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Get 4 Leds to blink

Started by Magnum, November 11, 2010, 04:55:23 PM

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Magnum

I have a flashlight that I would like to change what it does.

I want the blinking LED circuit(one bulb) to be used to run the 4 LEDS
that are used for the "flashlight".

In other words, I would like the 4 LEDS to blink.

I don't care if the blinking LED is no longer available.

Here is the circuit.



              [LED1]
        [R1] 
   
    [LED4]  [BlinkingLED5]  [LED2]


        [R2]   [LED3]

Notes:
       LED5 emits red light
       [R1] = 20 ohms
       [R2] = 10 ohms
       + to one lead of all LEDS

Resistor     = ---[R]---   
LED          = ---[LED]---
Bulb         = ---[Bulb]---
Blinking LED = ---[BlinkingLED]---
Battery      = ---[+Batt]---
Have a great day,
                         Andy

Magnum

In making this, I realized that the blinking LED is not controlled by a circuit.
It blinks when voltage is applied to it.

It looks like I would have to replace the 4 "regular" LEDs with the
"blinking" type or a circuit to make those blink.

Battery voltage is 4.5 Volts D.C.

It has an on/off switch, one side of switch turns on 4 Leds which
serve as a flashlight, the other side of switch turns on the blinking
RED Led.
Have a great day,
                         Andy

dedndave

you may be able to place the blinking one in series with the others   :P