BradLTL
BradLTL GRM+ Memberand HalfDork
3/1/12 12:34 p.m.

I really want to get one of these little things to play with. I think it would make an awesome CarPC, but aside from media, what to do with it?

http://www.raspberrypi.org/

You guys are clever, what would you do?

93EXCivic
93EXCivic SuperDork
3/1/12 12:36 p.m.

Is it more or less like a Adruino?

ReverendDexter
ReverendDexter SuperDork
3/1/12 12:38 p.m.
93EXCivic wrote: Is it more or less like a Adruino?

Nope.

Raspberry Pi is a full fledged low-spec general purpose computer. Runs a 700MHz ARM processor with 256Megs of ram, has a separate GPU with HDMI output, and uses SD cards as a hard drive.

More info here.

Grtechguy
Grtechguy SuperDork
3/1/12 12:40 p.m.

$25 for the Pi. How much for a 4-5" Touch input LCD?

alfadriver
alfadriver SuperDork
3/1/12 12:42 p.m.

I saw something similar a few years ago- thought it would make a killer DIY dash/data acq system. Should be able to run MS, right? And I mean the tuning software/data acq NOT the actual MS boards.

(although, with the right drivers, it should be more than capable of running an engine...)

jstein77
jstein77 Dork
3/1/12 12:44 p.m.

In reply to Grtechguy:

Wow, are you trying to say that you could make your own Ipad for $100?

Grtechguy
Grtechguy SuperDork
3/1/12 12:47 p.m.
jstein77 wrote: In reply to Grtechguy: Wow, are you trying to say that you could make your own Ipad for $100?

minus the cameras, accelerometer, gps chips, etc sure.....

Conquest351
Conquest351 Dork
3/1/12 1:51 p.m.

So you could use something like this and an LCD screen for a dash setup, just get all the inputs and software?

HStockSolo
HStockSolo Reader
3/1/12 2:15 p.m.

There have been <$100 ARM-based netbooks out there with keyboards and LSDs for a few years. Kmart has even been selling some. They are quite popular in China. They definitely have limitations.

I used to own this little touch screen ARM device that was originally released in 2003.

Giant Purple Snorklewacker
Giant Purple Snorklewacker SuperDork
3/1/12 2:22 p.m.
Conquest351 wrote: So you could use something like this and an LCD screen for a dash setup, just get all the inputs and software?

You can do anything with it. You can install linux on it and code away in the language of your choice.

You can also load your megasquirt java software up and tune from it.

I'd opt for the $35 version with 2 USB ports and ethernet to make it easier to integrate with (think bluetooth keyboard/mouse and usb wifi).

ReverendDexter
ReverendDexter SuperDork
3/1/12 2:28 p.m.
HStockSolo wrote: They definitely have limitations. I used to own this little touch screen ARM device that was originally released in 2003.

Methinks the limitation on that device had much more to do with the operating system than the hardware.

BradLTL
BradLTL GRM+ Memberand HalfDork
3/1/12 3:13 p.m.
Giant Purple Snorklewacker wrote: You can also load your megasquirt java software up and tune from it.

That could prove entertaining... save different tunes for different events? Street / Eco, Drag, AutoX

Or am I just dreaming?

ReverendDexter
ReverendDexter SuperDork
3/1/12 3:32 p.m.
BradLTL wrote: That could prove entertaining... save different tunes for different events? Street / Eco, Drag, AutoX Or am I just dreaming?

How would the tunes be different? My understanding is that a tune maximizes efficiency, which shows up as both power and economy.

slopecarver
slopecarver New Reader
3/1/12 3:40 p.m.

I'm thinking of other tunes, this with a Lilliput touchscreen and a proper media front end and you could have a nice little head unit. There is a guy out there with a pi running XBMC for a raspbMC video linky

RossD
RossD SuperDork
3/1/12 5:45 p.m.

I spent a lot of time looking at this website (link) and all the cool stuff that you could do with it. (It's Arduino type stuff)

92CelicaHalfTrac
92CelicaHalfTrac SuperDork
3/1/12 5:56 p.m.

Hrmmmm.... i'm thinking badass head unit feeding a USB audio output to a digital Class-T amp.

And running whatever tuning software on a touchscreen, possibly a keyboard/mouse input.

FlightService
FlightService SuperDork
3/1/12 6:27 p.m.

Yup DAS

DoctorBlade
DoctorBlade Dork
3/1/12 8:05 p.m.

I'm in for the CarPC deal. Give the low voltage requirements, it'd be much simpler to hook up. Now if they'd only be available here.

BradLTL
BradLTL GRM+ Memberand HalfDork
3/2/12 9:11 a.m.
ReverendDexter wrote:
BradLTL wrote: That could prove entertaining... save different tunes for different events? Street / Eco, Drag, AutoX Or am I just dreaming?
How would the tunes be different? My understanding is that a tune maximizes efficiency, which shows up as both power *and* economy.

At the risk of turning this into a engine tuning thread... (first let me acknowledge my ignorance on the subject)

I would think that your "normal" tune would provide the best balance and most stable running condition for the engine.

Whereas a drag tune would focus on HP, adjust ignition timing and may be calibrated for a different octane of gas; and an autox tune would be similar with focus on low end torque.

I suspect that depending on the car there may not be a lot of variance in these setups. I know companies like APR will offer several different maps for their ecu tuning.

alfadriver
alfadriver SuperDork
3/2/12 9:25 a.m.
BradLTL wrote:
ReverendDexter wrote:
BradLTL wrote: That could prove entertaining... save different tunes for different events? Street / Eco, Drag, AutoX Or am I just dreaming?
How would the tunes be different? My understanding is that a tune maximizes efficiency, which shows up as both power *and* economy.
At the risk of turning this into a engine tuning thread... (first let me acknowledge my ignorance on the subject) I would think that your "normal" tune would provide the best balance and most stable running condition for the engine. Whereas a drag tune would focus on HP, adjust ignition timing and may be calibrated for a different octane of gas; and an autox tune would be similar with focus on low end torque. I suspect that depending on the car there may not be a lot of variance in these setups. I know companies like APR will offer several different maps for their ecu tuning.

Outside of the adjustment for octane, there's really no difference in a good calibration. Good combustion is good combustion...

Twin_Cam
Twin_Cam SuperDork
3/2/12 10:24 a.m.

Uhh...err....umm...

What is that? I'm assuming some sort of small computer motherboard.

BradLTL
BradLTL GRM+ Memberand HalfDork
3/2/12 11:37 a.m.

It's an "entire" computer for $25-35. Uses an SD card for storage, can connect usb devices, ethernet, rca and hdmi. There are a lot of possibilities for use, just wondering about clever uses in a car.

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