qmk_firmware/keyboards/tweetydabird/lotus58/rp2040_ce/keyboard.json

{
    "development_board": "promicro_rp2040",
	"encoder": {
        "rotary": [
            {"pin_a": "GP28", "pin_b": "GP29", "resolution": 2}
        ]
    },
    "matrix_pins": {
        "cols": ["GP22", "GP23", "GP20", "GP21", "GP26", "GP27"],
        "rows": ["GP4", "GP5", "GP6", "GP7", "GP8"]
    },
    "split": {
        "encoder": {
            "right": {
                "rotary": [
                    {"pin_a": "GP29", "pin_b": "GP28", "resolution": 2}
                ]
            }
        },
        "soft_serial_pin": "GP1",
        "handedness": {
            "pin": "GP9"
        }
	},
	"ws2812": {
		"driver": "vendor",
		"pin": "GP0"
	}
}