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anyone here knows how to make a simple fast blinking LED ?
how to make a simple fast blinking Led with specific materials and value of electronic components?
how to make a simple fast blinking Led with specific materials and value of electronic components?
Discussions
1 year ago
No IC needed blinker, dual or single...
Speed up by lowering the 22uF capacitors..
Answer 1 year ago
can u give me a list of it? and diagram? thank you
Answer 1 year ago
one red led
two 22 uF 16 volt electrolytic capacitors
two 100,000 ohm 1/4 watt resistors
two 1500 ohm 1/4 watt resistors
twoTO-92 NPN 2N3904 transistors
Any door bell momentary push button
A 9v battery
A 9v battery connector
Some 20 gauge bell hookup wire
This list can be supplied by DigiKey electronics
The diagram is the picture..
Answer 1 year ago
can i ask for something? why is it the emitter of the bjt transistor didnt connected to? is that means that the two emitter connected to the ground or negative side? sorry for asking this cause i dont have any idea of electronic circuit and symbols.thank you
Answer 1 year ago
thank you for the information iceng. it well help me a lot.
1 year ago
Try this:
http://houseofjeff.com/555-timer-oscillator-freque...
You can get the LM555 timer here.
https://ca.mouser.com/Electronic-Components/
the other parts Amazon, Banggood, or some other on line store.
In this circuit the smaller the 22 uF capacitor the faster it blinks.
Answer 1 year ago
+1
1 year ago
You know it would help:
if you said how fast - However as Josehf says a 555 will be able to take you beyond your ability to see the flash