Roller shutter Etersky WF-CS01 : CB3S and WB3S pin mapping and scripts

benjaminklamerek 3174 47

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#31 21769822 03 Dec 2025 09:58

p.kaczmarek2 p.kaczmarek2

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Post #31
21769822 03 Dec 2025 09:58

added vars:
- $mqtt_client
- $shortName
- $name
They work for publish and publishFile. Self tests:
Code: C / C++
Log in, to see the code

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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#32 21770619 03 Dec 2025 22:40

Acefx Acefx

Level 9

Post #32

21770619 03 Dec 2025 22:40

All done & Working

For anybody willing to use it here's the FS tar;
Just restore it from the web application menu
/!\ You need firmware version 1.18.223 or above /!\

Total integration with home assistant,
Diagnostic information
Build
IP
RSSI
SSID
Chip Temp
Uptime.

Shutter travel time in sec( need to time it manually and wrote it down )
Backlight of the touchpad
and of course, cover entity with feedback.

Also the 2 files already in the Filesystem
Autoexec.bat

// Autoexec file for Etersky WS01, CB3S , with new ha integration and autodiscovery
//Made by Acefx and Google Gemini  - Thx to  divadiow, benjaminklamerek for the initial source
// and of course p.kaczmarek2 for his wonderfull work, availability, and patience ( with me ) 



// Set up Aliases
alias Set_Stop backlog setChannel 3 0; setChannel 1 0; setChannel 2 0; setButtonColor 3 CornflowerBlue; setButtonColor 2 CornflowerBlue; setButtonColor 1 CornflowerBlue
alias UPmouv_Stop backlog  setChannel 1 0
alias DWmouv_Stop backlog setChannel 3 0
alias Set_Open backlog setChannel 1 1; setButtonColor 1 Coral 
alias Set_Close backlog setChannel 3 1; setButtonColor 3 Coral
alias Set_Finish backlog setChannel 2 1; setButtonColor 2 Coral
alias Start_Opening backlog stopAllScripts; startScript autoexec.bat openSkylight
alias Start_Closing backlog stopAllScripts; startScript autoexec.bat closeSkylight
alias Stop_All backlog stopAllScripts; startScript autoexec.bat stopSkylight
alias Stop_led_up backlog setButtonColor 1 Coral
alias Stop_led_finish backlog setButtonColor 2 Coral
alias Stop_led_dw backlog setButtonColor 3 Coral


// create GUI buttons for HTTP panel
startDriver httpButtons

// Define displayed text on button 4/5
setChannelLabel 4 "Shutter travel time (sec)"
setChannelLabel 5 "Backlight"

setButtonEnabled 1 1
setButtonLabel 1 "Open"
setButtonCommand 1 Start_Opening
setButtonColor 1 CornflowerBlue

setButtonEnabled 3 1
setButtonLabel 3 "Close"
setButtonCommand 3 Start_Closing
setButtonColor 3 CornflowerBlue
setButtonEnabled 2 1
setButtonLabel 2 "Stop"
setButtonCommand 2 Stop_All
setButtonColor 2 CornflowerBlue

// Hide the default GUI buttons
setChannelVisible 1 0
setChannelVisible 2 0
setChannelVisible 3 0

SetChannelPrivate 1 1
SetChannelPrivate 2 1
SetChannelPrivate 3 1

// Loading Event Handlers
addEventHandler OnClick 7 Start_Closing
addEventHandler OnClick 24 Start_Opening
addEventHandler OnClick 10 Stop_All

// --- HomeAssistant discovery  ---

addEventHandler OnDiscovery 0 publishFile homeassistant/cover/$mqtt_client_cover/config d.json 1
scheduleHADiscovery



// ----------Script part for interlock--------------------------------


// Stop Operation on power up
goto stopSkylight


// do not proceed
return

openSkylight:
DWmouv_Stop
delay_ms 100
Set_Open
publish shutterState opening
setChannel 2 0
setButtonColor 2 CornflowerBlue
delay_s $CH4
Set_Stop
Set_Finish
publish shutterState open
delay_s 2
Set_Stop
return

closeSkylight:
UPmouv_Stop
delay_ms 100
Set_Close
publish shutterState closing
setChannel 2 0
setButtonColor 2 CornflowerBlue
delay_s $CH4
Set_Stop
Set_Finish
publish shutterState closed
delay_s 2
Set_Stop
return

stopSkylight:
Set_Stop
Set_Finish
publish shutterState open
delay_s 6
Set_Stop
return

And the d.json ( discovery payload )

