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Homebrew Gear Indicator
#348056 08/05/2009 8:09 PM
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Bill Offline OP
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This is a follow-on to the work I was doing mounting a computer on the America. http://www.bonnevilleamerica.com/forums/...true#Post396380 I have it interfaced to the bike just fine and I can do all kinds of neat tricks - RPM, battery voltage etc. but I've been struggling with displaying the info. I had an LCD mounted in the console but I didn't like giving up the tach and it's not clear how I would make it waterproof. I've tried a couple of things that I thought somebody might get a kick out of.

The first is using a bicycle speedometer as a display. (this is the bike in 3rd gear by the way, the speed is just a coincidence).
.
The bike speedos don't want to show very small numbers like 1,2,3 etc so I tried 10, 20, 30 etc. mph. It's easy to read but the extra digits are distracting and the speedo itself is kind of tatty looking. On the plus side there's a clock and you can use the speedo to display other data - I had it doing RPMs and battery voltage when the bike was stopped.

My latest try is a little strip of LEDS mounted between the risers.

I always liked the idea of doing this for idiot lights so I tried it for the gears. My mockup is a bit crude but I think I've seen enough to know I'm not keen. It looks a bit better dropped below the bars and maybe it it was real shiny...

So neither of these is out of the running but I'm still looking for other ideas. Next I'm going to try out a small cellphone LCD where I can display an image of a digit from a mechanical counter like this for the gear and other info when I want it.


Oh, by the way, I may never have a really workable setup but it's been fun and I quite like having the extra data.

Re: Homebrew Gear Indicator
Bill #348057 08/06/2009 1:23 AM
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Bill... ? What the heck are you talking about? Ya lost me when you started using words like 'interface' and you mentioned something about cellphone LCDs. I think this is a case of Geezer meets Geek. Tell me my fine feathered Canuk, can that thing check the oil for me 'cause I'm findin' it hard to get back up from kneeling down to check the sight glass. Oh for Gawd's sake... put that talent to some good use will ya laddy!!


Live to love, love to live.
Re: Homebrew Gear Indicator
Keith #348058 08/06/2009 5:31 AM
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Whoa down Bill!! Sounds like you should be flying a F14 Fighter Jet. Dont you just love actually feeling the bike as you ride without watching the gauges? Thats probably one of the best buzzes i get; feeling the revs, listening to the sound & becoming one with the machine..

Re: Homebrew Gear Indicator
Bill #348059 08/06/2009 6:46 AM
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Quote:



My latest try is a little strip of LEDS mounted between the risers.

I always liked the idea of doing this for idiot lights so I tried it for the gears. My mockup is a bit crude but I think I've seen enough to know I'm not keen. It looks a bit better dropped below the bars and maybe it it was real shiny...






I like the LED bar Bill, only vertical. Maybe beside the Speedo.

Clay

What signals are you using, and how are you doing the math? Are you using a programmable chip or an existing device like the bicycle speedo?

Pretty cool.


01010100 01110010 01101001 01110101 01101101 01110000 01101000 <3
Re: Homebrew Gear Indicator
Ade #348060 08/06/2009 7:46 AM
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Bill Offline OP
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Quote:

Whoa down Bill!! Sounds like you should be flying a F14 Fighter Jet. Dont you just love actually feeling the bike as you ride without watching the gauges?




Sure, the sound and feel of the engine at 6K in second gear is thrilling. But I have no particular reason to ride without watching the gauges - I do sometimes close my eyes for a few seconds to enjoy the feel but that's a different story (kidding).

Re: Homebrew Gear Indicator
Bill #348061 08/06/2009 9:30 AM
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I'd be up for a simple gear indicator. Most times I have no problem remembering what gear I'm in, but there are times, around town, when I lose track. Would be nice to check with just a quick glance. So far, I like the light strip the best.


Jim F Salisbury NC/York SC "Are you a Mod or a Rocker?" "No, I'm a Mocker!"
Re: Homebrew Gear Indicator
Keith #348062 08/06/2009 10:40 AM
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Quote:

Ya lost me when you started using words like 'interface'




Its the fleshy material between your skull and your face skin


2004 Triumph Speedmaster (J Lo) 2006 Yamaha Stratoliner (Adele)
Re: Homebrew Gear Indicator
pipedr #348063 08/06/2009 11:17 AM
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Bill Offline OP
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Quote:

I like the LED bar Bill, only vertical. Maybe beside the Speedo.

Clay

What signals are you using, and how are you doing the math? Are you using a programmable chip or an existing device like the bicycle speedo?





Thanks, maybe vertical, I have a few other things to try. It really needs to be an instantaneous read or it's just a distraction.

The computer sees the speed from a wheel sensor, the tach pulses, and the neutral light voltage. The math boils down to engine rpm divided by wheel rpm.

You can buy a commercial gear indicator for under $100 now and i'm sure they work fine - this is just my idea of fun. And besides, it keeps RAINING!

Re: Homebrew Gear Indicator
Bill #348064 08/06/2009 4:48 PM
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I'd like a gear indicator for the America!
My GS Suzuki has one, and I like it.
When you ride several different bikes, all the time, you never really get it down. The H1 & H2 are five up shifting. When your downshifting comming to a stop, you always loose track and find yourself in neutral. With the HD's & the Yamahas having six speeds, I'm constantly "checking" to see if I'm in high gear.
Thank heavens I don't have any right side shifters!
Anyway, keep up the R&D, I'll be interested if you come up with an inconspicuous location.


And you may see me tonight With an illegal smile J. Prine
Re: Homebrew Gear Indicator
Bill #348065 08/06/2009 4:54 PM
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Bill,

I like the led strip between the handle bar clamps...
any idea of a cost / price?


TrOjAn
Re: Homebrew Gear Indicator
TrOjAn #348066 08/06/2009 6:31 PM
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Bill Offline OP
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Quote:

Bill,

I like the led strip between the handle bar clamps...
any idea of a cost / price?




I know the commercial ones are down below $100. They are usually a single digit LED jobbies like the one below. I could probably reproduce mine for $20 in parts but it's just not suitable for wide distribution. If anyone with some fabrication skills wants to get involved with the display (for example the LED strip or a waterproof LCD) I'd be happy to trade off a computer module for it - the risk to your igniter is all yours!

Re: Homebrew Gear Indicator
Bill #348067 08/07/2009 10:35 AM
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I was confused by this topic. I thought that it would be a device telling when I needed to stop riding and have a home brew. Or possibly when I should not ride because of having the homebrews.
But what you built is interesting also.


05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter

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