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by Wolfram23
Thu Aug 02, 2012 5:28 pm
Forum: Beginners
Topic: Re: Emulating Raspberry Pi in Windows the easy way
Replies: 151
Views: 143381

Re: Emulating Raspberry Pi in Windows the easy way

Great, thanks. I'll try this out. Haven't had near enough time on it yet. As far as installation goes, the wiki only seemed to have a guide on flashing an SD card rather than a straight download and install from the Pi itself. I'll figure it out eventually - I'm a Linux noob. Regardless, thanks for ...
by Wolfram23
Thu Aug 02, 2012 1:51 am
Forum: Beginners
Topic: Re: Emulating Raspberry Pi in Windows the easy way
Replies: 151
Views: 143381

Re: Emulating Raspberry Pi in Windows the easy way

Yes, that was the idea. I want to try several media players. EDIT: If I replace the img file (2012-07-15-wheezy-raspbian.img), is it just a straight replacement (as in, remove this file and insert new one), or is there some other config I need to change to point to the new one? Alternatively, can I ...
by Wolfram23
Mon Jul 30, 2012 6:42 pm
Forum: Media centres
Topic: XBian - Small, Fast, Lightweight XBMC solution
Replies: 612
Views: 226165

Re: XBian - Small, Fast, Lightweight XBMC solution

This sounds like it's probably a great build for a CarPC. Only, it needs a few addons :lol: This might be applicable to HTPC type applications as well, but has anyone got info on a bluetooth phone pairing for receiving calls and such using the Hands Free Profile? So far I have found a Linux library ...
by Wolfram23
Mon Jul 30, 2012 2:58 am
Forum: Other projects
Topic: Watercooled Raspberry PI
Replies: 37
Views: 12097

Re: Watercooled Raspberry PI

Desktop PCs are only watercooled to look neat and waste some money. A typical desktop CPU puts out upwards of 100W when overclocked (although I suppose current Ivy Bridge are lowering that number), and most of that is heat. So yeah sure you need pretty decent cooling whether it's a large active air ...
by Wolfram23
Sun Jul 29, 2012 3:57 am
Forum: Other projects
Topic: Watercooled Raspberry PI
Replies: 37
Views: 12097

Re: Watercooled Raspberry PI

Wat. That would be ridiculous. Yeah sure you can easily get some copper machined to build a block. Of course, the pump will add more heat than the pi :lol:
by Wolfram23
Fri Jul 27, 2012 8:41 pm
Forum: Other projects
Topic: CAN Interface
Replies: 103
Views: 101688

Re: CAN Interface

You better take a look at OpenStreetMap then. The maps are better then Google's in some parts of the world and they are 100% free. Software for navigation using Offline (pre-downloaded) maps can be found in the wiki: https://wiki.openstreetmap.org/wiki/Routing/OfflineRouters That's great! Thanks. I...
by Wolfram23
Fri Jul 27, 2012 8:13 pm
Forum: Other projects
Topic: CAN Interface
Replies: 103
Views: 101688

Re: CAN Interface

Hey guys, great thread. I'm looking to do a Carputer (CarPi) and definitely want OBDII interfacing. In my case, I just want to read from it - get things like MPG, IAT, timing advance, coolant temp, oil pressure, intake manifold pressure, etc. Firstly, while I like the effort in this thread, I wish i...
by Wolfram23
Fri Jul 27, 2012 6:27 pm
Forum: Troubleshooting
Topic: USB hub sending power to Raspberry PI through USB port
Replies: 17
Views: 7411

Re: USB hub sending power to Raspberry PI through USB port

Good solution, I was just thinking that. Don't need the red cable from the Pi to the USB Hub if the Hub is powered.
by Wolfram23
Fri Jul 27, 2012 3:58 pm
Forum: Beginners
Topic: How do I power this in the car?
Replies: 13
Views: 16860

Re: How do I power this in the car?

This isn't that hard, finally found a good schematic. The biggest problem with having it on the Ignition (switched) line is that it will cause hard shut downs, and ideally you want to let the RPi shut down naturally so your SD card doesn't get corrupted. Anyway, go to this page: http://www.obdsol.co...
by Wolfram23
Fri Jul 27, 2012 4:39 am
Forum: General discussion
Topic: Question about power protection in a Car
Replies: 6
Views: 1007

Re: Question about power protection in a Car

Found a great diagram. I'm getting an STN1110 for OBDII interfacing, and the datasheet actually has a circuit diagram for power protection. Only problem is, it doesn't say what size components to buy, so I guess it'll take a little more research, but at least I know what to look for! To check it out...
by Wolfram23
Thu Jul 26, 2012 10:32 pm
Forum: Other projects
Topic: Touchscreens for Raspberry Pi
Replies: 105
Views: 177040

Re: Touchscreens for Raspberry Pi

There's a capacitive multi touch panel available for a decent price. Little rich for my blood, but it could be really useful to some people. It's the Fusion displays, comes in 4" $105, 7" $174 and 10" $260 models.