{
  "dev": {
    "ids": [
      "$mqtt_client"
    ],
    "name": "$mqtt_client"
  },
  "name": "$name",
  "~": "$mqtt_client",
  "avty_t": "~/connected",
  "uniq_id": "$mqtt_client_cover",
  "qos": 1,
  "unique_id": "$mqtt_client_id",
  "device_class": "shutter",
  "state_topic": "~/shutterState/get",
  "command_topic": "cmnd/$mqtt_client/backlog",
  "payload_open": "Start_Opening",
  "payload_close": "Start_Closing",
  "payload_stop": "Stop_All",
  "state_open": "open",
  "state_closed": "closed"
}

thx again to p.kaczmarek2 for his wonderfull work, availability, and patience ( with me )

Attachments:

LittleFS_WS01-Etersky_12-3-2025_10-31-48 PM.tar (10 KB) You must be logged in to download this attachment.

#33 21770648 03 Dec 2025 23:22

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #33
21770648 03 Dec 2025 23:22

Thank you, so it's working now? How it looks in HA?

Would you like to improve it a bit more?

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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#34 21770855 04 Dec 2025 17:56

Acefx Acefx

Level 9

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Post #34
21770855 04 Dec 2025 17:56

Totally working and integrated. Thanks to you!
Do you think it's possible to improve it more?

I think one major improvement could be to add a temperature probe on the I/O to get feedback for the domotics

Added after 8 [hours] 19 [minutes]:

Ok i have deeply tested the firmware & adaptation, i have 2 flaws
1. the backlight seems to have a wrongpin adress , ( easy to fix )
2. when you order the "stop" command, the device send "publish Shutterstate open"
Which is problematic because home assistant feels that the shutter is open, and disable the up button.

It could be better if we could publish a " stopped state" nor a shutter position 50% , but i'm not sure it exist...
Of course, a position prediction feature could be gold, but i think a C driver is needed for that...
#35 21787148 22 Dec 2025 01:04

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #35
21787148 22 Dec 2025 01:04

Are you still interested in C driver for shutters? I need testers.

Added after 25 [minutes]:

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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#36 21804782 10 Jan 2026 16:28

dgel27 dgel27

Level 8

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Post #36
21804782 10 Jan 2026 16:28

I think it will be better. There are many shutter modules on the market; also it will possibly apply any few-channel module as a shutter.
I can test it. It is better to add calibration to movement. Need different times for up and down. Usually in the upward direction it takes more time.
Thanks!
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#37 21856504 07 Mar 2026 14:18

JYO JYO

Level 4

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Post #37
21856504 07 Mar 2026 14:18

>>21787148
Hi,
I have an SC420W-EU Loratap dual-shutter switch,

I have made a teardown of this switch and I have found the pinout and use of the GPIOs.

Flashing was a breeze, needing only two solders.
I am very interested in testing a (C) shutter driver...

Let me know when you have made one!

P.S.: Thanks for this great work
#38 21856706 07 Mar 2026 18:45

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #38
21856706 07 Mar 2026 18:45

It's ready and working.
https://github.com/openshwprojects/OpenBK7231T_App/pull/2013

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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#39 21858085 09 Mar 2026 14:06

JYO JYO

Level 4

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Post #39
21858085 09 Mar 2026 14:06

>>21856706
Thanks for the info.
I finally succeeded in getting OpenBK7231N_2013_merge_b69856ffe78e.rbl and flashed it to my SC420W-EU, but there is no shutter driver in it, nor PinMutex driver...
And obkSimulator_2013_merge_b69856ffe78e has PinMutex, but no shutter...
So I can't test...
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#40 21858105 09 Mar 2026 14:26

DeDaMrAz DeDaMrAz

Level 22

Post #40

21858105 09 Mar 2026 14:26

@JYO

Can you confirm you are running on that PR FW build, I just tested it on my end

Info:MAIN:Available drivers: 
Info:MAIN:TuyaMCU
Info:MAIN:, tmSensor
Info:MAIN:, PixelAnim
Info:MAIN:, NTP
Info:MAIN:, HTTPButtons
Info:MAIN:, I2C
Info:MAIN:, BL0942
Info:MAIN:, BL0942SPI
Info:MAIN:, BL0937
Info:MAIN:, CSE7766
Info:MAIN:, SM16703P
Info:MAIN:, SM15155E
Info:MAIN:, IR
Info:MAIN:, RC
Info:MAIN:, Shutters
Info:MAIN:, DDP
Info:MAIN:, SSDP
Info:MAIN:, DGR
Info:MAIN:, Wemo
Info:MAIN:, Hue
Info:MAIN:, PWMToggler
Info:MAIN:, DoorSensor
Info:MAIN:, SM2135
Info:MAIN:, BP5758D
Info:MAIN:, BP1658CJ
Info:MAIN:, SM2235
Info:MAIN:, CHT83XX
Info:MAIN:, KP18058
Info:MAIN:, ADCSmoother
Info:MAIN:, AHT2X
Info:MAIN:, DS1820
Info:MAIN:, Battery
Info:MAIN:, Bridge
Error:CMD:LFS_ReadFile: lfs is absent

