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目前顯示的是 8月, 2025的文章

arduino leonardo as keyboard input

 I need a fast key for space bar and arrows to control netflix.  arduino has a keyboard.h lib for HID capable, seach on web, it seems keyboard sends out value for each key. presented as key codes I need: VK_SPACE 0x20 空格鍵 VK_LEFT 0x25 向左鍵 VK_RIGHT 0x27 向右鍵 I tried example from keyboard.write()  it write "A" when D2 pressed. it works, but print out several "A"s, when pressed once, I think I need to use edge detection.  鍵 盤 鍵 碼 值 對 照 表   數字鍵 鍵碼值   數字鍵 鍵碼值   數字鍵 鍵碼值 1 49 F1 112 Numbpad 0 96 2 50 F2 113 Numbpad1 97 3 51 F3 114 Numbpad2 98 4 52 F4 115 Numbpad3 99 5 53 F5 116 Numbpad4 100 6 54 F6 117 Numbpad5 101 7 55 F7 118 Numbpad6 102 8 56 F8 119 Numbpad7 103 9 57 F9 120 Numbpad8 104     F10 121 Numbpad9 105     F11 122 Multiply (*) 106     F12 123 Add (+) 107         Enter 108         Subtract (-) 109         Decimal (.) 110         Divide (/) 111 字母 鍵碼值 字母 鍵碼值 其它鍵 鍵碼值 其它鍵 鍵碼值 A 65 N 78 Backspace 8 Left Arrow 37 B 66 O 79 Tab 9 Up Arrow 38 C 67 P 80 Clear 12 Right Arr...