7" model: http://www.digikey.ca/product-detail/en ... ND/3079229
by Wolfram23
Thu Jul 26, 2012 3:33 pm
Forum: General discussion
Topic: RasPi power usage measurements ALL Models
Replies: 156
Views: 275438

Re: RasPi power usage measurements ~2 watts at idle

Yeah it probably would be slower, but the main reason isn't to speed up shut down, but boot up. Then again, maybe the basic startup would be ok, I don't actually know yet. Ideally though I want the RPi to turn on and start playing music in less than 20 seconds.
by Wolfram23
Thu Jul 26, 2012 3:24 pm
Forum: General discussion
Topic: Question about power protection in a Car
Replies: 6
Views: 1007

Re: Question about power protection in a Car

Well looks like I can just wire up either a Transient Voltage Suppresor Diode or a Varistor. Or both lol. I gotta look into how to wire them up more, but that might be the way to go.
by Wolfram23
Thu Jul 26, 2012 3:20 pm
Forum: General discussion
Topic: RasPi power usage measurements ALL Models
Replies: 156
Views: 275438

Re: RasPi power usage measurements ~2 watts at idle

Well, the DC-DC buck chip I'm looking at has a low power mode based on whether one of it's inputs is high or low, so I think there might be a decent solution to my carPi issue, at any rate. Run the 12V ignition (switched) line to a buck chip to get 3.3V. Then connect it to: 1) GPIO pin that will aut...
by Wolfram23
Thu Jul 26, 2012 2:40 pm
Forum: General discussion
Topic: Question about power protection in a Car
Replies: 6
Views: 1007

Re: Question about power protection in a Car

Isolation transformer huh? I'll look into that, thanks. The reason I don't want to use a cigar plug thing is that I'll be plugging in many peripherals via USB, so I want enough amps that I can wire the power into a USB hub. The cost difference also won't be that much. A good Cigar USB adapter is aro...
by Wolfram23
Thu Jul 26, 2012 4:51 am
Forum: Beginners
Topic: Re: Emulating Raspberry Pi in Windows the easy way
Replies: 151
Views: 143381

Re: Emulating Raspberry Pi in Windows the easy way

I feel like an idiot but I don't even know how to install software like OpenELEC. The website's instructions are assuming I'm building an SD card... obviously I don't have one yet! How can I download and install OpenELEC to this QEMU Rasbian build? I'm running Windows 7. I tried their instruction to...
by Wolfram23
Thu Jul 26, 2012 4:14 am
Forum: Other projects
Topic: Touchscreens for Raspberry Pi
Replies: 105
Views: 177040

Re: Touchscreens for Raspberry Pi

Here's a video of someone who is using a touch screen with RPi, says it worked out of the box with a USB touch screen
http://www.youtube.com/watch?v=bHfulmm7_9E
by Wolfram23
Thu Jul 26, 2012 3:49 am
Forum: General discussion
Topic: Question about power protection in a Car
Replies: 6
Views: 1007

Question about power protection in a Car

Hey guys, hopefully this should be an easy answer. My ultimate plan is to put my RPi (whenever it arrives) into my car for multimedia, GPS, and OBDII interfacing. So, obviously, I need to take the 12-15V input and step it down. This I plan to accomplish with an MCP16323 DC-DC Switching Regulator. Sp...
by Wolfram23
Wed Jul 25, 2012 2:52 pm
Forum: Automation, sensing and robotics
Topic: DC-DC Converter for battery power supply
Replies: 8
Views: 6868

Re: DC-DC Converter for battery power supply

I've been looking into it, most efficient way is a DC-DC Switching Regulator like this one: http://www.digikey.ca/product-detail/en/MCP16323T-500E%2FNG/MCP16323T-500E%2FNGTR-ND/2835070 6 to 18V input, 5V output (in reality you can get this chip with many different outputs), up to 3A current. And it'...
by Wolfram23
Wed Jul 25, 2012 2:44 pm
Forum: Other projects
Topic: Touchscreens for Raspberry Pi
Replies: 105
Views: 177040

Re: Touchscreens for Raspberry Pi

Has anyone tried this one: http://www.ebay.com/itm/New-SAMSUNG-7-LED-LCD-Touch-Screen-Monitor-Kit-Outdoor-/110659973152 At $140 it's a pretty good deal for a 7" touch screen, HDMI input with USB for the touch feature. I'd like an explanation on the resolution though, it says 800x480 native but someh...
by Wolfram23
Wed Jul 25, 2012 2:38 pm
Forum: General discussion
Topic: RasPi power usage measurements ALL Models
Replies: 156
Views: 275438

Re: RasPi power usage measurements ~2 watts at idle

The RPi has a decent sleep mode at 120mA or so, but is there any way to enable Hibernate so that it unloads all RAM to the SD card and completely shuts down? Would be nice to have that for faster boot times and lower power.
by Wolfram23
Wed Jul 25, 2012 4:44 am
Forum: Other projects
Topic: Newbie here... looking for help (Carputer)
Replies: 6
Views: 3328

Re: Newbie here... looking for help (Carputer)

So... anyone know how to make a decent breadboard for this: MCP16323 DC-DC Switching Regulator http://www.digikey.ca/product-detail/en/MCP16323T-500E%2FNG/MCP16323T-500E%2FNGTR-ND/2835070 Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22284A.pdf It has specifications on everything that s...
by Wolfram23
Tue Jul 24, 2012 7:08 pm
Forum: Graphics, sound and multimedia
Topic: Line level
Replies: 12
Views: 5600

Re: Line level

I was just checking these things out the other day:

http://www.canakit.com/electronic-kits? ... 0AaQ&cat=7
by Wolfram23
Tue Jul 24, 2012 6:49 pm
Forum: C/C++
Topic: Recommeded C++ dev environment ?
Replies: 108
Views: 77674

Re: Recommeded C++ dev environment ?

I thought this would be a straightforward thread. Boy was I wrong. This is me reading it:

Image

I guess I should go buy some Linux and C++ books or something :(
by Wolfram23
Tue Jul 24, 2012 4:20 pm
Forum: General discussion
Topic: RaspberryPi On/Off Switch Idea
Replies: 81
Views: 52664

Re: RaspberryPi On/Off Switch Idea

Interesting discussion here. As someone who knows relatively little about electronics, I can confirm that most of what you're talking about is going over my head (although I understand the gist of it). I'm planning to put my RPi in a car, so it's already on a 12V DC circuit. Trying to figure out the...

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