[BL602] IoT relay series on BL602, SM-028_V1.3, KR0548-2CH-W, KR05-1CH

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Post #1

20360406 30 Dec 2022 23:13

I put here a description of the pins of smart relays with the WiFi / Bluetooth BL602 Bouffalo Lab module. The basic module is the TROLINK SM-028_V1.3 BL602L20, it is used in the QIACHIP KR05-1CHKG-W relay and in the QIACHIP KR0548-2CH-W relay. Most likely, they are used by the entire series, i.e. the KR05-1CH, KR0548-1CH, KR0548-2CH and KR0548-4CH models. Without changing the firmware, they work with the eWeLink application, uploading OpenBeken allows you to free them from the cloud. These relays here are available to buy without a housing, it is the so-called. "DIY" version, they are additionally powered from USB - 5V.

The materials collected here were sent to me by one of the US users on Github. I'm posting them here at his request. Thank you!

SM-028_V1.3 BL602L20
Here is the module itself - pins probably inspired by TYWE2S from ESP8266 (and also WB2S, CB2S and so on)

LABEL	GPIOs	PIN
L	GPIO_1	2
AND	GPIO_4	5
b	GPIO_20	29
g	GPIO_14	22
R	GPIO_3	4
22	GPIO_22	31
17	GPIO_17	28
c	GPIO_21	thirty
In	GPIO_2	3

The pins of the integrated circuit itself, QFN housing:

The UART port used for logging (and for programming) here are the P16 (TX) and P7 (RX) signals, they are on the back of the module, loose. There is also a BT signal that allows you to start programming mode, as in my topic:
https://www.elektroda.pl/rtvforum/topic3889041.html
The log baud on this platform is 2000000.
For comparison - TYWE2S:

QIACHIP KR05-1CHKG-W (SM-028_V1.3 BL602L20)
To buy on various Chinese portals, not always with the given model:

Connection:

Photo of what it looks like in reality, from the user:

Roles of individual pins (for use with OpenBeken):
Btn -> GPIO_14 (G)
Rel -> GPIO_20 (B)
WifiLED_n -> GPIO_22 (22)

QIACHIP KR0548-2CH-W (SM-028_V1.3 BL602L20)
There are even more results here, it's a bit easier to find this product under "KR0548-2CH-W". Even on the Qihip website:

Other portal:

Photo of what it looks like in reality, from the user:

Roles of individual pins (for use with OpenBeken):
Btn(1) -> GPIO_20 (B)
Rel(1) -> GPIO_21 (C)
Btn(2) -> GPIO_4 (A)
Rel(2) -> GPIO_17 (17)
WifiLED_n -> GPIO_14 (G)

KR0548-4CH module
Neither I nor the user had this module physically, but I will post its photos from sellers' offers anyway.

Other seller:

Module photos:

Leads - to be completed. The module is quite cheap, maybe someone will be tempted to experiment?

Summary
Thanks to OpenBeken on Github for sharing information about the modules and for specifying their pins. It will definitely come in handy - OpenBeken supports the BL602 platform, so these devices can be freed from the cloud, and not only them - at the moment the BK7231T, BK7231N, BL602, XR809, T34, W800/W801 and W600/W601 platforms are supported.
About OpenBeken for BL602:
https://www.elektroda.pl/rtvforum/topic3889041.html
Project repository:
https://github.com/openshwprojects/OpenBK7231T_App
Has anyone else encountered any devices on the BL602? Let me know, then we'll complete the topic.

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p.kaczmarek2 p.kaczmarek2

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#2 20361131 31 Dec 2022 14:04

rubik123 rubik123

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Post #2
20361131 31 Dec 2022 14:04

Can it be configured so that the relay turns on for 0.5s, e.g. to control the gate?
#3 20363205 02 Jan 2023 03:15

p.kaczmarek2 p.kaczmarek2

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Post #3
20363205 02 Jan 2023 03:15

If you're asking about the original app, I'm not sure, although there were simple automations available.
If you are asking about OpenBeken, yes, you can freely script it and the scripts are executed on the device itself, even without internet access.

