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Arlec PB88UHA Grid Connect Smart 4 Outlet Powerboard with USB Charger

kaldek 2388 14
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  • Product Information
    This is a four socket powerboard with in-built USB chargers (USB-A and USB-C, 5v 3.4 amp combined). The four power sockets can be controlled on or off via WiFi, and there is a master On/Off button which - by default using Tuya - turns off all four ports. The model is PB88UHA, and used to come with an ESP8285-based contoller but is now provided with a BK7231T controller.

    https://www.bunnings.com.au/arlec-grid-connec...4-outlet-powerboard-with-usb-charger_p0074829
    Arlec PB88UHA Grid Connect Smart 4 Outlet Powerboard with USB Charger

    Arlec PB88UHA Grid Connect Smart 4 Outlet Powerboard with USB Charger

    The controller chip is a Tuya WB2S which is just a BK7231T. The form factor for this board is that it is inserted upside down into the main board as shown in the image above, with only the pins showing. For reflashing with OpenBeken, I used solder wick to remove all the solder, then removed the three screws as indicated with the arrows, and removed the WB2S board. Reflashing is as for any WB2S, using the VCC, GND, TXD, RXD and CEN pins. CEN must be wired to the RST pin of your programmer to put the board into programming mode.

    Pins are configured as follows in the JSON format within the Web Application:
    Code: JSON
    Log in, to see the code


    The above translates to:
    -Pin 6: Relay 3
    -Pin 7: Relay 2
    -Pin 8: Relay 1
    -Pin 24: Relay 4
    -Pin 10: Button
    -Pin11: WiFiLED_n

    For the MQTT configuration in Home Assistant, I didn't do anything with the button as I have no need for controlling that or doing anything with it really.

    Cool? Ranking DIY
    About Author
    kaldek
    Level 4  
    Offline 
    kaldek wrote 4 posts with rating 1. Been with us since 2023 year.
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  • Helpful post
    #2 20535775
    p.kaczmarek2
    Moderator Smart Home
    Thank you, it's worth to add that even tough you didn't configure the button, there is already a ready script for such device in our examples:
    https://github.com/openshwprojects/OpenBK7231T_App/tree/main/docs
    Here:
    https://github.com/openshwprojects/OpenBK7231T_App/blob/main/docs/autoexecExamples.md
    
    setChannelType 1 toggle
    setChannelType 2 toggle
    setChannelType 3 toggle
    setChannelType 4 toggle
    setChannelType 5 toggle
    // Btn_ScriptOnly is set on P26
    addEventHandler OnClick 26 ToggleChannel 1
    addEventHandler OnDblClick 26 ToggleChannel 2
    addEventHandler On3Click 26 ToggleChannel 3
    addEventHandler On4Click 26 ToggleChannel 4
    addEventHandler On5Click 26 ToggleChannel 5
    
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  • #3 20537708
    fokcuk
    Level 5  
    Is there any working profile in the CloudCutter for OTA update?

    Thank you
  • #4 20537763
    kaldek
    Level 4  
    fokcuk wrote:
    Is there any working profile in the CloudCutter for OTA update?


    I gave up on Cloudcutter checks for all my devices as I started buying these all after Tuya had patched out these vulnerabilities. I just went straight for the soldering iron.
  • #5 20537799
    p.kaczmarek2
    Moderator Smart Home
    Please watch our flashing guides to learn how to change firmware by using UART programmer.
    https://www.youtube.com/watch?v=L6d42IMGhHw&l...CZDbczAXT94BuSGrd_GoM&ab_channel=Elektrodacom
    our guides are beginner-friendly and also cover topics like soldering, etc
    Helpful post? Buy me a coffee.
  • #6 20537949
    fokcuk
    Level 5  
    Unfortunately not everything can be done without me destroying it in the process =)
  • #7 20538725
    fokcuk
    Level 5  
    turned out that my board has an ESP chip on it still (older kind) and was able to flash it to Tasmota
    Thank you![/tr]
  • #8 20538791
    p.kaczmarek2
    Moderator Smart Home
    Don't forget that with OpenBeken, you can control Tasmota and OBK devices with the same app, for example with ioBroker and Tasmota Control app from Google Play (Tasmota Remota, etc)
    Helpful post? Buy me a coffee.
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  • #9 20556112
    mattmck
    Level 4  
    >>20537708
    I tried today and didn't have much luck with cloudcutter, but did notice that my unit had module version 1.0 which I thought was strange.
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  • #10 20556114
    fokcuk
    Level 5  
    Mine was ESP based so flashed with OTA Tasmota no problem
  • #11 20556866
    mattmck
    Level 4  
    As in Tuya-Convert is what you used rather than cloudcutter?
  • #12 20556892
    p.kaczmarek2
    Moderator Smart Home
    Tuya-convert still works for older devices, but it's up to your luck to decide.
    Helpful post? Buy me a coffee.
  • #13 20556958
    fokcuk
    Level 5  
    >>20556866
    Just check your device MAC address. If it's ESP chip - try tuya convert
  • #14 20556986
    mattmck
    Level 4  
    Hadn't even thought of that. If I grab the MAC am I then just using a lookup tool or is there a particular reference I am checking against?

Topic summary

The Arlec PB88UHA Grid Connect Smart Powerboard features four WiFi-controlled power sockets and built-in USB chargers (USB-A and USB-C, 5V 3.4A combined). Users have discussed the device's controller, which has transitioned from an ESP8285 to a BK7231T chip, and the potential for reflashing the firmware using OpenBeken or Tasmota. Several users shared experiences with flashing the device, noting the challenges with OTA updates and the effectiveness of tools like Tuya-Convert and CloudCutter. The discussion also included references to using scripts for button configuration and controlling multiple devices through apps like ioBroker.
Summary generated by the language model.
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