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作者 beagle 在 PTT [ Electronics ] 看板的留言(推文), 共1245則
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1F推:重點只有一個: "店裡有沒有賣"07/30 10:18
5F→:還是有 1% 電阻可以選, 如果真的需要準一點的話...07/31 16:00
1F推:頻率多少?07/29 16:51
2F→:CMOS 的話我推薦 74HC373, 要 HC 的喔07/29 16:55
1F推:有沒有編碼解碼? 有的話應該不需要三組發射接收電路才對?07/29 01:39
2F→:這其中一定有誤會,也許三組發射電路用同一個頻道互相干擾07/29 01:44
5F推:遙控器只有一個, 要控制的裝置也只有一個,07/29 03:59
6F→:一組發射接收裝置就夠了, 或者你是嫌 data bits 不夠用嗎?07/29 04:00
1F推:你的 Vcc 只給 3.3V 對吧? 這樣是正常的, 訊號還是能用。07/28 00:44
3F推:呃... 我沒見過 RS-232 滑鼠, 不知道他的電是從哪偷的...07/28 00:50
4F→:這年頭要找 RS-232 滑鼠很難 ~"~07/28 00:51
7F推:100mA! 這顆 IC 的 datasheet 說他短路時也只有 35mA07/28 12:36
8F→:因為內部是用 switched capacitor 二倍增壓, 電流不會太大07/28 12:37
11F推:這 10mA 好像是偷了 TxD, DTR, RTS 三條線加起來的?07/29 01:49
3F推:哈利路亞, 阿門~ @.@07/31 14:43
1F推:這樣能神得到型號, 除非是有奇蹟...07/26 00:18
6F推:這家明天會莫名其妙接到一大堆訂單 XD07/20 20:30
13F推:TroyLee> 你是不是找到用雕刻機雕電路的? 那種很容易出錯07/22 02:11
14F→:基本上廠商號稱6mil的話,layout時照著設定6mil不會出錯的07/22 02:14
1F→:你忘了要重複啊07/17 15:52
3F→:在適當的地方加 JMP MAIN 就可以了...07/17 16:40
4F→:MAIN: 這個標籤就是做這個用途的啊!07/17 16:40
5F→:抱歉, 我沒看清楚程式... @.@07/17 16:41
6F→:你想達到的是什麼效果可以講解一下嗎? 我看不太懂...07/17 16:45
7F→:照這樣看來 00 數到 99 是一瞬間就完成了, 沒有時間間隔07/17 16:47
9F推:TIME: 那個 subroutine 最後面 JMP MAIN 是做啥的?07/17 18:25
10F→:這樣就沒有跑到 reti 了啊07/17 18:26
1F推:就是砍下去, 割下去, 剪下去, 像拿刀子切繩子那樣07/17 14:54
3F推:只要修改一下 feedback 部份的電路就能改成定電流了07/17 00:08