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#41 21858145 09 Mar 2026 15:24

JYO JYO

Level 4

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Post #41
21858145 09 Mar 2026 15:24

>>21858105
No, there is no 'Shutters' driver in the FW I downloaded...
Can you send it to me, or any links?
#42 21858151 09 Mar 2026 15:27

dgel27 dgel27

Level 8

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Post #42
21858151 09 Mar 2026 15:27

>>21858105 Could you provide a link to this firmware?
Thanks!
#43 21858160 09 Mar 2026 15:39

DeDaMrAz DeDaMrAz

Level 22

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Post #43
21858160 09 Mar 2026 15:39

https://github.com/openshwprojects/OpenBK7231...actions/runs/22540704798/artifacts/5709120231

Provided link is for N platform only!!

Extract the RBL file only if you already have OBK installed and after OTA make sure that your device shows this on the bottom of OBK index page - version 2013_merge_b69856ffe78e

If it does not show that after OTA, reboot manually and repeat OTA.

Share more detail if it fails.

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#44 21858189 09 Mar 2026 16:14

JYO JYO

Level 4

Post #44

21858189 09 Mar 2026 16:14

>>21858160
Thanks a lot! Shutters driver is in the box!
It works like a breeze !
autoexec.bat :

// autoexec.bat Shutter driver test
// adapted to SC420W-EU (Loratap dual shutter) (c)JYO2026
startDriver Shutters
ClearIO // clear old GPIO/channels
StartupCommand ""  // clear STARTUP
// Shutter 1 (left buttons)
backlog setPinRole 7 ShutterA; setPinChannel 7 1
backlog setPinRole 24 ShutterB; setPinChannel 24 1
backlog setPinRole 9 BtnShutterUp; setPinChannel 9 1
backlog setPinRole 20 Btn; setPinChannel 20 1   // btn stop 1
backlog setPinRole 14 BtnShutterDown; setPinChannel 14 1
// Shutter 2 (right buttons)
backlog setPinRole 8 ShutterA; setPinChannel 8 2
backlog setPinRole 26 ShutterB; setPinChannel 26 2
backlog setPinRole 11 BtnShutterUp; setPinChannel 11 2
backlog setPinRole 23 Btn; setPinChannel 23 2   // btn stop 2
backlog setPinRole 10 BtnShutterDown; setPinChannel 10 2
backlog setPinRole 6 WifiLED_n

Buttons, setup & sliders :

In HA the 2 shutter commands appears as separate entities :

Both forms of the command:

#45 21858246 09 Mar 2026 17:31

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #45
21858246 09 Mar 2026 17:31

So it's okay? Or what do you mean by "2 shutter command entities"? Should there be a single one, or is it ok?

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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#46 21858354 09 Mar 2026 19:49

JYO JYO

Level 4

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Post #46
21858354 09 Mar 2026 19:49

>>21858246
I think it's Ok.
I was just surprised at first, as the dual switch is one piece of material, but shutters are individual so we may consider the SC420W-EU as two independant switches.
I saw that values in the calibration screen returns to the default value (10s) when mainss is switched off.
Where can I set the values permanently?
#47 21858404 09 Mar 2026 20:31

p.kaczmarek2 p.kaczmarek2

Moderator Smart Home

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Post #47
21858404 09 Mar 2026 20:31

It was not implemented, I implemented it in PR. Can you update and recheck?

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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#48 21860151 11 Mar 2026 18:47

JYO JYO

Level 4

Post #48

21860151 11 Mar 2026 18:47

>>21858404
Tested OK !
New autoexec.bat:

