5 More Breadboard Projects For Beginners: Project 1- Firefly | DIY How To Make Instructions

Complete article with details: www.instructables.com/id/Lets-...
BreadBoard Layout: cdn.instructables.com/F3K/LTL...
Schematic: cdn.instructables.com/FS7/D2F...
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'How to' video on Project 1- Firefly. Version 2 of the BreadBoard Projects For Beginners Series (with 5 projects).
Link to Version 1 (with 10 projects): www.instructables.com/id/Ten-Breadboard-Projects-For-Beginners/
Other 4 projects are:
#2 Alternate Flashing LED Lights
#3 MultiColor LED Lights (w/ an RGB LED)
#4 Traffic Lights
#5 Fastest Finger First (Game)
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The very first breadboard project presents you an LED that glows after every fixed amount of time (like fireflies do). The connections are quite easy, provided you know the pin configuration of the IC used- The 555 timer. So this is an 8 pin Integrated Circuit used for timer, pulse generation and oscillator applications. In this project, it is acting has an astable multi-vibrator, producing pulses that depend on the values of capacitors and resistors connected in the circuit. The output stays high for a time based on the 1M resistor plus the 22K resistor as the capacitor charges, then goes low for a short time based on the 22K resistor discharging the capacitor. Of course, the blinking frequency can be varied, by changing the 10uF capacitor value from 4.7uF to 100uF.
I will not give in-depth explanation to the workings of the circuit, as you may learn more after attempting all the projects and referring different articles and blogs all over the internet.
Connect everything as per the BreadBoard layout given above. You can also refer the schematic diagram if it doesn't work in first attempt. Use proper jumper wires for good electrical contact. After connecting everything, connect an appropriate power supply. The LED would now glow every 5-6 seconds. Try changing the values of the 1M/22K Resistors and the 10uF Capacitor, now see the change in the delay.
Difficulty: Easy
Parts Used:
1x NE555 IC
1x LED (any color)
1x 10uF Capacitor
1x 1M ohm Resistor
1x 100 ohm Resistor
1x 22K ohm Resistor
Circuit Source: www.instructables.com/id/The-5...
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Thanks for watching! :)

[@Pyonangx]

What is the problem for this circuit?

[@user-ix4iz9lt4l]

Bro my led is glowing but it is not blinking whyy??
Pls replay🙏

[@pangopinathan]

Very nice project.

[@SaiyamAgrawal]

Thanks

[@udaydeore-vr1im]

i creat this circuit in multisim but light can't blink .
light glow continue

[@udaydeore-vr1im]

help plzee reply

[@Blazie.1]

Same problem

[@fododude]

100 ohm or 470 ohm? You can't have both.

[@SaiyamAgrawal]

The circuit is for 9v power supply hence I have shown 470ohm. But when I made the circuit I used a 5v power supply so I used 100ohm instead of 470ohm.