Cov txheej txheem:
- Kauj Ruam 1: Ua haujlwm ntawm Circuit
- Kauj ruam 2: Pib Pib
- Kauj ruam 3: Soldering
- Kauj Ruam 4: Ua kom lub Circuit Court
- Kauj Ruam 5: Qhov tshwm sim ntawm Txoj Haujlwm
Video: Nres Saib Tsis Muaj Kev Tsim Kho: 5 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Hav guys, Rau txhua tus pib, ntawm no yog qhov haujlwm txias uas koj tuaj yeem tsim yam tsis muaj lub program. Nws yog qhov yooj yim thiab tseem raug nqi zoo.
Ua ntej pib, cia saib ntawm daim ntawv teev npe:
ICs siv:
1) 555 timer-x1
2) CD 4081BE (THIAB rooj vag)-x1 "https://www.amazon.com/CD4081BE-CD4081-4081BE-DIP-…"
3) CD 4071 (LOS YOG lub qhov rooj) -x1 "https://www.amazon.com/Xucus-CD4071-CD4071B-CD4071…"
4) CD 4026B -x3 "https://www.amazon.com/Texas-Instruments-CD4026BE-…"
Lwm yam khoom siv:
1) 7- ntu digital display- x3 "https://www.amazon.com/Plastic-Common-Segment-Disp…"
2) Laub khawm hloov (RESET) -x1
3) Laub khawm hloov (PAUSE) -x1 "https://www.amazon.com/Cylewet-Self-Locking-Latchi…"
4) ON/OFF hloov -x1
5) Hloov pauv (DPDT/SPDT)- x1
6) 1kilo ohms resistor-x2
7) 10 kilo ohm kuj tsis paub meej resistor-x1
8) 100 microfarad capacitot- x1
9) 470 ohm resistor-x3
10) 0.1 micro farad capacitor-x2
11) buzzer-x1
12) LED-x2
13) 10 kilo ohm rub qis resistors-x7
14) Roj teeb 9v thiab lub roj teeb
15) 7805 tus tswj hluav taws xob-x1
Kauj Ruam 1: Ua haujlwm ntawm Circuit
Kuv tsim lub voj voog no ua lub sijhawm saib xyuas rau kuv txoj haujlwm. Kuv tau tsim cov phiaj xwm hauv ib txoj hauv kev uas nws ua rau kuv qhia lub suab nrov rau txhua 10 vib nas this.
IC 4026 ntawm no tsav 7 ntu zaub. Nws nce qhov suav los ntawm 1 txhua lub sijhawm nws tau txais cov mem tes (qis rau siab hloov pauv ntawm cov mem tes). Lub plawv dhia tau tsim los siv lub sijhawm IC 555 uas txuas nrog hauv hom astable. Cov zis ntawm 555 ic yog txuas nrog lub moos nkag ntawm IC 4026 (tus pin 1). Qhov no 4026 IC (ic nyob rau sab xis saum toj hauv kab lus) yog txuas ncaj qha nrog 555 ic.
Thaum tus lej hauv IC4026 tau mus txog tus lej '9', nws mam li pib los ntawm xoom thiab xa tawm mem tes los ntawm nws tus lej cascade (tus lej lej 5). Tus pin no txuas nrog IC 4026 tom ntej uas yuav ua rau nws nce nws suav los ntawm '0' txog '1'. Qhov no sawv cev rau kaum qhov chaw hauv ntu 'vib nas this'. Raws li qhov nce ntxiv hauv ntu thib ob, nws yuav tsum tsis pub tshaj 60 (li 1 feeb = 60 vib nas this). Yog li, cov rooj logic ua lub luag haujlwm tseem ceeb ntawm no. Ob THIAB rooj vag thiab OR lub qhov rooj nrog lawv rub tawm cov neeg tawm tsam tau txuas nrog raws li cov lej hauv ib txoj hauv kev uas lawv cov zis tau siab thaum qee qhov qauv ntawm ntu tshwj xeeb rau tus lej '6' tau txais kev pom kev. Qhov kev tso tawm no txuas nrog tus pin pib dua 15 ntawm tus ic thiab rau tus pin moos ntawm tus thib peb IC 4026.
