树莓派能给 3.5 寸硬盘供电吗？ - V2EX
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wikiwiki6

树莓派能给 3.5 寸硬盘供电吗？

  •   
  •   wikiwiki6 Feb 18, 2022 via Android 1315 views
    This topic created in 1531 days ago, the information mentioned may be changed or developed.
    RT ，能不能通过 gpio 向硬盘上的 8 个针脚供电
  • 供电
  • 树莓
  • GPIO
  • 针脚
    4 replies
    villivateur
        1
    villivateur  
       Feb 18, 2022 via Android
    不能，功率远远不够
    Tink
        2
    Tink  
    PRO
       Feb 18, 2022 via Android
    不行，usb 拖硬盘盒也不行
    vmebeh
        3
    vmebeh  
       Feb 18, 2022 via iPhone
    没 12v ，有也不行
    CEBBCAT
        4
    CEBBCAT  
       Feb 18, 2022
    特别提醒，GPIO 灌入、流出电流的限制都不高，是为了传递信号设计的，不要拿它们做电源用。


    不是有带外部供电的 USB Hub/硬盘盒吗？试试他们吧
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