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Novadigital 1-Way Smart Switch BK7231N Pinout, UART, and Tuya JSON Configuration

tadeu1 48 0
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  • #1 21804694
    tadeu1
    Level 5  
    New device flashed (BK7231N)
    Theres no module, they develop the pcb with the BK7231N, its hard to find the pinout, but i found it.
    Novadigital 1 way smart switch
    attached the original fw

    CONNECT ALL UART
    3.3, GND, TX , RX
    short cut fast CEN to GND

    PINOUT
    P6 = CEN
    P5 = RX
    P4 = TX
    P1 = GND
    C8 = 3.3

    photos

    Compact Wi-Fi smart module and box with technical specifications label Novadigital module PCB with BK7231N chip, labeled pins and components visible PCB with BK7231N module, labeled pins, and components from a smart switch Novadigital MINI 1 Channel module with screw terminals and labeled packaging FANHAR relay module with capacitors and screw terminals on a green PCB Close-up of a PCB with push button, chips, and labeled terminal blocks Close-up of PCB with BK7231N chip and labeled UART pinout Close-up of PCB with BK7231N chip, button, and surrounding SMD components PCB with BK7231N module, connected via jumper wires to a breadboard


    --------------
    JSON
    --------------
    {
       "rl1_lv":"1",
       "on_off_cnt":"10",
       "onoff_rst_m":"1",
       "onoff_clear_t":"10",
       "rand_dpid":"42",
       "net_trig":"2",
       "onoff_n":"3",
       "netled1_lv":"0",
       "jv":"100",
       "onoff_rst_type":"2",
       "total_bt_pin":"8",
       "nety_led":"2",
       "total_stat":"0",
       "reset_t":"5",
       "netled1_pin":"6",
       "remote_add_dp":"49",
       "remote_list_dp":"50",
       "net_type":"0",
       "inch_dp":"44",
       "rf_width":"359",
       "module":"CBU",
       "ch_cddpid1":"9",
       "remote_io":"23",
       "onoff1":"14",
       "clean_t":"5",
       "init_conf":"38",
       "zero_select":"0",
       "onoff_type":"0",
       "series_ctrl":"0",
       "total_bt_lv":"0",
       "cyc_dpid":"43",
       "remote_select":"1",
       "ch_num":"1",
       "rl1_pin":"15",
       "netn_led":"2",
       "ch_dpid1":"1",
       "crc":"10"
    }




    --------------
    TEXT
    --------------


    Device configuration, as extracted from Tuya:
    - Pair/Toggle All Button on P8
    - WiFi LED on P6
    - RF Remote on P23
    - TglChannelToggle (channel 1) on P14
    - Relay (channel 1) on P15
    Device seems to be using CBU module, which is using BK7231N.
    And the Tuya section starts, as usual, at 2023424
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