lvgl8仪表盘指针

在LVGL8中，仪表盘的指针是通过lv_gauge_set_value函数来设置的。该函数的参数包括仪表盘对象(gauge)、指针id号(needle_id)和指针所指向的数值(value)。具体用法可以参考LVGL8的文档和。而LV_GAUGE_PART_NEEDLE虚拟小部件则用于描述针的属性，例如大小和背景属性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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