555 Timer Monstable Circuit!
by Jacks how2s in Circuits > Electronics
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555 Timer Monstable Circuit!
![IMG_1585.JPG](/proxy/?url=https://content.instructables.com/FMY/XBP9/IYOQANWF/FMYXBP9IYOQANWF.jpg&filename=IMG_1585.JPG)
![555 Timer Monstable Circuit Easy](/proxy/?url=https://content.instructables.com/FRI/O46G/IYOQ82Q1/FRIO46GIYOQ82Q1.jpg&filename=555 Timer Monstable Circuit Easy)
How To Make A 555 Timer Monstable Circuit
What You Need
555 Timer
2x 10k ohm Resistors
1x 470k ohm Resistor
LED
1x 220UF Capacitor
Breadboard
Jumper Wires
9 Volt Battery
9 Volt Clip
The Build
![555-timer-monostable-circuit.png](/proxy/?url=https://content.instructables.com/FUI/RX8N/IYOQAP7M/FUIRX8NIYOQAP7M.png&filename=555-timer-monostable-circuit.png)
![IMG_1580.JPG](/proxy/?url=https://content.instructables.com/FRT/RTZA/IYOQAN2S/FRTRTZAIYOQAN2S.jpg&filename=IMG_1580.JPG)
Start by placing the 555 timer ic into the breadboard.
Resistors and Capacitor
![IMG_1581.JPG](/proxy/?url=https://content.instructables.com/FT8/F239/IYOQANBL/FT8F239IYOQANBL.jpg&filename=IMG_1581.JPG)
Now add the resistors to pin 2 and positive and pin 7 and positive and the capacitor to pin 6 and GND.
The LED
![IMG_1582.JPG](/proxy/?url=https://content.instructables.com/FEQ/MJKV/IYOQANFZ/FEQMJKVIYOQANFZ.jpg&filename=IMG_1582.JPG)
Next add the resistor to pin 3 and the positive of the led to the resistor and the negative to gnd of the board.
Jumper Wires
![IMG_1583.JPG](/proxy/?url=https://content.instructables.com/FKK/HEDF/IYOQANNW/FKKHEDFIYOQANNW.jpg&filename=IMG_1583.JPG)
Connect wires in this order-
Pin 1 to GND
Pin 4 to Positive
Pin 6 to Pin 7
Pin 8 to Positive
The Switch
![IMG_1584.JPG](/proxy/?url=https://content.instructables.com/FF5/KVUM/IYOQANSI/FF5KVUMIYOQANSI.jpg&filename=IMG_1584.JPG)
Lastly add switch and connect a wire from pin 2 to one side and a wire from GND to the other pin.
Finished
![IMG_1585.JPG](/proxy/?url=https://content.instructables.com/F7N/NOB5/IYOQAUOJ/F7NNOB5IYOQAUOJ.jpg&filename=IMG_1585.JPG)
Now hook up the battery to the board and press the button!
The LED should stay on for a short period of time then turn off!
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