// autoexec.bat Shutter driver test (PR#2022)
// adapted to SC420W-EU (Loratap dual shutter) (c)JYO2026
startDriver Shutters
ClearIO // clear old GPIO/channels
StartupCommand ""  // clear STARTUP
// Shutter 1
backlog setPinRole 7 ShutterA; setPinChannel 7 1
backlog setPinRole 24 ShutterB; setPinChannel 24 1
backlog setPinRole 9 BtnShutterUp; setPinChannel 9 1
backlog setPinRole 20 Btn; setPinChannel 20 1   // btn stop 1
backlog setPinRole 14 BtnShutterDown; setPinChannel 14 1
backlog ShutterChannels 1 10 11 12 - stores shutter 1's state in channels 10-12
// Shutter 2
backlog setPinRole 8 ShutterA; setPinChannel 8 2
backlog setPinRole 26 ShutterB; setPinChannel 26 2
backlog setPinRole 11 BtnShutterUp; setPinChannel 11 2
backlog setPinRole 23 Btn; setPinChannel 23 2   // btn stop 2
backlog setPinRole 10 BtnShutterDown; setPinChannel 10 2
backlog ShutterChannels 2 20 21 22 - stores shutter 2's state in channels 20-22
backlog setPinRole 6 WifiLED_n

One remark: MQTT traffic has been reduced, sending less shutter positions, but is still sending one msg/second 'secondsWithNoPing' ; is there a way to reduce/program this behaviour ?
And there is a flaw in security (pehaps only in th PR): SSID & password appears as plain text in device log

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Topic summary

The discussion revolves around the Etersky WF-CS01 roller shutter device, focusing on the pin mapping and scripting for different versions, specifically CB3S and WB3S. The user shares their experience adapting the device using scripts based on information from various sources, including GitHub documentation. They highlight the variability in pin mapping across different versions of the device, which complicates setup. Responses include acknowledgments of the user's script contributions and suggestions for improving the autoexec.bat script for the WB3S model, emphasizing the need for clear documentation and setup guidance for users.
Summary generated by the language model.

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Roller shutter Etersky WF-CS01 : CB3S and WB3S pin mapping and scripts

FAQ

TL;DR: Etersky WF‑CS01 uses multiple Wi‑Fi boards; “the constructor used many different cards.” Pressing Stop 10 times triggers Safe Mode 3. Use the provided OpenBeken scripts, correct pin maps, and HA discovery to get a safe Cover entity. [Elektroda, benjaminklamerek, post #21006126]

Why it matters: Mixing pin maps or exposing raw relays in Home Assistant can short a shutter motor and destroy it.

CB3S vs WB3S pinouts differ: UP relay is P6 on both, but DOWN is P9 (CB3S) vs P7 (WB3S); LEDs and buttons differ too. [Elektroda, benjaminklamerek, post #21006126]
Default run-time (Channel 4): CB3S script sets 17 s; WB3S sets 40 s; adjust to your shutter. [Elektroda, benjaminklamerek, post #21006126]
Safe Mode: press the Stop button 10× in a row to enter AP SafeMode 3. [Elektroda, benjaminklamerek, post #21006126]
HA MQTT discovery: publish d.json via publishFile; later firmware adds $mqtt_client/$shortName/$name variables. [Elektroda, p.kaczmarek2, post #21769822]
Hide raw relays from HA with SetChannelPrivate 1 before rediscovery. [Elektroda, p.kaczmarek2, post #21768119]

Quick Facts

CB3S: P6=UP, P9=DOWN; WB3S: P6=UP, P7=DOWN; other pins for LEDs/buttons vary—use matching script. [Elektroda, benjaminklamerek, post #21006126]
Channel 4 controls travel time; examples: 17 s (CB3S) and 40 s (WB3S). [Elektroda, benjaminklamerek, post #21006126]
Safety interlock scripted: never energize both relays; Stop 10× enters SafeMode 3. [Elektroda, benjaminklamerek, post #21006126]
HA discovery stub publishes a Cover with OPEN/CLOSE/STOP and state_topic shutterState/get. [Elektroda, p.kaczmarek2, post #21767428]
New firmware variables: $mqtt_client, $shortName, $name usable in publish/publishFile. [Elektroda, p.kaczmarek2, post #21769822]

What are CB3S and WB3S in the WF‑CS01?

They are different Wi‑Fi modules found in Etersky WF‑CS01 units across production runs. They expose different pin maps for relays, LEDs, and buttons. Using the wrong mapping causes inverted actions or dead buttons. Pick the matching autoexec.bat script and pin roles for your board. “The constructor used many different cards.” [Elektroda, benjaminklamerek, post #21006126]

How do I map pins for CB3S vs WB3S?

CB3S: P6=Relay UP, P9=Relay DOWN, P24/P10/P7 are Buttons 1/2/3, with LEDs on P14/P8/P23. WB3S: P6=Relay UP, P7=Relay DOWN, P24/P10/P8 are Buttons 1/2/3, with LEDs on P14/P26/P0. Apply setPinRole and setPinChannel exactly as in the posted scripts. [Elektroda, benjaminklamerek, post #21006126]

How do I keep Home Assistant from showing three raw relays instead of one Cover?

