logo elektroda
logo elektroda
X
logo elektroda

LSC Smart Outdoor Spotlights (3pcs) 170lm

HumbleDeer 3888 2
ADVERTISEMENT
  • Please note:
    This device is different from the single outdoor spotlight!

    Overview:
    This device was bought at an Action store in Belgium. It has EAN code 8712879154488. https://www.action.com/nl-be/p/lsc-smart-connect-tuinspots/
    It specifies 3 spotlights, with a light output of 170 lumens. Whether this is total or individual is not specified, but it seems to be for each light independently.
    The lights have both a warm white (not adjustable) as well as RGB mode.
    It uses a 24 Volts DC (Direct Current) mains adapter with a rated wattage for the whole set of 5.2 Watts. Its efficiency rating is F.
    The lights are rated for IP44 dust and moisture ingress.
    LSC Smart Outdoor Spotlights (3pcs) 170lm

    Dissassembly:
    My own disassembly process was unfortunately destructive. The wire got damaged trying to get into the light. The method that ultimately worked for me was to heat it up with a heat gun and bend the plastic out of the way.
    LSC Smart Outdoor Spotlights (3pcs) 170lm

    The outer front ring seems to be glued on in specific, small locations. Along with some very strong plastic and alignment tabs, I was unable to get the parts dislocated. This would likely have been possible with more patience, longer heating, and appropriate tools to get them to come apart. Note that the plastic lens is behind a lip of plastic, and cannot be removed from the front without destruction. It's also not necessary to remove the lens in order to complete the teardown.
    LSC Smart Outdoor Spotlights (3pcs) 170lm LSC Smart Outdoor Spotlights (3pcs) 170lm LSC Smart Outdoor Spotlights (3pcs) 170lm

    Observing the inner components, we can see a small PCB mounted on a couple of plastic pegs. In my unit, one of the screws was already unscrewed partially (or rather, not fully seated from the factory). The PCB comes out when these screws are undone.
    LSC Smart Outdoor Spotlights (3pcs) 170lm LSC Smart Outdoor Spotlights (3pcs) 170lm

    Inspecting the electronics, one can find a ribbon cable running off to the other two lamps (driven by the board in the first) as well as the LED's and driver board inside. There was an unpleasant surprise on the input wiring on my unit... 👀

    The microcontroller board / module is a Tuya model CB2L. You can read more about this module on the
    Tuya Developer website. Since this module uses the Beken Corporation BK7231N, this module should be compatible with OpenBK: Github - openshwprojects / OpenBK7231T_App - Wiki
    LSC Smart Outdoor Spotlights (3pcs) 170lm LSC Smart Outdoor Spotlights (3pcs) 170lm

    Unfortunately, the pins we need for flashing firmware on to this module are hidden on the back of the module when attached to the device's PCB.
    According to Tuya's documentation, this is the pinout of the device:

    Top / front
    LSC Smart Outdoor Spotlights (3pcs) 170lm
    Pin numberSymbolI/O typeFunction
    1P8I/OSupport hardware PWM
    2P7I/OSupport hardware PWM
    3P6I/OSupport hardware PWM
    4P26I/OSupport hardware PWM
    5P24I/OSupport hardware PWM
    6GNDPowerPower supply ground
    73v3PowerPower supply 3v3


    Bottom / rear
    LSC Smart Outdoor Spotlights (3pcs) 170lm
    SymbolI/O typeFunction
    CSNI/OMode selection pin. Pull low to enter flashing mode.
    RSTIHardware reset pin. High level by default, active low.
    TX1I/OUART1_TX, user serial interface.
    RX1I/OUART1_RX, user serial interface.
    TX2I/OLOG TX.
    GNDPPower supply reference ground.
    RFI/ORF test point.

    Cool? Ranking DIY
    About Author
    HumbleDeer
    Level 4  
    Offline 
    HumbleDeer wrote 9 posts with rating 4. Been with us since 2022 year.
  • ADVERTISEMENT
  • #2 20330954
    p.kaczmarek2
    Moderator Smart Home
    Great presentation, but.... oh no, I can see how covered RX/TX pads can be an issue! You might need to do that (unless the cloud cut tool already supports that bulb?):
    LSC Smart Outdoor Spotlights (3pcs) 170lm
    I have covered similar issue in this topic:
    two hard to programs WB2L_M1 LED bulbs
    and in this video:



    Yea, I know, full translations are coming soon...
    How good are you soldering skills?
    Helpful post? Buy me a coffee.
  • #3 20330959
    HumbleDeer
    Level 4  
    I've used hot air to desolder the module. I'll attach some fly leads, and solder the module back on. I'd like to be able to use the module while it's on the original board so I can still flash it later with openBK. I'd prefer to keep it on the original firmware for now to document the features. I'll carefully try and read out the firmware now.
ADVERTISEMENT