Tes Ua IR Chaw Taws Teeb: 5 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Hauv kuv qhov haujlwm yav dhau los Kuv siv cov cuab yeej no ua IR Transmitter thiab cog lus tias yuav muab cov lus piav qhia qhov haujlwm no tso rau hauv cov lus qhia tom ntej no. Yog li ntawm no kuv nthuav qhia koj IR Transmitter siv 555 Timer. Qhov no tuaj yeem ua tiav los ntawm kev siv 555 Timer.

Kauj Ruam 1: Daim duab qhia chaw

Hauv Circuit Court saum toj no, 555 Timer yog siv raws li Astable Multivibrator. 100μF capacitor (C1) yog siv los txo qhov ripples hauv lub hwj chim. 1st thiab 8th tus pin ntawm 555 tau siv los muab hwj chim Vcc thiab GND feem. Tus lej thib 4 yog tus pin rov pib dua uas yog lub zog nkag qis, yog li nws txuas nrog Vcc. Tus lej thib 5 yog Tus Tswj Hluav Taws Xob tus pin uas tsis tau siv hauv daim ntawv thov no, yog li nws tau muab pov tseg los ntawm lub tshuab hluav taws xob kom tsis txhob muaj suab nrov ntau dhau los ntawm tus pin. Capacitor C2, Resistors R1, R2 txiav txim siab lub sijhawm lub sijhawm oscillation. Capacitor C2 tsub rau Vcc ntawm resistors R1 thiab R2. Nws tawm los ntawm Resistor R2 thiab 7th tus pin ntawm 555. Qhov hluav taws xob hla lub capacitor C2 txuas nrog rau sab hauv sib piv ntawm 2 thiab 6 tus pin ntawm 555. Cov zis tawm los ntawm 3ed tus pin ntawm IC. Lub sijhawm them lub sijhawm tas li ntawm lub capacitor (tso tawm HIGH lub sijhawm) yog txiav txim siab los ntawm kev qhia tawm 0.693 (R1+R2) C2 thiab lub sijhawm tso tawm tas li (tso tawm lub sijhawm qis) txiav txim siab los ntawm 0.693R2C2. Lawv kwv yees kwv yees sib npaug. Koj tuaj yeem siv tus pin RESET ntawm 555 rau xa cov ntaub ntawv binary.

Kauj Ruam 2: Yuav Tsum Tau

1. 9V roj teeb (Kuv siv lub roj teeb 9V qub) 2. 100uF capacitor (yeem) 3. 0.001uf capacitor 4.1uf capacitor 5. 1 K resistor 6. 100 Ohms resistor 7. 20 K resistor 8. 1 lossis 2 IR LED's 9. Hloov 10. NE555 Timer IC

Kauj Ruam 3: Tiav Khoom

cov no yog qee cov duab ntawm cov khoom tiav li cas nws zoo ib yam. Kuv tseem ntxiv PCB txheej txheem rau cov uas tsis xav siv cov xov hlau. Lub phiaj xwm kawg uas qhov kev cia siab no vam tias koj nyiam nws.. Raws li peb qhov kev sim TSOP1738 tau kuaj pom nws tab sis koj yuav tau txais ntau yam ntxiv yog tias koj siv 38KHz tseeb. Koj kuj tseem tuaj yeem siv 18K tus tiv thaiv hloov 20K uas yuav tsim 39KHz. Zoo dua koj tuaj yeem sim ua ntej ua ntej kom raug 38KHz.

Kauj Ruam 4: Qee Qhov Xam Xaj

Txij li thaum peb tab tom siv Circuit no hauv Astable hom thiab peb xav tau 38 khz ces peb yuav tsum siv R1 = 1.025k, R2 = 18.47k thiab c1 = 1nf lossis peb tuaj yeem hais tau 0.001uF. Txij li thaum peb tsis tuaj yeem tau txais 18.47 k thiab 1.025 k resistor ces peb siv ntawm no yog 20k thiab 1 k resistor tom qab siv cov resistor no peb tau 35.188 khz. Yog tias peb yuav siv qhov tseeb 18 K thiab 1 k resistors hauv Circuit nws yuav muab 38.992 khz. Txij li tus lej thib 5 yog Tus Tswj Hluav Taws Xob tus pin uas tsis siv rau hauv daim ntawv thov no, yog li nws tau muab pov tseg los ntawm lub tshuab hluav taws xob kom tsis txhob muaj suab nrov ntau dhau los ntawm tus pin. C3 = 0.01uF yuav tsis cuam tshuam rau qhov suav. yog li koj tuaj yeem tshem nws. Nws lig nyob ntawm koj.

Kauj Ruam 5: Dab Tsi Ntxiv

Tom ntej:- IR Chaw Taws Teeb Tswj Chaw Ua Haujlwm Yav dhau los:- Hnub Valentine:- DIY