Looking to build a led gas pedal. - Page 2 - Electronic Circuits Projects Diagrams Free

Mikebits · 7th August 2008, 10:29 AM

Quote:

Originally Posted by Stu2008uk

mine got a bit of uprating, the old 305 wasn't quick enough cant have kitt without a bit of speed, its running a 5.7 350 Pontiac block thats been uprated to 400 horsepower.
Do like the 95's they look very sleek and im looking into one as a daily driver.
Thanks for the assistance its most appreciated.

Stu

Mine has had some reliablity issues lately. Last visit to the mech cost me 5 grand as my coolent leaked into the heads. If I did not have a motorcycle I would be taking the bus a lot. lol

400 HP, wow that is sweet

Stu2008uk · 7th August 2008, 10:46 AM

ouch thats a nasty bill!
All the engine work was undertaken by myself cause i know what mechanics are like for bills lol!

Stu

Mikebits · 7th August 2008, 10:52 AM

Ok wait here, I got my cam, Let me show you mine

I am going to shoot a few pics.

Mikebits · 7th August 2008, 11:02 AM

Ok, here is mine...

Mikebits · 7th August 2008, 11:18 AM

Since you seem to have a gearhead background, can I assume you can fab parts from metal? This is only relevant to plan A, as I still see this as the simplest solution. I will send you a schematic soon of plan A. Plan B to come later.

Stu2008uk · 7th August 2008, 11:36 AM

They do like to cram those ls1's in there don't they!
Yes i should be able to fabricate some metal parts if needs be.
Ive a breadboard to test circuits on just need to get the correct components.

Stu

Mikebits · 7th August 2008, 11:40 AM

Quote:

They do like to cram those ls1's in there don't they!

Sure do. I use to be somewhat of a gearhead myself, but this car has humbled me

Well, I am off to bed for now... Talk to you later okiday

Stu2008uk · 7th August 2008, 11:45 AM

O.k. mike take care, you'll get the car sorted, anythings possible

Stu

jimmythefool · 7th August 2008, 11:56 AM

Hi Stu,
If you want to keep your LED Pedal design simple, how about using a couple of LM3914 LED Bargraph Drivers?? The voltage from a variable resistor swing from 0-5V , lights up 10 LED's exactly how you want..

jimmythefool · 7th August 2008, 04:10 PM

Also....
you can use it in 'Dot mode' with just 1 LED moving back and forth

Stu2008uk · 7th August 2008, 04:33 PM

any chance you could lay that out on a breadboard, think i do have a LM3914 in my kit of bits, I'm a novice when it comes to reading the diagrams though

ideally im looking to light up 14 leds per side.

cheers

Stu

Mikebits · 7th August 2008, 08:35 PM

Quote:

Originally Posted by jimmythefool

Hi Stu,
If you want to keep your LED Pedal design simple, how about using a couple of LM3914 LED Bargraph Drivers?? The voltage from a variable resistor swing from 0-5V , lights up 10 LED's exactly how you want..

That is exactly what I was thinking...

jimmythefool · 7th August 2008, 09:06 PM

Thanks Mike

I was beginning to think it was a bad idea!

Stu,
Have a look at this link, it might help. Unfortunately it only runs 10 LEDs, although you can cascade them to make 20
If pin 9 is not connected (default), it will be in Dot-Mode. Connect pin 9 to pin 3 (+ on power supply) for Bargraph
http://www.cpemma.co.uk/bargraph.html

Regards
Jim

Mikebits · 8th August 2008, 01:26 AM

Okay, as promised, here is a circuit I drew up. I may have made a few errors as nobody is perfect

I am sure if I did, it will be pointed out. Anyways, I attached the schematics and sorry, it took two pages to fit everything. The jumper block is to set between Dot mode and Bar mode. The nets with labels simply means tie those point together. Hope that helps...

Mikebits · 8th August 2008, 01:42 AM

Ack, I already spotted one error. Pin 9 of U2 should be U2mode. My printer is out so it is hard to catch everything from the monitor

I will correct the error later as well as check it over one more time...
Here is data sheet link for 3914
http://www.national.com/mpf/LM/LM3914.html

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7th August 2008, 10:46 AM	(permalink)
Stu2008uk	ouch thats a nasty bill! All the engine work was undertaken by myself cause i know what mechanics are like for bills lol! Stu

7th August 2008, 10:52 AM	(permalink)
Mikebits	Ok wait here, I got my cam, Let me show you mine I am going to shoot a few pics. __________________ Forget injuries, never forget kindnesses.

7th August 2008, 11:18 AM	(permalink)
Mikebits	Since you seem to have a gearhead background, can I assume you can fab parts from metal? This is only relevant to plan A, as I still see this as the simplest solution. I will send you a schematic soon of plan A. Plan B to come later. __________________ Forget injuries, never forget kindnesses.

7th August 2008, 11:36 AM	(permalink)
Stu2008uk	They do like to cram those ls1's in there don't they! Yes i should be able to fabricate some metal parts if needs be. Ive a breadboard to test circuits on just need to get the correct components. Stu

7th August 2008, 11:45 AM	(permalink)
Stu2008uk	O.k. mike take care, you'll get the car sorted, anythings possible Stu

7th August 2008, 11:56 AM	(permalink)
jimmythefool	Hi Stu, If you want to keep your LED Pedal design simple, how about using a couple of LM3914 LED Bargraph Drivers?? The voltage from a variable resistor swing from 0-5V , lights up 10 LED's exactly how you want..

7th August 2008, 04:10 PM	(permalink)
jimmythefool	Also.... you can use it in 'Dot mode' with just 1 LED moving back and forth

7th August 2008, 04:33 PM	(permalink)
Stu2008uk	any chance you could lay that out on a breadboard, think i do have a LM3914 in my kit of bits, I'm a novice when it comes to reading the diagrams though ideally im looking to light up 14 leds per side. cheers Stu Last edited by Stu2008uk; 7th August 2008 at 04:34 PM.

7th August 2008, 09:06 PM	(permalink)
jimmythefool	Thanks Mike I was beginning to think it was a bad idea! Stu, Have a look at this link, it might help. Unfortunately it only runs 10 LEDs, although you can cascade them to make 20 If pin 9 is not connected (default), it will be in Dot-Mode. Connect pin 9 to pin 3 (+ on power supply) for Bargraph http://www.cpemma.co.uk/bargraph.html Regards Jim Last edited by jimmythefool; 7th August 2008 at 09:14 PM.

8th August 2008, 01:42 AM	(permalink)
Mikebits	Ack, I already spotted one error. Pin 9 of U2 should be U2mode. My printer is out so it is hard to catch everything from the monitor I will correct the error later as well as check it over one more time... Here is data sheet link for 3914 http://www.national.com/mpf/LM/LM3914.html __________________ Forget injuries, never forget kindnesses.