the inside of another roller shutter controller, this time with a PCB dated 2023.04.13. This will be a newer version of the RTX WCM1MR controller shown some time ago, dated 2022.12.26. I will upload open firmware to it so as to free it from the cloud and allow further configuration on my own.

NOTE: This product is a newer version of the RTX WCM1MR , so I'll cut the commentary here a bit short.

The whole thing was bought for about £60, here's the packaging including the markings - SB527:
Packaging of QS-WIFI-ECC02 curtain controller module with technical specifications. .
Marking on the module itself: QS-WIFI-ECC02
Instructions:
User manual for the QS-WIFI-ECC02 Wi-Fi curtain module with technical specifications. Illustration from the installation and user manual for a WiFi module for controlling blinds. .
QS-WIFI-ECC02 shutter controller installation manual. User manual of the WiFi module with QR code for the Tuya Smart app. .

Tuya tests omitted, let's lift the lid:
White casing of a shutter controller on a wooden background. .
Interior:
Interior of a shutter controller with visible PCB. .
The power supply is based on the BP2571.
Close-up of the interior of a shutter controller with visible BP2571 power supply on the PCB. .
Power supply schematic based on BP257X .
Here is the WiFi module:
Interior of QS-WIFI-ECC02 shutter controller with WiFi module and PCB components WiFi module on the PCB inside a shutter controller. .
For details of this module I refer to RTX WCM1MR .
The rest is also according to the mentioned theme:
Close-up of CBLC9S WiFi module in a roller shutter controller. Interior of a shutter controller with a WiFi module and electronic components Interior of a roller shade controller with a PCB dated 2023.04.13. .
The only difference I've spotted is a small modification to the WiFi module - there was previously a CBLC9, now there is a CBLC9S:
CBLC9S WiFi module with roller shutter controller PCB. .
Someone on our forum has come across a similar module before:
https://www.elektroda.pl/rtvforum/topic4028394.html#20907548

6d035bb6c Changing the QS-WIFI-ECC02/SB527 firmware .
The WiFI module needs to be soldered, preferably using flux and braid, and then you can use our flasher:
https://github.com/openshwprojects/BK7231GUIFlashTool
As with RTX WCM1MR .
Photo report:
bb056a3c9 CBLC9S WiFi module on a wooden surface Close-up of the CBLC9S WiFi module on a wooden surface. The image shows a QS-WIFI-ECC02 electronic module with wires on a wooden background. CBLC9S module on a wooden surface with attached wires. Electronic module on a wooden table next to a prototype board with wires. .
The OBK template is as in RTX WCM1MR :
Code: JSON
Log in, to see the code
.

6d035bb6c Summary .
Basically not much has changed, I am posting the topic informatively for those searching by model name for this version of this device. The status as of 2023.04.13 shows that Tuya has only changed the CBLC9 module to the similar CBLC9S, the rest unchanged.
Of course, such a controller requires additional scripting to work with roller shutters, I have only given here the GPIO roles themselves, but this scripting was already discussed in other topics:
https://www.elektroda.com/rtvforum/topic3972935.html
https://www.elektroda.com/rtvforum/topic4015497.html#20910126
That's it from my side - maybe someone will find it useful. If anyone finds a newer version of this product, please let me know.
About Author
p.kaczmarek2
p.kaczmarek2 wrote 11921 posts with rating 9984 , helped 572 times. Been with us since 2014 year.

Comments

chemik_16 30 Nov 2024 22:49

I also have about 5 of these, fixed price on Ali around 4.5$. I have not tested them yet, I understand that the switches should be shorted to the phase as shown in the picture ? this seemed a bit strange... [Read more]