WAVE SWITCH -- TOUCH LESS SWITCH USING 555: 4 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Nyob Zoo Sawv Daws Zoo Siab Txais Tos

Hnub no kuv tab tom tsim qhov yooj yim kov tsawg dua hloov pauv, nws tau qhib los ntawm tsuas yog co peb txhais tes nrog kev pab ntawm Infrared sensor thiab 555 timer IC yog li cia peb tsim nws ….

Nws txoj haujlwm yog yooj yim li 555 ua haujlwm flip-flop nws lub khw muag khoom ua ntej lub xeev cov tswv yim thiab cov txiaj ntsig hloov pauv txhua lub sijhawm thaum cov khoom hloov pauv

Lub 555 timer hauv hom bistable xws li flip-flop tuaj yeem siv rau hauv qhov nrawm, tsis siv computer zoo li neeg hlau. Daim ntawv thov yooj yim yog tus neeg hlau uas txav mus rau tom ntej thiab rov qab txhua lub sijhawm nws tsoo cov khoom.

Uas tau hais tias, lub voj voog ntawm lub flip-flop siv lub 555 timer tau qhia hauv qab no.

Kauj Ruam 1: YUAV UA LI CAS YUAV UA LI CAS

Tau qhov twg los:-https://www.electronicshub.org/wp-content/uploads/2015/06/Flip-flop-to-control-LED.jpg

Thaum cov zis ntawm tus pin 3 siab, tus capacitor C tsub los ntawm tus tiv thaiv R1 rau tus nqi siab piv txwv li VCC. Thaum cov zis ntawm tus pin 3 qis, lub tshuab hluav taws xob tawm los ntawm tib lub resistor rau 0. Txhawm rau hloov qhov tso tawm los ntawm siab mus rau qis lossis qis mus rau siab, hloov pauv tau siv ntawm qhov kev sib txuas ntawm qhov ua rau thiab tus lej pib.

Qhov faib hluav taws xob tsim los ntawm cov resistors R2 thiab R3 yuav muab qhov hluav taws xob ntawm VCC / 2 ntawm tus pin 6 thiab 2. Thaum hloov pauv raug nias, qhov hluav taws xob no raug cuam tshuam thiab ua rau sab hauv flip-flop. Qhov no yuav tso cai rau cov zis hloov pauv ntawm ob lub xeev.

Kauj Ruam 2: QHIA QHOV TSEEB

Daim ntawv teev npe

1 x 555 timer IC

2 x BC547 transistor

2 x 10k resistor

2x1k tiv

1 x 220k resistor

1 x 220 nf kab

1 x 5-volt relay

1 x diode 1n4007

Kauj Ruam 3: CIRCUIT DIAGRAM

Ib lub voj voog uas ua raws li toggle flip-flop tau qhia hauv qab no. Nws yog siv los teeb lub teeb LED thiab LED hloov ntawm ON thiab OFF thaum hloov pauv raug nias.

Yog li, raws li kuv tab tom siv IR Sensor Module nws muab tus nqi siab lossis qis tab sis kuv xav tau txuas ob tus pin zoo li hloov pauv, yog li kuv txiav txim siab siv yooj yim bc547 (Q1) transistor ua qhov hloov pauv raws li qhia hauv daim duab qhia kab hauv qab no. Nws tsuas yog ua haujlwm tau zoo hauv kuv qhov Circuit raws li qhov hluav taws xob siab siv rau lub hauv paus ntawm transistor, lub hnub qub tam sim no ntws los ntawm tus neeg sau mus rau lub hauv paus ua tus coj