But overall I advise against BL602. It's better to go for proven solutions, i.e. ESP, and if you want something else, Tuya products on BK7231T or BK7231N are more often than BL602 and they are also better supported by OpenBeken.

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

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#4 20363218 02 Jan 2023 06:19

rubik123 rubik123

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Post #4
20363218 02 Jan 2023 06:19

Approx. I will keep that in mind when purchasing. Thank you.
#5 20364093 02 Jan 2023 18:02

michaeljuniper michaeljuniper

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Post #5
20364093 02 Jan 2023 18:02

Hi, I have a smart switch.

As you can see it stated eWeLink compatible so I assumed (foolishly!) it had an ESP chip inside.

It does not, but has a BL602L20 chip mounted on a SM-028_V1.3 BL602L20 module.

I would like to replace the SM-028_V1.3 BL602L20 with an ESP based module (TYWE2S) that I can then flash with Tasmota.

Given your knowledge of these modules, is it just a case of desoldering the SM-028_V1.3 BL602L20 module and replace it with the ESP module?
Then flash with Tasmota.

I have two switches so I shall try OpenBK7231T/OpenBeken on the other one and compare.
Thanks in advance for you help.
#6 20364122 02 Jan 2023 18:26

p.kaczmarek2 p.kaczmarek2

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Post #6
20364122 02 Jan 2023 18:26

Hello @michaeljuniper , I didn't check the datasheet now, but I did a XR809 to ESP8266 transplant in the past in this topic:
https://www.elektroda.com/rtvforum/topic3816654.html
In a nutshel, for that transplant, I:
Quote:

Unfortunately, the AP did not appear. I had to check each pin with a multimeter. My suspicions has confirmed. I had to add a 10k pull up resistor for EN and GPIO0 and a pull down resistor for GPIO15. In addition, I had to remove the diode from GPIO15 (unfortunately they just gave it there and this diode forced a high state on this pin and started ESP booting from an SD card ...).

so you might have to add a one or two resistors in order for it to work. Consult datasheet of ESP8266 for required and forbidden pin states on startup. Pay attention to GPIO0 and EN and GPIO15. Also check your replacement module datasheet.

Tell us if you manage to get it working, some photos of ready setup are also welcome. Good luck!

You can also just try BL602 OBK port. For simple switch, it should be fully functional.

EDIT:
After a quick look at pinout, I think that a RST pin of ESP may be a problem? Is that particular pad used for something in your device?

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

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#7 20364146 02 Jan 2023 18:40

michaeljuniper michaeljuniper

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Post #7
20364146 02 Jan 2023 18:40

Thank you for quick reply I will check out the pins which are used (rst pin) and I will update on my progress.
#8 20380238 11 Jan 2023 19:35

mikkojordman mikkojordman

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Post #8
20380238 11 Jan 2023 19:35

Hi, I have flashed many ESPs but this is my first BL602. I dont get what pad does this mean?
"BOOT from the module to the 10k resistor to the power supply"
So, what pad/pin on BL602 / SM-028 is this "BOOT"?
#9 20380423 11 Jan 2023 20:52

p.kaczmarek2 p.kaczmarek2

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Post #9
20380423 11 Jan 2023 20:52

Hello @mikkojordman . According to my knowledge, the BOOT pin on BL602 is D8.

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

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#10 20493237 16 Mar 2023 23:24

ipadbendavid ipadbendavid

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Post #10
20493237 16 Mar 2023 23:24

Hello Amazing work

I would like to pair the Remote Control . What is the process ?
Thank you
#11 20493250 16 Mar 2023 23:35

p.kaczmarek2 p.kaczmarek2

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Post #11
20493250 16 Mar 2023 23:35

Hello, what kind of remote control, and which device?

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

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#12 20493470 17 Mar 2023 17:04

ipadbendavid ipadbendavid

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Post #12
20493470 17 Mar 2023 17:04

Hi
I have successfully installed the OpenBeken. Its is working very well to control the 2 relays and 2 the buttons. But i don't how to add a Receiver for the Remote control / and to pair it.
Here the remote type. on the image below. on Weelink App , you can add a remote to control the Switch. It has 6 buttons (1, 2, 3, 4 all on and All off).

