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Noname AliExpress 3-Phase EVSE with WBR3 Module: Internal Photos and UART Header?

evlo2 156 0
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  • #1 21818331
    evlo2
    Level 5  
    No-name AliExpress 3-phase EV charger (EVSE) with WBR3

    Differences from:
    https://www.elektroda.com/rtvforum/topic4085036.html#21754359 - this one does not have a connection to the electrical meter and is 3-phase
    https://www.elektroda.com/rtvforum/topic4159907.html - this one is 3-phase

    These are only pictures of the inside, without any software/MCU hacking. If this is not supposed to be here, please feel free to delete it.



    Interior of 3-phase EV charger with visible relays, wires, and PCB componentsEV charger PCB with RFID module and WBR3 module connected by flat ribbon cable

    WBR3 module and UART header on EVSE circuit board
    Close-up of PCB with microcontroller, Wi-Fi module, and UART label

    Close-up of multicolored wires connected to a component labeled 252B22 MC003E1-ES Close-up of wires and 4-pin connector inside an EV charger housing Close-up of PCB with colorful wires and connector labeled T1 CP +5V Close-up of ZCTB2126 current transformer in EV charger with colorful wires WBR3 module on PCB with RFID reader and UART header visible
    WBR3 module on PCB with DIP switches and CE marking visible Close-up of a PCB with GigaDevice microcontroller and UART header WBR3 module on PCB with visible pins and labeled components


    what does SW1 seem to do:
    1,2 - i do not understand exactly, but seem to switch between 8,10,13,16A and 16,20,24,32A modes for the button
    3 - most likely 1/3 phase
    4 - switches C and F and also switches the limit up to 40/50A - I guess as USA do not use 3 phases

    there is no way to be able to set less then 8A out of box

    ARM chip is
    GigaDevice
    GD32F303
    RET6
    FX0K596
    A02515
    https://download.gigadevice.com/Datasheet/GD32F303xx%20Datasheet%20Rev3.2.pdf

    Identifies itself as GO-E31-32A in device scan

    HEADER seems to be

    PB11 Alternate: I2C1_SDA, USART2_RX
    VCC

    Header seems to be
    DIO CLK GND VCC

    PIDS
    {"1":"Forward active power","3":"Device State","4":"Set current","6":"Phase A","7":"Cumulative power","8":"Phase C","9":"Device","10":"Fault","13":"Connection State","17":"Energy","18":"Open","19":"Schedule charging","24":"Temperature","25":"Once Charge Energy","28":"延时充电设置","33":"Charging operation","101":"Customize Scene","102":"Current Voltage","103":"Phase A Current","104":"Phase B voltage","105":"Phase C voltage","106":"Phase B Current","107":"Phase C Current","108":"Power","109":"Phase A voltage","110":"Time","111":"Cook Time","112":"SetDefineTime","113":"Timer Sync","114":"Time","115":"Target Time","116":"Charging Operation","117":"SetDelayTime","118":"状态","119":"RFID card enable"}
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