Components
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NE 555 |
x 1 | |
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V18MLE0603A Varistor |
x 1 | |
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1 amp fuse |
x 1 | |
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transformer (coupling factor 1:1) |
x 1 | |
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7805 regulator |
x 1 | |
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1n4001 diode |
x 6 | |
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electrolytic capacitor 220uF |
x 1 | |
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electrolytic capacitor 100uF |
x 1 | |
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electrolytic capacitor 10uF |
x 1 | |
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ceramic capacitor 10000pF |
x 2 | |
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ceramic capacitor 3300pF |
x 1 | |
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11k ohm Resistor |
x 2 | |
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100 ohm Resistor |
x 1 | |
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10k Resistor |
x 1 | |
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Push button |
x 2 | |
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4n25 optocoupler |
x 1 | |
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OMI-SH-212L Relay |
x 1 | |
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2n3904 Transistor |
x 1 | |
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Buzzer |
x 1 | |
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500 ohm resistor |
x 1 | |
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Terminal blocks 2 pins |
x 3 | |
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Terminal blocks 4 pins |
x 1 |
Description
Open a door with a button remotely!
Designed to work with a 12V battery so if the light goes out you can still open the mechanism. It has a 5V power supply and when the button is pressed an NE555 timer sends a signal for 5 seconds to the optocoupler and relay to activate the solenoid and buzzer. In this way the dorr can remain unlocked for 5 seconds and the buzzer will let you know when it is activted.
May 22,2021
719 views
Open a door with a button remotely!
2 Layers PCB 101.6 x 76.2 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
Lock solenoid circuit to open a door (or any relay actuated mechanism) with a button.
719
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Published: May 22,2021
Download Gerber file 8
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