Added after 8 [hours] 45 [minutes]:

[17:00:19.067] - Starting bl602 now....
############################## system init ##################################
Device Info:[Firmware Name:<FWSW-HSBL602-SWITCH-BL602L_v1.3.0>,Build Time:<20220412.141107.766>,Boot Reason:<BL_RST_POWER_OFF>]
[17:00:19.175] - 鴟|>| 8>`虁鴟|| 8`虁鴟
[17:00:19.283] - || 8 8`虁
[17:00:19.392] - > 8 | 8 鄚鎩
[17:00:19.503] - > | 8 鄚鎩 8 | > >鄚苵 8
[17:00:19.610] - cfg->led_status = 1
Reading the dts file...
And the GPIO config is :
cfg->wifi_led = 14
cfg->all_on_off = 200
cfg->relay0 = 21
cfg->relay1 = 17
cfg->relay2 = 22
cfg->relay3 = 2
cfg->key0 = 20
cfg->key1 = 4
cfg->key2 = 1
cfg->key3 = 3
cfg->led_status = 1
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#13 20905068 12 Jan 2024 11:45

Jekob Jekob

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Post #13
20905068 12 Jan 2024 11:45

>>20360406
@p.kaczmarek2
Good morning,
I tried to use the ready-made OpenBL602_1.17.402.bin file from the repository and upload to the SM-028_V1.3 module soldered from some Chinese Mini switch. While the upload works, the module does not start properly, it resets all the time. Where to look for the cause? Tz is it possible to upload this ready-made bin or do you need to prepare your own.

I attach the log from the serial port, the processor throws the same thing several times per second.

Attachments:

20240112_test_bl602.txt Download (10.15 KB)
#14 20905126 12 Jan 2024 12:27

p.kaczmarek2 p.kaczmarek2

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Post #14
20905126 12 Jan 2024 12:27

@Jekob at first glance I'm not sure what could be going wrong. The log looks like it's booting up old soft, but I could be wrong, I haven't physically interacted with a lot of devices on the BL602. In general, the very beginning of the log is quite interesting:
Code: text Expand Select all Copy to clipboard
RISC-V Core Feature:RV32-ACFIMX Build Version: release_bl_iot_sdk_1.6.22-22-g1d4ff804-dirty Std Driver Version: 541807d PHY Version: a0_final-73-g62481a0 RF Version: 79cc6b9 Build Date: Jan 11 2024 Build Time: 15:54:32 Boot Reason: BL_RST_POWER_OFF

Boot reason to power off - could it be a power problem?
Although I'm looking at it now, build date is January 11, 2024, so maybe something was uploaded....

There was already a similar situation on the forum, and it turned out that someone was powering the module from some weak power supply or directly from the 3.3V pin from the USB to UART converter, causing the module to reset after a while.

Can you show how you power the module, some pictures?

A fairly efficient 3.3V source can be found on board the NodeMCU or Arduino UNO, for example.

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

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#15 20905200 12 Jan 2024 13:00

Jekob Jekob

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Post #15
20905200 12 Jan 2024 13:00

@p.kaczmarek2 Wise is and nice to listen to
I hooked up the Korad KD3005D, which indicates current draw varying between 55 and 65mA and the module seems to work, i.e. AP appeared
Thank you very much.
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#16 20905218 12 Jan 2024 13:08

p.kaczmarek2 p.kaczmarek2

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Post #16
20905218 12 Jan 2024 13:08

So that's it after all... in that case, I guess I'll add this problem to the FAQ, since it's not the first time I've seen it on the forum. I'll update https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/faq.md right away

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

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#17 20909587 14 Jan 2024 19:33

stancecoke stancecoke

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Post #17
20909587 14 Jan 2024 19:33

Thank you for this great project. I use it for my E27 bulb socket relay
https://www.ebay.de/itm/314264464569
It has the same pinout as the QIACHIP KR05-1CHKG-W relay.
Btn -> GPIO_14 (G)
Rel -> GPIO_20 (B)
WifiLED_n -> GPIO_22 (22)

I use simple web query commands like "http://192.168.xxx.yyy/cm?cmnd=Power%20Off" so far, but I could'nt figure out, how to set a sleep timer. Is there a command to switch on the bulb for 20 minutes, then switch off automatically?

regards
stancecoke
#18 20909666 14 Jan 2024 20:00

p.kaczmarek2 p.kaczmarek2

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Post #18
20909666 14 Jan 2024 20:00

Can you post here full OBK template?

