Car Parking Helper Circuit
Car Parking Helper Circuit - Salam Electrical Engineer yang setia membaca artikel pada blog ini. Semoga tetap bersemangat untuk belajar dan terus belajar tentang elektronika.
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A simple but useful circuit to solve the problems with parking car, in spaces without good visibility. The electric circuit appears in picture 1.
It is constituted by the IC1 and components round he. When the car bumper touch soft and push lightly the switch S1 then of battery voltage + 9 V it is applied in the circuit, the transistor Q1 turn ON and the diodes D3-4 they blink.
After 4 seconds the capacitor C1 charging. The pin 9 of IC1c it goes in high potential, simultaneously the pin 10 goes in low potential and Q1 turn off and the diodes turn off and the circuit it remains in situation of waiting, until the next excitation of switch S1.
Parts List
- IC1=4093 R1 = 10Kohms 1/4W C2 = 100nF 100V MKT
- Q1=BC550 R2=1Mohms 1/4W J1=2pin Connector
- D1=1N4148 R3 = 4.7Kohms1/4W S1=sw normal open
- D2=Led 5mm Red normal or Flash R4 = 820ohms 1/4W 9V battery with clip
- D3=Led 5mm Red normal C1=4.7uF 25V [for ~4sec delay time]
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