改件 (電子) 高手請指教

Squall

加燈一般係用LED, 你不妨過人仔倉睇睇

kok

在深水涉鴨記MTR出口直行,公次對面有間賣電子野的,這裏有超細的LED賣(1mmX2mm),仲有DEMO比人睇,有空去睇下!!:!

ultimatekuuga

You need a LED driver circuit, some LEDs require more current. A LED circuit contains a LED driver IC and  a tew transistors and capacitors. If you want the LED to flash, you need simple IC like the 555 timer IC or a counter IC or you can just use a few logic gates and a few capacitors / transistors (more expensive because more components). Using timer / counter IC is cheaper.

You might be able to buy one flasher circuit on one module , check out the electronics store. If you are not familiar with soldering or electronic components, I suggest you get a flasher module instead. Depending on  the amount of current drive the circuit has,  you might be able to get one module to drive several LEDs.

[ 本文章最後由 ultimatekuuga 於 9-2-2007 12:33 PM 編輯 ]

kok

原文章由 ultimatekuuga 於 9-2-2007 12:21 PM 發表
You need a LED driver circuit, some LEDs require more current. A LED circuit contains a LED driver IC and  a tew transistors and capacitors. If you want the LED to flash, you need simple IC like th ...

有自閃的:shy:

[ 本文章最後由 ultimatekuuga 於 9-2-2007 04:40 PM 編輯 ]

ultimatekuuga

that is because there is a circuit built inside the LED packaging (LED housing).  Not because the LED (semiconductor) can flash on its own.  These are large and only come in certain shape and color. Also, I do not know how much they sell them in HK, but they are usually quite expensive for each. It is usually cheaper to build it yourself or buy a module and drive several different colour LEDs at the same time.

With this, you can not control the timing between flashes. Most IC solution can do that by changing the external components.

[ 本文章最後由 ultimatekuuga 於 9-2-2007 04:57 PM 編輯 ]

分手勿語仔

去鴨記睇啦
好易整嫁啦
之後你加多少少lego件做個盒仔插番上去又遮到囉

大舊金

幫你推一下:)

tomoki

等我比多少少詳細d 既資料你啦.

第一: 當然係真啦. 手機係電子產品,只要線路上接收到手機來電訊號就通電.係現今電子工業黎講係十分容易做到既.

第二: 我會建議你去鴨寮街既華輝搵料, 一般初心者去果到買野的話都會搵到你想要既野.如果你只係加燈, on/off 的話你要既就只要 led, ,開關制,電阻同埋電池座.
led 由1蚊都差唔多10蚊都有, 睇你想買咩色燈.
電阻就要麻煩鋪頭既師傅同你check 啦. 佢要用錶check 過先知你要既阻值.


點走線就要你諗啦

at last, 你當然要有銲接工具啦

唔記得左講, 你要有電線添呀,唔想買既話可以睇下屋企有冇多餘既lan cable, jei係cat 5 果d 8芯線, 用果d 就得

[ 本文章最後由 tomoki 於 10-2-2007 12:14 AM 編輯 ]

EMS

原文章由 tomoki 於 9-2-2007 23:47 發表
等我比多少少詳細d 既資料你啦.

第一: 當然係真啦. 手機係電子產品,只要線路上接收到手機來電訊號就通電.係現今電子工業黎講係十分容易做到既.

第二: 我會建議你去鴨寮街既華輝搵料, 一般初心者去果到買野的 ...

x2