Need help about a split keyboard

[pppppppp1234]

From this qmk docs, https://github.com/qmk/qmk_firmware/blob/master/docs/feature_split_keyboard.md
I had just create my firmware that consists only two keys to test my split keyboard connectivity (I just wired the D0, VVC and GND pins between the 2 pro micro) but I can't get the other half to register my key.
I don't know what I am doing wrong
This is my config.h file
#define MASTER_LEFT
#define SOFT_SERIAL_PIN D0
#define SPLIT_USB_DETECT

rules.mk
SPLIT_KEYBOARD = yes

info.json
{
    "bootloader": "caterina",
    "diode_direction": "COL2ROW",
    "features": {
        "bootmagic": true,
        "command": false,
        "console": false,
        "extrakey": true,
        "mousekey": true,
        "nkro": true
    },
    "matrix_pins": {
        "cols": ["C6"],
        "rows": ["F4", "F5"]
    },
    "processor": "atmega32u4",
    "url": "",
    "usb": {
        "device_version": "1.0.0",
        "pid": "0x0000",
        "vid": "0xFEED"
    },
    "layouts": {
        "LAYOUT_ortho_4x4": {
            "layout": [
                {"matrix": [0, 0], "x": 0, "y": 0},
                {"matrix": [1, 0], "x": 0, "y": 1}
            ]
        }
    }
}

[pppppppp1234]

This is my wiring for the keyboard
https://ibb.co/7k4387c
https://ibb.co/PWBbC3G
https://ibb.co/qDG7pZn

[zegonix]

did you take a look at other split keyboards configurations? preferably one that uses the same controller.. looking at the config it seems that the solfe might be worth to take a look at.
https://github.com/qmk/qmk_firmware/tree/master/keyboards/sofle/rev1