huong dan lam led cube

8/3/2019 Huong Dan Lam Led Cube

1/15

Hng dn lm led cube 5x5x5 vi 89s52

I, Cn ni qua mt cht v led cube 5x5x5 cu to v nguyn tc hot ng camch :

LED CUBE c to thnh t 125 bng LED, xp thnh 5 lp, mi lp 25 bng.

iu t bit l ta khng dng 125 mi ni thp sng tng bng m thay vo, ta mc chung cc chn anode ca 25 bng trn 1 lp li vi nhau v mcchung 5 chn cathode to thnh ct (c 25 ct).

cho 1 led bt k bt sng, u tin ta ni chn anode chung ca lp vi imc in th cao, khi 25 bng led s c chn anode c gn vi im inth cao, vic cn li l ni im in th thp cho chn cathode ca bng ledno cn thp sng.

Vic cp in th cao cho cc lp c thc hin bi 5 transistor PNP. 5Transistor ny c iu khin bi 5 chn IO ca vi iu khin v c phncc vng bo ha v vng ngng tng ng vi mc logic 0 v 1 (ngcmc logic vi chn IO ca vi iu khin) Vic cp in th thp cho cc ctc thc hin bi 25 chn IO ca vi iu khin, do khng c transistor nhndng nn khi khi tnh ton in tr hn dng cho led phi lu n kh nng


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nhn dng ca chn IO vi iu khin (thng s IOL khong 200mA l ti a). thi im no , mi chn ny phi nhn dng t 5 bng led ca 1 ct. S nguyn l iu khin sau y:

II, Cc bc thc hin


3/15

1, Chn led :Ty vo mi ngi m chn mu sc led khc nhau , nhng cn phi ch inp ca tng led khc nhau m tnh ton gi tr ca in tr .Led thng cchn l led v c m bo pht sng raxung quanh tt nht.

2, To khung led:

Tham kho cch lm ca cc trang web nc ngoi thy phng php c sdng nhiu thng l lm khun xong khoan l va bng led sau hn dy.Vi cch lm ny m bo cc led thng nhau trnh chm chp . Khun yc th dng g p , g dn , nhng theo nh mnh lm th bng xp l tin linht vn m bo cht lng


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5/15

Sau khi c khung xong ta tin hnh b chn led nh sau anot l chn di hn tab vung gc ,chn katot gi nguyn sau khi b ta tin hnh hn led .Hn 25led ta c 1 lp th nht ,


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9/15

Sau khi 5 lp ta tin hnh ghp khi led


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Khi c khi led hon chnh gn led vo v hn dy ni3,Thit k mch:Ty kh nng lp trnh ca tng ngi m chn cc chip khc nhau nh AVRhay PIC , i vi ngi mi hc tt nht nn chn 8051 n gin v thng dng.Di y l s nguyn l mch dng 89s52 do mnh thit k:


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V PBC dng orcad:

Do ang trong qu trnh thi nn cha c thi gian hon thin mi ch xong phnkhi led.Show vi bc cho mi ngi xem .Phin bn chnh thc s cupdate ln trang web trong thi gian sm nht !


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Update ngy 15/01/2011

Sau 3 tun thi c bn rn cui cng cng xong , vic u tin phi lm lhon thin qu led cube 5x5x5 v chi tt .Hn nay cng gn xong mnh update trc mt s hnh nh mi nht v n

cho mi ngi coi :

Phn mch:

Phn khung hm nay c gn hp meka :


15/15

Phn mch coi nh n cng vic hin gi l lp trnh hiu ng cng vt vy , hi vng s ra mt mi ngi sm nht.

huong dan lam led cube

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