How can i build that? (Flasher) - Electronic Circuits Projects Diagrams Free

HeX0R · 19th January 2008, 02:46 AM

HI im new her and i wont ask for help...

i want to build a flasher (like in the video) but i n00b in electronics and mine english very poor.

so if some one can please help i will be happy and thankful.

here is the video (youtube): http://www.youtube.com/watch?v=adqpnVcVtfs

it is a PIC???

Thank you all

audioguru · 19th January 2008, 03:49 PM

An oscillator can drive a CD4017 sequencer IC. Then a gate selects outputs 1 and 3 to blink one set of LEDs and another gate selects outputs 5 and 6 to blink the other set of LEDs. The LEDs are driven with transistors since their current is high. It is reset on count #8.

A CD4060 oscillator/binary counter can also be used with gates to select its outputs.

wmmullaney · 19th January 2008, 03:55 PM

A PIC should be easier????

on1aag · 19th January 2008, 05:31 PM

My best guess is an obligatory 555 and a 4017.
The two black squares on the right provide the muscle to drive
the leds and some other smaller stuff to make it look more
interesting.
I would go for a 4001 and a 4017 and two "old" P-channel mosfets
like IRF9530 or IRF9540.

on1aag.

weegee · 19th January 2008, 07:36 PM

this is what my circuit http://www.electro-tech-online.com/e...ew-needed.html

does, 3 of the dip switches are for setting the speed of flash, the 4th being to choose standard left/right flash, or left/left/right/right flash like in the video clip.

the reason i used relays is that i want my circuit to be universal, as i have been asked to do both main beam and led flashers, so i figured that if i do it like this, then you can flash anything you want.

HeX0R · 20th January 2008, 06:38 PM

thanks you guys...

But frend i cold not understend your diagram...
can you help me with that??

and i sew you put there a PIC so you can give me hes code???

THANKS YOU!!!

weegee · 20th January 2008, 08:12 PM

Hi

what bits are you struggling with?

The pic reads in the dip switches (the first 3) are a binary representation of the flash delay in 100ms intervals, and the 4th tells the pic what type of flash to do.

Operation:

Power for whatever is to be flashed is connected to J7, this could be either a live or earth, depending in the configuration of what you want to flash.

J4 is connected to the left hand light, J6 is connected to the right hand light.

J3 and J5 are provided so that you can connect the circuit 'in-line' with existing lights.

The pretext here is that if you wanted to flash your headlights you would snip the switched wire to the bulb, and connect the loom side to J3, and the bulb side to J4, same with J5 and J6 on the other side of the vehicle. J7 gets connected to whichever power source is switched on your vehicle, so if you have a switched live, then live connects to J7, if you have switched earth then earth gets connected to J7.

This configuration means that when the flasher is powered down, the lights will operate properly as is you hadn't connected the flash, when powered up, the circuit disables the factory circuit (to prevent backfeeding the lighting circuit), and pulses power from J7 to J4 and J6 alternativly.

For your purpose you could leave out the bottom 2 relays

Im still working on the code

HeX0R · 24th January 2008, 06:21 PM

Can i do the same effect but with a flashs (like in a camera??)
what his name ???

blueroomelectronics · 24th January 2008, 06:30 PM

Quote:

Originally Posted by HeX0R

Can i do the same effect but with a flashs (like in a camera??)
what his name ???

Stick with ultra bright LEDs. Lots more work to make a xenon flash.

on1aag · 25th January 2008, 01:18 AM

Hi HeXOR,

Like I said in my previous post, a CD4001, a CD4017 and a few old
dogs to drive the led's.
The circuit (?) was designed to be used with (blue) led's with a
forward voltage drop of 3,3 volt. You can connect as much groups
of six led's as you like and you can use (almost) any old P-channel
mosfet you can get your hands on like IRF9510 to IRF9513; IRF9520
to IRF9523; IRF9530 to IRF9533; IRF9620 to IRF9623; IRF9630 to
IRF9633, . . .

on1aag.

weegee · 25th January 2008, 02:49 AM

finished my flasher on breadboard - will post up a video clip tommorow. i dont have enough blue leds to do blue, so ive used some red 'marker' lights, but the circuit works exactly the same.

HeX0R · 25th January 2008, 02:08 PM

Thanks you guys...

weegee i hope to see yur video.

on1aag thanks you, the old P-channel is very expensive so i refer to not use that transistor.

i thont on what you said in your previous post
and i do this with 555 and 4017.

and this is what come: Attach

AND somthing more: my friend tel me that the LED IS not visible in day light.
only LED with 140 lomines (somthink like that) anh this LED very expensive .

so what can do for that situation?????

THANK A LOT YOU ALL

wmmullaney · 25th January 2008, 04:05 PM

Get some high brightness leds, my blue leds show up fine in daylight.

audioguru · 25th January 2008, 04:09 PM

I have a feeling that HeXOR is making a blinker that will change traffic lights.
When the cops see his blinker change the lights then he is in BIG trouble.