To switch of relay with a delay, you can use a repeating event with repeats count equal to one.

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

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#19 20909803 14 Jan 2024 21:06

stancecoke stancecoke

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Post #19
20909803 14 Jan 2024 21:06

this is my recent OBK template, but I've not filled any specific in there. It uses the SM-028 board.

Code: JSON
Log in, to see the code

The device is sold at many places like ebay, amazon, aliexpress
https://www.aliexpress.us/item/3256805856701661.html

Can you post an example how to make a delay, using web query commands?

regards
stancecoke
#20 20909962 14 Jan 2024 22:28

p.kaczmarek2 p.kaczmarek2

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Post #20
20909962 14 Jan 2024 22:28

The examples are already shown on the autoexecs samples page, but they are for platforms with LittleFS, so you need to modify them a bit:
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/autoexecExamples.md
But long story short:
Code: text Expand Select all Copy to clipboard
// command will turn off relay on CH1 after 10 seconds // addRepeatingEvent [IntervalSeconds][RepeatsOr-1][CommandToRun] addRepeatingEvent 10 1 setChannel 1 0

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

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#21 20910270 15 Jan 2024 09:32

stancecoke stancecoke

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Post #21
20910270 15 Jan 2024 09:32

Thank you, but I can't manage to create the autoexec.bat file on the device. Both methods, drag an existing file and using the button "create file" fail.
I watched this tutorial: https://www.youtube.com/watch?v=kXi8S12tmC8
With pressing "List Filesystem" nothing happens.

regards
stancecoke
#22 20910293 15 Jan 2024 09:55

p.kaczmarek2 p.kaczmarek2

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Post #22
20910293 15 Jan 2024 09:55

LittleFS is not available on Bl602 yet. For BL602, you need to either stuff your commands in the short startup command or send them via HTTP at runtime.

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

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#23 20910410 15 Jan 2024 11:09

stancecoke stancecoke

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Post #23
20910410 15 Jan 2024 11:09

OK, I understand. Which set of commands is available for the BL602 via http? Sorry for this newbie questions, I'm normally dealing with C on STM32 mikroprocessors.

regards
stancecoke
#24 20910460 15 Jan 2024 11:43

p.kaczmarek2 p.kaczmarek2

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Post #24
20910460 15 Jan 2024 11:43

Most of the commands from our docs should be available on BL602 already. Only some of the drivers are missing from BL602.
https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/commands.md

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

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#25 20910504 15 Jan 2024 12:09

stancecoke stancecoke

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Post #25
20910504 15 Jan 2024 12:09

OK, I'll try. The mechanical button for manually switch the relay is not reachable, if the E27 relay device is installed. What is the easiest way to switch via a smart button? I don't want to use the mobile phone.
There are several door bell buttons or emergency buttons available, can they send the web query directly, or do you have to use a server like a raspberry
#26 20910538 15 Jan 2024 12:27

p.kaczmarek2 p.kaczmarek2

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Post #26
20910538 15 Jan 2024 12:27

You can either use HTTP GET commands, syntax is like in the Tasmota, or Tasmota Device Groups:

If you don't want to use Tasmota Device Groups, look into the SendGet command.
Code: text Expand Select all Copy to clipboard
// when channel 1 becomes 0, send OFF addChangeHandler Channel1 == 0 SendGet http://192.168.0.112/cm?cmnd=Power0%20OFF // when channel 1 becomes 1, send ON addChangeHandler Channel1 == 1 SendGet http://192.168.0.112/cm?cmnd=Power0%20ON

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

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#27 20910617 15 Jan 2024 13:11

stancecoke stancecoke

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Post #27
20910617 15 Jan 2024 13:11

Is there a battery driven button that uses WiFi? Or are there only 433MHz or BLE Buttons?
Can Open Beken receive 433MHz signals?