Use the HA discovery stub and hide raw channels. Steps: 1) publish d.json (or publishFile) for a Cover entity, 2) map OPEN/CLOSE/STOP to your scripted aliases, 3) SetChannelPrivate 1 on the relay channels before rediscovery. [Elektroda, p.kaczmarek2, post #21768119]

What commands does HA send, and how should I wire them to my script?

Home Assistant sends OPEN, CLOSE, and STOP. Map them to your safe routines, for example: alias open Start_Opening; alias close Start_Closing; alias stop Stop_All. Then publish shutterState updates after each action. “Commands must not change – that’s what HA sends.” [Elektroda, p.kaczmarek2, post #21767517]

How do I publish the Cover discovery to HA?

Publish a JSON config at homeassistant/cover//config and point command_topic to cmnd//backlog with payloads OPEN/CLOSE/STOP. State comes from ~/shutterState/get. Use addEventHandler OnDiscovery and scheduleHADiscovery to send it on boot. [Elektroda, p.kaczmarek2, post #21767428]

Can I avoid hardcoding MQTT names in d.json?

Yes, recent firmware adds variables $mqtt_client, $shortName, and $name. Use them in publish and publishFile for topics and payloads, simplifying multi‑device deployments. Self‑tests confirm variable expansion in topics and payloads. [Elektroda, p.kaczmarek2, post #21769822]

How do I set travel time and stop behavior?

Channel 4 holds run time; set it to your shutter’s measured travel (e.g., 17 s CB3S script, 40 s WB3S script). The scripts stop the active relay, pulse the Stop channel, then clear LEDs. Update shutterState to open/closed after the delay to keep HA in sync. [Elektroda, benjaminklamerek, post #21006126]

What is OpenBeken in this context?

OpenBeken (OpenBK) is the firmware and scripting environment used in the thread to replace Tuya binaries. It provides pin roles, channels, events, MQTT, and HA discovery hooks referenced in the sample autoexec.bat files and docs links. [Elektroda, p.kaczmarek2, post #21007064]

How do I enter AP Safe Mode if I lock myself out?

Use the built‑in counter: press the Stop button 10 times consecutively. The script calls SafeMode 3, enabling recovery without opening the device again. This is useful after a bad network or MQTT setup. [Elektroda, benjaminklamerek, post #21006126]

What’s the safest way to flash these boards?

Many units require desoldering the CB3S/WB3S and using an ESP/Beken burner. It’s a sensitive job; the author broke two devices while learning. If you’re new to SMD work, practice first or use a hot‑air station and shielding. [Elektroda, benjaminklamerek, post #21006126]

Do I really need to prevent both relays from turning on together?

Yes. Driving both directions at once can destroy shutter motors. One user showed HA exposing raw relays, which is unsafe. Always use scripted interlocks and hide raw channels to avoid simultaneous energizing. “Destruction!” was their warning. [Elektroda, Acefx, post #21762120]

My module freezes after opening the Flags page—what’s happening?

A user observed the Flags UI sometimes freezing the module for about 20–30 minutes before it recovers. Avoid that page during commissioning, and update firmware when fixes land. This is a diagnostic note, not normal behavior. [Elektroda, Acefx, post #21768614]

Is there a better long‑term solution than scripting?

A dedicated C driver would integrate cover logic and HA discovery cleanly. For now, the discovery stub plus scripts work and are testable. The maintainer notes a driver would give “best results.” [Elektroda, p.kaczmarek2, post #21767428]

Where can I get improved scripts for WB3S backlight and logic?

See the enhanced autoexec.bat posted later in the thread. It adds backlight toggling, clean aliases, and channel handling for HA. Adapt channel numbers to your wiring before deployment. [Elektroda, dennis3, post #21285677]

How do I quickly test HA discovery before wiring?

Use httpButtons in OpenBK to publish shutterState open/closed and verify HA updates. Then map the HA OPEN/CLOSE/STOP to your Start_Opening/Start_Closing/Stop_All aliases and retest. This isolates MQTT setup issues. [Elektroda, p.kaczmarek2, post #21767428]

Quick 3‑step: how do I flash and script a WF‑CS01 safely?

Desolder the CB3S/WB3S, connect to a compatible burner, and flash OpenBK. 2. Paste the matching autoexec.bat with correct pin roles and Channel 4 timing. 3. Power up, verify buttons/LEDs, then enable HA discovery and hide raw relays. [Elektroda, benjaminklamerek, post #21006126]