When his blinker changes the lights when a fire truck at the side also changes the lights then CRASH!

weegee · 25th January 2008, 05:45 PM

the video's i promised

l/r/l/r/l/r --> http://www.youtube.com/watch?v=7KOQP_yh5vs

ll/rr/ll/rr --> http://www.youtube.com/watch?v=KNAMrI7dp1M

i know its flashing a bit slow, but thats cause im using bulbs (they take time to go out), using leds you can easily replicate the one you posted in first post.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
Headlight Flasher	Kaleb	General Electronics Chat	3	19th April 2007 03:12 AM
Pickit 2 - Build or Not 2 Build	art-666	Micro Controllers	2	5th February 2007 11:40 PM
SMPS power suply modify or build plss	Raducu	General Electronics Chat	12	9th February 2006 12:52 AM
Need help to build firebot	anand_jain	Robotics Chat	7	22nd September 2004 01:48 PM
i want to build a circuit that has applications in agric.	needogg4life	Electronic Projects Design/Ideas/Reviews	0	3rd January 2004 12:36 PM

19th January 2008, 02:46 AM	(permalink)
HeX0R	How can i build that? (Flasher) HI im new her and i wont ask for help... i want to build a flasher (like in the video) but i n00b in electronics and mine english very poor. so if some one can please help i will be happy and thankful. here is the video (youtube): http://www.youtube.com/watch?v=adqpnVcVtfs it is a PIC??? Thank you all

19th January 2008, 03:49 PM	(permalink)
audioguru	An oscillator can drive a CD4017 sequencer IC. Then a gate selects outputs 1 and 3 to blink one set of LEDs and another gate selects outputs 5 and 6 to blink the other set of LEDs. The LEDs are driven with transistors since their current is high. It is reset on count #8. A CD4060 oscillator/binary counter can also be used with gates to select its outputs. __________________ Uncle $crooge

19th January 2008, 03:55 PM	(permalink)
wmmullaney	A PIC should be easier???? __________________ Regards, William Mullaney "HOPE for the best, EXPECT the worst, ACCEPT whatever comes." http://wiliamsville.myminicity.com/ http://wiliamsville.myminicity.com/ind/ http://wiliamsville.myminicity.com/tra/

19th January 2008, 05:31 PM	(permalink)
on1aag	Message in a bottle. My best guess is an obligatory 555 and a 4017. The two black squares on the right provide the muscle to drive the leds and some other smaller stuff to make it look more interesting. I would go for a 4001 and a 4017 and two "old" P-channel mosfets like IRF9530 or IRF9540. on1aag.

19th January 2008, 07:36 PM	(permalink)
weegee	this is what my circuit http://www.electro-tech-online.com/e...ew-needed.html does, 3 of the dip switches are for setting the speed of flash, the 4th being to choose standard left/right flash, or left/left/right/right flash like in the video clip. the reason i used relays is that i want my circuit to be universal, as i have been asked to do both main beam and led flashers, so i figured that if i do it like this, then you can flash anything you want.

20th January 2008, 06:38 PM	(permalink)
HeX0R	Thanks ... thanks you guys... But frend i cold not understend your diagram... can you help me with that?? and i sew you put there a PIC so you can give me hes code??? THANKS YOU!!!

20th January 2008, 08:12 PM	(permalink)
weegee	Hi what bits are you struggling with? The pic reads in the dip switches (the first 3) are a binary representation of the flash delay in 100ms intervals, and the 4th tells the pic what type of flash to do. Operation: Power for whatever is to be flashed is connected to J7, this could be either a live or earth, depending in the configuration of what you want to flash. J4 is connected to the left hand light, J6 is connected to the right hand light. J3 and J5 are provided so that you can connect the circuit 'in-line' with existing lights. The pretext here is that if you wanted to flash your headlights you would snip the switched wire to the bulb, and connect the loom side to J3, and the bulb side to J4, same with J5 and J6 on the other side of the vehicle. J7 gets connected to whichever power source is switched on your vehicle, so if you have a switched live, then live connects to J7, if you have switched earth then earth gets connected to J7. This configuration means that when the flasher is powered down, the lights will operate properly as is you hadn't connected the flash, when powered up, the circuit disables the factory circuit (to prevent backfeeding the lighting circuit), and pulses power from J7 to J4 and J6 alternativly. For your purpose you could leave out the bottom 2 relays Im still working on the code

24th January 2008, 06:21 PM	(permalink)
HeX0R	Can i do the same effect but with a flashs (like in a camera??) what his name ???

25th January 2008, 02:49 AM	(permalink)
weegee	finished my flasher on breadboard - will post up a video clip tommorow. i dont have enough blue leds to do blue, so ive used some red 'marker' lights, but the circuit works exactly the same.

25th January 2008, 04:05 PM	(permalink)
wmmullaney	Get some high brightness leds, my blue leds show up fine in daylight. __________________ Regards, William Mullaney "HOPE for the best, EXPECT the worst, ACCEPT whatever comes." http://wiliamsville.myminicity.com/ http://wiliamsville.myminicity.com/ind/ http://wiliamsville.myminicity.com/tra/

25th January 2008, 04:09 PM	(permalink)
audioguru	I have a feeling that HeXOR is making a blinker that will change traffic lights. When the cops see his blinker change the lights then he is in BIG trouble. When his blinker changes the lights when a fire truck at the side also changes the lights then CRASH! __________________ Uncle $crooge Last edited by audioguru; 25th January 2008 at 04:24 PM.

25th January 2008, 05:45 PM	(permalink)
weegee	the video's i promised l/r/l/r/l/r --> http://www.youtube.com/watch?v=7KOQP_yh5vs ll/rr/ll/rr --> http://www.youtube.com/watch?v=KNAMrI7dp1M i know its flashing a bit slow, but thats cause im using bulbs (they take time to go out), using leds you can easily replicate the one you posted in first post. Last edited by weegee; 25th January 2008 at 05:56 PM.