menu "BMU Display"
    config BMU_DISPLAY_BACKLIGHT_GPIO
        int "Backlight GPIO"
        default 47
    config BMU_DISPLAY_BL_DIM_TIMEOUT_S
        int "Backlight dim timeout (seconds, 0=never)"
        default 30
    config BMU_DISPLAY_REFRESH_MS
        int "UI refresh period (ms)"
        default 500
    config BMU_CHART_HISTORY_POINTS
        int "Chart history ring buffer size (points per battery)"
        default 600
        help
            Number of data points kept per battery for the V/I chart.
            At 500ms sampling, 600 = 5 minutes of history.
            Memory cost: 600 * 8 bytes * 16 batteries = 76.8 KB.
endmenu
