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Old 01-22-2013, 08:51 PM   #1 (permalink)
93 Geo Metro
 
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Sippy - '93 Geo Metro Convertible
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Looking to buy a programmer for MPGuino with Atmega 328p

I am an extreme novice to this. I just purchased a new prebuild MPGuino and installed it in my Metro. I would like to work on the code a bit but need some hardware.

I found a "real" Arduino Uno R3 on Amazon for $25
I also found a fake Arduino Uno on Amazon for $15

$10 would be a nice savings for me because I am a cheap ass and I will probably fail miserably so I don't want to waste much money.

Any suggestions for software or links for cheap programming hardware?


FWIW, I think my goal will be to create a single screen with a large readout of Current and Instant MPG. I'm not sure if anyone has done this yet or not. Also, I would like to remove the ability to change the contrast which I constantly do by mistake for some reason.

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1993 Geo Metro - "Sippy"
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http://www.lightweightmiata.com/geo/
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Old 01-22-2013, 09:43 PM   #2 (permalink)
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Why not buy the micro controller and simply swap the micro controller into the arduino?
You don't need to buy a new arduino for every project.
http://www.instructables.com/id/The-...Teach-You-in-/
As for programming:
http://hackaday.com/2010/10/25/avr-p...-the-hardware/
I'm working on building a MPGunio clone that ditches everything unneeded to give fuel consumption readout, target cost is $10 and an hour to assemble and install.
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Old 01-22-2013, 10:04 PM   #3 (permalink)
93 Geo Metro
 
Join Date: May 2008
Location: Charleston, SC
Posts: 14

Sippy - '93 Geo Metro Convertible
90 day: 43.8 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
Sorry, the links and message were over my head. I can probably figure out hooking a $15 board to my computer via USB, loading some drivers, pulling the chip out of my MPGuino and running some software to access the code. Spending a few hours reasearching/building a programmer and troubleshooting it to save $12 isn't my idea of fun. I appreciate the help though...

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1993 Geo Metro - "Sippy"
Economy cam, +10 cam gear, 3.85:1 ratio
http://www.lightweightmiata.com/geo/
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