[tccrockets] Re: [roc-chat] Re: Raspberry Pi "Compute Module" has 4GB eMMC
- From: James Dougherty <jafrado@xxxxxxxxx>
- To: ROC Chat <roc-chat@xxxxxxxxxxxxx>, TCC chat <tccrockets@xxxxxxxxxxxxx>
- Date: Wed, 18 Mar 2015 22:46:28 -0700
Yes, exactly - the difference between a B and a B+ is the header and you
have Micro-SD on the motherboard.
The B+ also has better power options for attaching an external universal
battery elimination circuit (UBEC) for a clean portable 5V output (B you
solder to the 5V cap directly).
One thing I've started since last summer is a "RocketPI" modification to
the board where components are removed
and I have built a flight recorder using the low-profile Spy-Cam with the
umbilical. It's pretty much a universal build your own anything device -
focus however is on 1080p output to USB drive.
We're doing some final flight testing next week and I will post with full
instructions, BOM, part lists and the software.
Stay tuned.
On Wed, Mar 18, 2015 at 10:39 PM, David Smith <davew6dps@xxxxxxxxx> wrote:
> There is no obviously performance difference between the original
> Raspberry Pi variations, other than the difference in ports. Running the OS
> on a SD card and using a USB stick for storage seems to work best. The
> compute module runs about the same, but is limited to only the 4GB on board
> card. With the other RPis you can more easily use them for multiple
> purposes by simply swapping SD cards. The compute module is really just
> designed for imbedding in a single use.
>
> Of course the Raspberry Pi 2 has much higher performance...
>
> Dave Smith
> NAR 78668, L2
> Amateur Extra, W6DPS
>
> On Wed, Mar 18, 2015 at 10:27 PM, tom.hanan <tom.hanan@xxxxxxxxxxxxxxx>
> wrote:
>
>> Yup, but your still better off running your secure os on an arm stick
>> which has all the same hardware as a pi but with real raw flash ;)
>>
>>
>> Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone
>>
>>
>> -------- Original message --------
>> From: Henry Baker <hbaker1@xxxxxxxxxxxx>
>> Date:03/18/2015 9:22 PM (GMT-08:00)
>> To: Tom Hanan <tom.hanan@xxxxxxxxxxxxxxx>
>> Cc:
>> Subject: Raspberry Pi "Compute Module" has 4GB eMMC
>>
>> Hi Tom:
>>
>> Compute Module + IO Board = about the same capability as the standard RPi,
>> except for the built-in eMMC memory.
>>
>> Too bad it's so damn expensive: $65 (Q1 price)
>>
>> http://www.raspberrypi.org/raspberry-pi-compute-module-new-product/
>>
>> Add an I/O board, and it's $300 !
>>
>> But at least it should be possible to get pretty close to bare metal,
>> w/o the low level nonsense of the SD card. The eMMC also has much
>> higher performance, I believe.
>>
>> Henry Baker
>> Santa Barbara, CA
>>
>>
>>
>
>
> --
> David P Smith
> NAR 78668, L2
> Amateur Extra, W6DPS
>
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- » [tccrockets] Re: [roc-chat] Re: Raspberry Pi "Compute Module" has 4GB eMMC - James Dougherty
