Author Topic: My 7-Segment Multiplexing Display. Using MikroC Pro (Read 1351 times)

BANNEDMemberAccount · « **on:** June 25, 2011, 11:05:04 PM »

This is My first project of 7- segment

Gumamit ako ng MikroC, common Anode LED Display. PIC16F877a, wala pa akong pnp na transistor kaya wala pa sa actual, dapat pala common cathode pinbili ko angdami kong npn na transitor

gusto kong gawin ng sa isang view different display,. kailangan bang gumamit na nun ng different port?

Philippine Electronics Forum · « **on:** June 25, 2011, 11:05:04 PM »

0b00000111 · « **Reply #1 on:** June 25, 2011, 11:16:14 PM »

pwede mo naman gamitin yung NPN... naka emitter follower ka... http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/emitfol.html

Philippine Electronics Forum · « **Reply #1 on:** June 25, 2011, 11:16:14 PM »

insomartin · « **Reply #2 on:** June 25, 2011, 11:17:56 PM »

Quote from: 7_SeVeN_7 on June 25, 2011, 11:16:14 PM

pwede mo naman gamitin yung NPN... naka emitter follower ka... http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/emitfol.html

I CONCUR!

Philippine Electronics Forum · « **Reply #2 on:** June 25, 2011, 11:17:56 PM »

BANNEDMemberAccount · « **Reply #3 on:** June 25, 2011, 11:30:01 PM »

pwedi pala mabasa nga

angdami ko kasi 2n3904 at 2n2222a.

kapag ginawa ko ba yan sir na magkakaibang display,

sample ganitong display:

[R] [E] [D]

kailangan ko nabang gumamit ng iba ibang port? o pwedi parin yung sa isang port lang?
yan kasi nasa portd lang ginamit ko.

thanks

Philippine Electronics Forum · « **Reply #3 on:** June 25, 2011, 11:30:01 PM »

0b00000111 · « **Reply #4 on:** June 25, 2011, 11:34:27 PM »

post mo schematic mo dito hehehehe

Philippine Electronics Forum · « **Reply #4 on:** June 25, 2011, 11:34:27 PM »

BANNEDMemberAccount · « **Reply #5 on:** June 25, 2011, 11:51:37 PM »

yan sir:) nde ako gumamit ng 7447 ic o yung 74ls47.

0b00000111 · « **Reply #6 on:** June 26, 2011, 12:02:37 AM »

palitan mo yung PNP mo ng NPN...

sa program invert mo yung operation ng PORTD mo... kasi kung io-on mo siya, kelangan ng PNP na 0V sa base nya, pag naka emitter follower ka, 1 ang kelangan.... dagdagan mo na rin ng pull-down resistor sa emitter ng NPN kasi parang doon yata ako nagkaproblema dati sa simulator ng Proteus (yung absence ng pull-down resistor).

BANNEDMemberAccount · « **Reply #7 on:** June 26, 2011, 05:45:41 AM »

ah opo try o po thanks +

BANNEDMemberAccount · « **Reply #8 on:** March 27, 2012, 06:52:31 PM »

nde umilaw sa actual simulation nun gumamit ako ng npn transistor tama naman yung program, pati sa simulation gumagana naman, nun sinukat ko yung voltage na lumalabas sa transistor parang kulang, yung powersource pala ay ok rin

Philippine Electronics Forum · « **Reply #8 on:** March 27, 2012, 06:52:31 PM »

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