[BL602] [SM2135] Surplife APP RGB+WW+CW bulb
This a $5.2 bulb I got from Amazon.sa
Unfortunately, this bulb seems to be a no name brand but it does use the Surplife APP. Sorry I don't have further information about it.
I was hoping to get BK7231T or BK7231N just so I can try Tuya Cloudcutter but this bulb came with a BL602 module BL-M5 V1.2
The bulb also uses a SM2135 LED Controller
Since this is a BL602 chip I had to remove the module from the board to get to the flashing pins on the back of the module
I used a soldering iron to remove it but I think it would be easier with a hot air station.
To flash the chip, I used USB to TTL adapter
TX -- RX
RX -- TX
Ground -- Ground
3.3 V -- 3.3V
Boot -- 3.3 only during flashing (I see other post saying a 10k resistor should be used but I couldn’t get the flashing complete unless I connected boot to 3.3v directly)
Here is more detailed post
https://www.elektroda.com/rtvforum/topic3889041.html
After flashing this is the pins for this bulb
This is the second bulb I have with BL602 (first on is a sonoff B05-BL-A19), with both bulb the brightness is low after flashing OpenBeken.
I used (BP5758D_Current 50) command for the sonoff to adjust the brightness
But for the SM2135 controller I used the command (SM2135_Current 6 2)
But still the RGB collors need to be calibrated and I havn't done that.
Unfortunately, this bulb seems to be a no name brand but it does use the Surplife APP. Sorry I don't have further information about it.
I was hoping to get BK7231T or BK7231N just so I can try Tuya Cloudcutter but this bulb came with a BL602 module BL-M5 V1.2
The bulb also uses a SM2135 LED Controller
Since this is a BL602 chip I had to remove the module from the board to get to the flashing pins on the back of the module
I used a soldering iron to remove it but I think it would be easier with a hot air station.
To flash the chip, I used USB to TTL adapter
TX -- RX
RX -- TX
Ground -- Ground
3.3 V -- 3.3V
Boot -- 3.3 only during flashing (I see other post saying a 10k resistor should be used but I couldn’t get the flashing complete unless I connected boot to 3.3v directly)
Here is more detailed post
https://www.elektroda.com/rtvforum/topic3889041.html
After flashing this is the pins for this bulb
This is the second bulb I have with BL602 (first on is a sonoff B05-BL-A19), with both bulb the brightness is low after flashing OpenBeken.
I used (BP5758D_Current 50) command for the sonoff to adjust the brightness
But for the SM2135 controller I used the command (SM2135_Current 6 2)
But still the RGB collors need to be calibrated and I havn't done that.
Comments
Thank you for your interesting review. It's nice to see that OpenBL602 can be really useful for some people. I'm happy that it works even with LED drivers. Btw, we'll be adding SM2235 soon as well (it's... [Read more]
@pkaczmarek2 I appreciate all the hard work you’ve done for OpenBeken software and your support in the community. Regarding the RGB Colors, I changed the map to "SM2135_Map 0 1 2 4 3" and did... [Read more]
I have the same lamp, bought in pack of 4 and the set arrived with a remote control that seems to be using RF to send data as I can't find any IR receiver on the board. the LED controller (?) on mine is... [Read more]
We have IR but the interrupt is not ported yet for BL602, I would need to look into that. The BP5758 configuration is similar like here: [Read more]
As I said it's not an IR remote, seems to be RF remote with just a red LED and even if I cover the LED, the remote function without any issues, I'll try to dump the firmware but first I have to figure... [Read more]
I have that exact same bulb, bought the 4 pack, i tried flashing two of them. Flashing was successfull however it got into a bootloop, and no wifi access point. Followed the video, followed your recomendation... [Read more]
Are you using your FTDI adapter to power the chip? if you are using it, the adapter mostly doesn't have enough juice to power it. If that's the case and your flash was successful, try reinstalling the... [Read more]
@Zain00 you have very good point, if he powered it from some kind of UART to USB adapter, then it may indeed bootloop [Read more]
@zain00 @pkaczmarek2 You were absolutely right, I re-soldered the chip back into its original bulb and there it was the AccessPoint. Thanx for the help! I hope this helps guys. DON'T use FTDI / USB to... [Read more]
By the way, it's important to note that SM2135_Current arguments are not raw values, they are entries from the following table: #define SM2135_10MA 0x00 #define SM2135_15MA 0x01 #define... [Read more]
Hi! I just got my first BL602 smart bulb today, not from Sonoff but from "CozyLife" (via the aliexpress 3 for 6 dollar deal). After getting the diffuser off to identify the chip, I'm a bit hesitant to... [Read more]
It is totally impossible to flash it with cloudcutter. It's most likely even non-Tuya SDK. You have to do this: https://www.youtube.com/watch?v=L6d42IMGhHw You can also see our second bulb video: h... [Read more]
@jrhenk do you have a link for that? i assumed they'd still be using esp for their homekit firmware because I have cozylife downlight with esp8285 As for the bulb teardown, you can use something like... [Read more]
Thanks for this info - I guess that explains why I wasn't able to connect it with the tuya app for 10 minutes, after that I gave up. Also thanks for the links to the disassembling and flashing guide. Seems... [Read more]
On closer inspection of the product page and the packaging I noticed that there is indeed no "works with tuya" logo anywhere. This is a first for me and seems I was just lucky until now, but this surely... [Read more]
BL602 is usually for ewelink from my previous purchase [Read more]
I know this is a old post but I am working on the same model bulb and can't even seem to get it to come on only the web panel so wanted to see if you had any suggestions [Read more]
Wait, so do you get web page or not? Did you get OpenBL602 access point? WiFi will not work well if powered directly through USB to TTL converter, you need better power supply. [Read more]
ok lets try that again i get the web panel I have it flashed and back on mains power but I am getting no leds and am confused on what I could be setting wrong Added after 4 [hours] 46 [minutes]:... [Read more]