Update:
with this python command, the lamp switches on for 20 minutes (1200 s), thank you for your help!

Code: text Expand Select all Copy to clipboard
r = requests.get('http://192.168.xxx.yyy/cm?cmnd=backlog%20Power%20on;%20addRepeatingEvent%201200%201%20setChannel%200%200',headers={'Accept': 'application/json'})

regards
stancecoke

#28 20987133 02 Mar 2024 16:44

divadiow divadiow

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Post #28

20987133 02 Mar 2024 16:44

I just got round to trying the KR0548-1CH-W I bought a while ago.

Boot log from BL602.

[10:11:46.743] - Starting bl602 now....
############################## system init ##################################
Device Info:[Firmware Name:<FWSW-HSBL602-SWITCH-BL602L_v1.3.3>,Build Time:<2022061
[10:11:46.745] - 4.144049.148>,Boot Reason:<BL_RST_POWER_OFF>]
[10:11:47.338] - cfg->led_status = 0
Reading the dts file...
And the GPIO config is :
cfg->wifi_led = 22
cfg->all_on_off = 200
cfg->relay0 = 20
c
[10:11:47.340] - fg->relay1 = 200
cfg->relay2 = 200
cfg->relay3 = 200
cfg->key0 = 14
cfg->key1 = 200
cfg->key2 = 200
cfg->key3 = 200
cfg.led_status = 0
cfg->led_status = 0
Reading the dts file...
And the GPIO config is :
cfg->wifi_led = 22
cfg->all_on_off = 200
cfg->relay0 = 20
cfg->relay1 = 200
cfg->relay2 = 200
cfg->relay3 = 200
cfg->key0 = 14
cfg->key1 = 200
cfg->key2 = 200
cfg->key3 = 200
cfg.led_status = 0

flashID info from Bouffalo Lab Dev Cube 1.8.9

[10:06:47.077] - Version: eflash_loader_v2.5.0
[10:06:47.078] - Program Start
[10:06:47.078] - ========= eflash loader cmd arguments =========
[10:06:47.078] - Config file: C:\Users\xxx\BouffaloLabDevCube-v1.8.9\chips\bl602\eflash_loader\eflash_loader_cfg.ini
[10:06:47.082] - serial port is COM9
[10:06:47.083] - cpu_reset=False
[10:06:47.084] - chiptype: bl602
[10:06:47.085] - ========= Interface is uart =========
[10:06:47.085] - com speed: 2000000
[10:06:47.086] - Eflash load helper file: C:\Users\xxx\BouffaloLabDevCube-v1.8.9\chips\bl602\eflash_loader/eflash_loader_40m.bin
[10:06:47.086] - ========= load eflash_loader.bin =========
[10:06:47.086] - Load eflash_loader.bin via uart
[10:06:47.086] - ========= image load =========
[10:06:47.334] - Not ack OK
[10:06:47.335] - FL
[10:06:47.335] - result: FL
[10:06:47.615] - tx rx and power off, press the machine!
[10:06:47.616] - cutoff time is 0.1
[10:06:47.724] - power on tx and rx
[10:06:48.542] - reset cnt: 0, reset hold: 0.005, shake hand delay: 0.1
[10:06:48.543] - clean buf
[10:06:48.546] - send sync
[10:06:48.758] - ack is 4f4b
[10:06:48.805] - shake hand success
[10:06:48.821] - get_boot_info
[10:06:48.832] - data read is b'0100000000000000030000006382be4cb97c1700'
[10:06:48.832] - ========= chipid: 7cb94cbe8263 =========
[10:06:48.832] - last boot info: None
[10:06:48.833] - sign is 0 encrypt is 0
[10:06:48.835] - segcnt is 1
[10:06:48.863] - segdata_len is 38592
[10:06:48.959] - 4080/38592
[10:06:49.054] - 8160/38592
[10:06:49.151] - 12240/38592
[10:06:49.247] - 16320/38592
[10:06:49.343] - 20400/38592
[10:06:49.439] - 24480/38592
[10:06:49.534] - 28560/38592
[10:06:49.630] - 32640/38592
[10:06:49.726] - 36720/38592
[10:06:49.774] - 38592/38592
[10:06:49.791] - Run img
[10:06:49.907] - Load helper bin time cost(ms): 2821.169921875
[10:06:50.016] - Flash load shake hand
[10:06:50.029] - default set DTR high
[10:06:50.141] - clean buf
[10:06:50.144] - send sync
[10:06:50.373] - ack is 4f4b
[10:06:50.420] - Read mac addr
[10:06:50.431] - macaddr: 6382be4cb97c
[10:06:50.432] - flash set para
[10:06:50.432] - ========= flash read jedec ID =========
[10:06:50.446] - Read flash jedec ID
[10:06:50.447] - flash jedec id: ef401580
[10:06:50.447] - Finished
[10:06:50.455] - get flash size: 0x00200000
[10:06:50.456] - ========= flash read jedec ID =========
[10:06:50.463] - Read flash jedec ID
[10:06:50.464] - flash jedec id: ef401580
[10:06:50.464] - Finished