Yog li peb tau ua tiav hloov pauv ntawd 60 vib nas this rau 1 feeb. Cov txheej txheem no tau ua txhua txhua lub sijhawm suav suav mus txog '60'.
Lub pob 'Pib dua' txuas nrog tus pin 15 ntawm tus thib peb IC4026 thiab txuas mus txuas uas txuas tus pin 15 (rov pib dua tus pin) ntawm tus thib ob IC4026 kom rov pib dua ICs rau 0. Yog tias koj lub roj teeb tsis tuaj yeem xa ntau npaum li tam sim no xav tau txhawm rau hloov qhov txuas mus, koj tuaj yeem siv PNP transistor los ntawm kev txuas lub hauv paus rau tus pin rov pib dua (ntawm 200ohm resistor) thiab nws cov neeg sau khoom mus rau lub relay's coil terminal.
Qhov 'Pause' hloov pauv tau txuas nrog lub moos txwv tsis pub tus pin ntawm thawj IC 4026 kom nws tuaj yeem cuam tshuam lub moos mem tes thiab yog li nres lub ic los ntawm kev nce qib nws cov zis. Ib '0.1 micro farad' capacitor tau ntxiv rau txhua qhov hloov pauv inorder kom tsis txhob muaj teeb meem debouncing.
Lub suab nrov uas nrov nrov rau txhua 10 vib nas this txuas nrog thawj IC 4026 nyob rau hauv ib txoj hauv kev uas nws nrov txhua lub sijhawm nws nyeem tus lej '0'. Qhov no tau ua tiav siv cov rooj logic.
Cov LEDs tau txuas nrog cov zis ntawm 555 ic los qhia lub moos mem tes.
Yog li tom qab 10 feeb lub Circuit Court rov pib dua rau '0'.
Kauj ruam 2: Pib Pib
Raws li ib txwm ua ntej pib txhawm rau txhawm rau ua cov khoom sib xyaw hauv perfboard, sim tawm hauv Circuit Court hauv lub khob cij.
Ua nws ib qib zuj zus hauv lub khob cij kom koj tuaj yeem zam kev sib cuag xoob thiab kev sib txuas tsis raug. Tom qab ua txhua qhov kev sib txuas hauv lub rooj noj mov, nws yuav zoo li ntau cov xov hlau.. tab sis koj tsis tas yuav txhawj txog qhov ntawd vim nws tsuas yog rau kev sim thiab koj yuav hloov qhov ntawd mus rau hauv ib qho muag muag.
Kauj ruam 3: Soldering
Tom qab kuaj tawm lub Circuit Court, muab lawv tso rau hauv koj daim duab. Muaj cov schematics los ntawm koj ib sab thaum siv cov khoom siv dag zog.
Nco ntsoov siv lub hauv paus rau ic kom koj tuaj yeem zam kev puas tsuaj rau lawv thaum siv cov khoom siv dag zog.
Kauj Ruam 4: Ua kom lub Circuit Court
Txhawm rau tsim txoj haujlwm no ntawm tus nqi qis, kuv tau siv lub roj teeb lub dav hlau los ntawm lub roj teeb 9V qub los ua lub roj teeb thiab ua kom sov rau lawv.
Kuv tau tsim lub Circuit Court rau 5v. Yog li nco ntsoov siv tus ntsuas hluav taws xob (7805) txhawm rau txhawb koj lub Circuit Court.
Lub dab dej kub tsis xav tau vim nws yuav kos tsawg dua tam sim no. Koj tseem tuaj yeem siv lub hwj chim ncaj qha siv lub roj teeb 9v tab sis qhov ntsuas qhov ntsuas yuav hloov.
Kauj Ruam 5: Qhov tshwm sim ntawm Txoj Haujlwm
Nov yog qhov Circuit yuav ua haujlwm li cas tom qab ua tiav. Koj tuaj yeem ua rau nws ntau dua. Kuv nres saib yog loj me ntsis raws li kuv tsis pom qhov thaiv kom raug rau qhov ntawd.
"Tsis muaj dab tsi zoo li kev kawm los ntawm kev tshawb fawb"
Pom zoo:
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