iDuino MPGuino - Page 2 - Fuel Economy, Hypermiling, EcoModding News and Forum

Axaday · 08-09-2008, 01:40 AM

I just noticed that since I ordered the iDuino computer I need more parts. So I clicked over here for specifics. I see that you suggest a 470 uf capacitor instead of 330 uf. If I'm going to Radio Shack tomorrow for as much as I can find, should I go ahead for 330?

Also, the tactile switches I got were chrome toggles, but now that I look at the wiring diagram I see them called "buttons" there. Are what I got going to work or do I need to get something that doesn't have a hard 2-way?

dcb · 08-09-2008, 01:50 AM

The 470 is probably fine, I havent crunched the numbers but if you power it from your battery (it was designed to be powered from the battery and not intermittent power) the diode will probably survive the additional current.

You will have much difficulty navigating the menus with toggle switches for buttons

the shack should have a couple smd tactile switches that can be made to work by soldering leads to them or whatever.

XyKo · 08-10-2008, 01:07 AM

Just when I was about to place an order for all the parts, Fundamental Logic have to changed their shipping price. 4 days ago, it was around $3 ship. Now it's $16 for fedex ground. And that's the cheapest shipping price. Almost the price of my entire order, and I know that these parts shouldn't weigh more than 1 lb.

dcb · 08-10-2008, 03:30 AM

Damnit, that sucks. Kevin? Is your shipping calculator on the fritz? I just ordered a month ago and it was less than $3 for shipping and now it is reporting that it is over $16?

KJSatz · 08-10-2008, 01:25 PM

I just added those items to my cart, and first class mail to Missouri would be $2.27 shipping.

XyKo · 08-10-2008, 11:20 PM

It's showing the correct shipping options now.

wyatt · 08-11-2008, 12:16 AM

Quote:

Originally Posted by wyatt

I got all my parts from Kevin in the mail, so I am hoping to put together my MPGuino by this weekend.

So the weekend comes and goes... I breadboarded it and got stuff lined up for my car (not installed). I got some prepunched perfboard, and I found that I can't solder as well without the metal to tie to... it really makes all the difference as far as me being a novice is concerned. I will be picking up the perfboard that is setup with the stringers like on a breadboard tomorrow so I can get this all pulled together. I am really anxious to get this up and running in my car!

Axaday · 08-12-2008, 11:55 AM

Okay, I just got what I could at RadioShack since it is close to my house, but it left me with a question. I see that I can't get the solderable breadboard at the online store recommended above. I saw a lot of breadboard at RadioShack, but I didn't know how big of one I need and I also didn't know for sure what made one solderable and none of them said. All I've ever soldered was repairs of circuits, so having never scratchbuilt anything, I don't know anything about breadboard.

starquestPilot · 08-12-2008, 12:36 PM

Quote:

Originally Posted by Axaday

Okay, I just got what I could at RadioShack since it is close to my house, but it left me with a question...

Maybe something like: Model 276-150 or 276-148 or 276-168 or 276-149A?

Axaday · 08-12-2008, 12:45 PM

Also...I bought a 470 uf 35V Capacitor because it was the only voltage they had and I was thinking that going OVER 25 didn't matter. But then I wasn't so sure. Is it okay or do I need to order a 25V?

starquestPilot · 08-12-2008, 03:30 PM

Quote:

Originally Posted by Axaday

...Is it okay or do I need to order a 25V?

You should be OK with a 35v rated cap...

wyatt · 08-12-2008, 07:23 PM

Quote:

Originally Posted by starquestPilot

You should be OK with a 35v rated cap...

The reason for the 470/25v was because Kevin had one on hand when I was placing my order... he didn't know if we should go under 15v (or there abouts) because of the voltage of the battery

wyatt · 08-14-2008, 12:07 AM

I have a long weekend coming up... unfortunately not to work on pet projects, but to travel back home where there will be NO working on pet projects. It looks like the iGuino will have to be hooked up after I get back... kind of sad... expecially since I will be using a whole tank this weekend... I will get over it.

Axaday · 08-14-2008, 02:01 PM

Quote:

Originally Posted by starquestPilot

Maybe something like: Model 276-150 or 276-148 or 276-168 or 276-149A?

How big does it need to be?

cmags · 08-19-2008, 04:34 PM

As suggested earlier, this one should be big enough:

RadioShack.com - Cables, Parts & Connectors: Component parts: Breadboards & IC sockets: Multipurpose PC Board with 417 Holes

Anything larger and you can always cut the board down to size (and have leftover board for other projects). I'm fitting my additional circuitry all in the same footprint as the iDuino and stuffing it in the RatShack 4x2x1 box like show in the Workspace thread. The first post in this thread has pictures with the size of board and layout if you want to follow them exactly.

What makes a breadboard (easily) solderable is the copper traces around all the holes on the bottom side. Solder sticks to these and the component. If you get the ones with multiple holes connected, you don't have to worry about trying to bridge the solder from one trace to another, but you're limited in your layout freedom. I recommend getting a larger board than you think is necessary (maybe twice as large), and use a corner to practice your soldering techniques. Then you can build the circuit in the other corner and cut it to size. A small coping saw or band saw work great on these boards.

wyatt · 08-19-2008, 05:04 PM

Quote:

Originally Posted by cmags

What makes a breadboard (easily) solderable is the copper traces around all the holes on the bottom side.

I will echo that one! I can't do the soldering without something for it to stick to. Mine is constructed, and I used this board (the fourth picture on the first post). My board is sized to the LCD, not to the iDuino, but that really shouldn't make a big difference.

slogfilet · 08-19-2008, 09:08 PM

Is the pinout on an RBBB the same as the iDuino?

cmags · 08-20-2008, 02:10 PM

Quote:

Originally Posted by slogfilet

Is the pinout on an RBBB the same as the iDuino?

Doesn't seem so, especially on the bottom row:

XyKo · 08-22-2008, 01:29 AM

How long does it takes for fund-logic package to arrive via first class? Was hoping to see it here after returning from a 4 days trip. Package was shipped out on the 14th to Boston, Ma.

wyatt · 08-22-2008, 11:07 AM

Quote:

Originally Posted by XyKo

How long does it takes for fund-logic package to arrive via first class?

I went with the cheapest shipping option, and I seem to remember it took just under 2 weeks (not positive). Remember, you are placing an "international" order, it comes all the way from Canada!