Homegrown digital dash

[nowhere.elysium]

[Charlie]

[nowhere.elysium]

Augh. The program that I've used to generate the PCB so far is crap, and I can't make any sense of the parts bin in Eagle - there's just too many, and the descriptions that go with them make very little sense.

What I'll do is knock up a double-sided design, since I've already got a single-sided one sorted, and get the exported results from that. The program I'm using spits out a group of PDF files, which I should be able to send over to you.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[nowhere.elysium]

OK, here's an updated (and almost finalised) version of the board. The only thing remaining is to label everything properly, and place some kind of multiplexer on there for the idiot lights.

Does anyone have any suggestions as to which one to use? I'd prefer something DIL-shaped, just because it's what I've already been working with, and it's less of a pain to solder in place. I've got four analogue pins left at my disposal, although they'll all function as digital pins if needs be.

https://farm8.staticflickr.com/7220/7371883908_6e3fb476b1_z.jpg

:edit:

Here's the (hopefully) final layout, unless someone wishes to improve upon it for me.
https://farm9.staticflickr.com/8161/7372716374_f29ffff4f4_z.jpg

This includes a multiplexer, to accommodate the idiot lights (although I'll have to incorporate extra code to interpret what's incoming). It also has header pins for the coolant thermistor, and the speedometer hall effect sensor.

However, now that I've uploaded this, I see that I've still forgotten the bloody decoupling capacitors. Balls.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[nowhere.elysium]

Tiny update: I've just found out that the graphics library I was using has been subject to a massive overhaul; this includes significantly improved font support, which means that I can stop using bitmaps for the larger speedo numbers. Hurrah!

That's all, for now. I'll be off work next week, so should (with luck/motivation) be able to carry on with this, and hopefully knock most of it on the head.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[Charlie]

Could you not tidy up the bottom left hand corner. Line up the passive components and get rid of that diagonal track. Also have you considered the track widths for how much power they are carrying? Hazard a guess it isn't an issue in this project but just for reference.

Feel your pain for finding components in Eagle, total pain in the arse, but once you learn how to find stuff it becomes easier than making your own components.

Shame you can't use SMD stuff as you'd be able to get the design tiny!
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Past: Honda x8rs, Honda City fly, Honda Hornet 250, Honda VFR750, Yamaha xt600e.
Current: Honda CBR929RR & Yamaha XT660Z Tenere

[nowhere.elysium]

[orac]

try design spark, it can use eagle libraries from wht i understnad, can auto place as well as manual place auot route along with full manual, took me an hour to learn how to use it so sholdn't take you long

https://www.picaxe.com/Software/Third-Party/DesignSpark-PCB/
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Current rides - 2016 Triumph Street Triple Rx, 1994 Suzuki Bandit 400 VM, TGB 204 Classic 125cc
"with nothing left to lose, there is everything to gain. It's not the size of the dog in the fight, it's the size of the fight in the dog"

[Timmeh]

[nowhere.elysium]

Yeah, this is the point where it's made clear that I genuinely have no idea what I'm doing with the electronics
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[J.M.]

[MarJay]

https://images1.wikia.nocookie.net/__cb20090317165118/uncyclopedia/images/d/d6/MOAR.jpg
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[nowhere.elysium]

[The Shaggy D.A.]

[carvell]

It doesn't look like XTAL2 has capacitors to ground - is this intended? Usually you'd stick a couple of capacitors to ground if they are being used as an oscillator, around 15-20pf. Looks like you have some on the other crystal but they're not grounded. Did you do a schematic in eagle before doing the PCB? If so then you can be sure that you'll never make a mistake like that, because it checks the PCB against the schematic.

Also, consider surface mount components next time. Much less faff - I haven't used through-hole components for anything for years and years. They're harder to solder, but that's just a matter of getting better at soldering. Surface mount components are cheaper, you can make smaller circuits, and you don't have to drill holes.

This doesn't help you now, but you'll find it easier to debug the board if the tracks and layout are a little more ordered, without so many different angles on the tracks.
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Yamaha TDM 850

[nowhere.elysium]

[nowhere.elysium]

Heh. Have a teaser shot:
https://farm9.staticflickr.com/8287/7644996802_8e69969636_z.jpg


Next week will be full of interesting build photos.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[U_W v2.0]

hey, i know we dont often see eye to eye, but i have worked in eagle for approx 400 hours. so if you need any help using the software drop me a pm with what you need the help with. That said im not an expert in the software. but will defo try to help.

really looking forward to seeing how your new toy works out though and how the unit progresses.
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BCF's biggest cunt list: Cansa, Pits, Rob

[kotachi]

Now shake hands....



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CBT done - 24/03/2012, theory test done - 03/04/2012.. Mod 1 done -26/06/2012, Mod 2 done - 29/06/2012. Current steed: Cage.
Suntan Sid said: "Look at it this way, your employer wants to pay you the minimum amount, it thinks it can get away with, and extract from you the maximum amount of graft. Ergo it's your responsibility to ensure that karma is restored and you do as little work as you think you can get away with, for the maximum amount of money."

[Aff]

[nowhere.elysium]

[U_W v2.0]

[nowhere.elysium]

Boom!

That is all.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[nowhere.elysium]

What's this? Progress?


Surely not.

https://farm8.staticflickr.com/7113/7814366550_b87d692d0f_z.jpg

Came out a bit of a misprint, this one - it warped on the heated bed, because I've not got the RepRap in an enclosed environment at the moment. However, it's still pretty damned close, and good enough for a first run of an item I designed before I even had the printer
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project

[nowhere.elysium]

Right. I'm back on the software design for this at the moment, thanks to the libraries being rendered obsolete by the authors some time back.

There's now support for varying contrast, as well as (I think) some rudimentary grayscale handling, so there's a high chance that I can get the display to look properly bling. I'll be experimenting with it over the next few weeks, and will hopefully have something to show for my efforts soon.

I'll be stripping out the useful bits from the old code, but since the graphics library is pretty much core to the whole thing, we're talking about a ground-up rebuild. I'm also going to re-evaluate the PCB designs that I did, largely because they were piss poor, and I've learned a bit since then.
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'10 SV650SF, '83 GS650GT (it lives!), Questionable DIY dash project, 3D Printer project, Lasercutter project