and finally quite a successful flash using solely the latest Dev Cube, latest partition and boot2 files (!). I dispensed with the breadboard and connected power/ground using wagos. I also bumped the PSU up to 3.5v.

flash was successful using a Prolific 2303 and 100000 baud in BLDC. I also made sure the device was pairing (with EweLink app) (as a desoldered module powered externally) and not boot looping BEFORE I flashed OBK. Then after flashing OBK the AP appeared without issue.

whole 2mb flash was dumped, attached

to complete the template @stancecoke posted https://www.elektroda.com/rtvforum/topic3945435.html#20909803
I went with wifi (not _n) so the behaviour is that the blue LED is flashing on wifi connecting then off when connected. The red LED (not controllable) comes on with the relay in one of the positions anyway.

various pics

Attachments:

flash.bin Download (2 MB)

#29 20987138 02 Mar 2024 16:47

divadiow divadiow

Level 34

Helpful post? (+2)

Post #29
20987138 02 Mar 2024 16:47

and PR https://github.com/OpenBekenIOT/webapp/pull/82
#30 20993476 06 Mar 2024 22:01

divadiow divadiow

Level 34
Helpful post? (0)

Post #30
20993476 06 Mar 2024 22:01

I'm on a roll with the BL602s now. Today I did the 2-channel version of the above, same as the OP - KR0548-2CH-W.

Same process as my previous post but this time the SM-028_v1.3 was happy at 3.4v. no boot loops at any point. dump of factory flash and flash to OBK at first attempt.

Here is original boot log

Code: Text
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Here is flash ID get using BLDC 1.8.9

Code: Text
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here is visual flash of OBK success then the text output of flash log

Code: Text
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and finally the log out of OBK itself after flash

Code: Text
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pin config used from existing device list entry

Code: Text
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This was flashed at 2000000 baud and with an FTDI USB TTL

Attachments:

flash.bin Download (2 MB)
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Topic summary

The discussion revolves around the BL602-based IoT relay series, specifically the TROLINK SM-028_V1.3 module used in QIACHIP relay models KR05-1CH, KR0548-1CH, KR0548-2CH, and KR0548-4CH. Users inquire about configuring the relays for specific tasks, such as controlling a gate, and the compatibility of the BL602 with various applications like eWeLink and OpenBeken. Concerns are raised regarding the reliability of the BL602 compared to ESP-based solutions, with suggestions to consider Tuya products on BK7231T or BK7231N for better support. Users share experiences with flashing firmware, troubleshooting boot issues, and integrating remote controls. The conversation also touches on GPIO configurations and the use of HTTP commands for relay control.
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[BL602] IoT relay series on BL602, SM-028_V1.3, KR0548-2CH-W, KR05-1CH