Raspberry Pi


S

Seymore4Head

I have always been a tech fan, but I really have no need to have one
of these in my car as I hardly drive the thing any more. I stumbled
on this link by accident. I was watching this video and the guy is
complaining about trying to mount a keyboard in his car.

It just made me think of how cool it would be if the Raspberry Pi had
blue tooth. You could just use your cellphone for a keyboard.

I don't know how much that would add to the cost of the Raspberry Pi
or the size, but it would seem to be something to shoot for in the
future.

I would like to see what the camera video quality looks like.

How does the computer get engine stats and speed from the car?

Anyone have a Raspberry Pi?

 
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M

Mr. Man-wai Chang

It just made me think of how cool it would be if the Raspberry Pi had
blue tooth. You could just use your cellphone for a keyboard.
You could do that! Just buy a BT dongle that got Linux support.
I don't know how much that would add to the cost of the Raspberry Pi
or the size, but it would seem to be something to shoot for in the
future.
I would like to see what the camera video quality looks like.
How does the computer get engine stats and speed from the car?
I am interested in building a remote control toy car using Pi and cheap
webcam. Then I could drive it using first-person view using my desktop
PC... :)

--
@~@ Remain silent. Nothing from soldiers and magicians is real!
/ v \ Simplicity is Beauty! May the Force and farces be with you!
/( _ )\ (Fedora 19 i686) Linux 3.14.23-100.fc19.i686
^ ^ 18:24:02 up 2 days 23:25 0 users load average: 0.00 0.01 0.05
ä¸å€Ÿè²¸! ä¸è©é¨™! ä¸æ´äº¤! ä¸æ‰“交! ä¸æ‰“劫! ä¸è‡ªæ®º! è«‹è€ƒæ…®ç¶œæ´ (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
 
P

Paul

Mr. Man-wai Chang said:
You could do that! Just buy a BT dongle that got Linux support.


I am interested in building a remote control toy car using Pi and cheap
webcam. Then I could drive it using first-person view using my desktop
PC... :)
I could find a combo dongle (Wifi + Bluetooth), but they
wanted a fortune for it.

The Edimax Wifi 802.11n was about $7, and this Bluetooth
is probably in the same range. With the B+ model of the
Raspberry PI, I think you get four USB ports, so you
could waste a couple to hold both kinds of adapter.

[The mis-spelling is theirs...]
https://www.modmypi.com/nano-bluethooth-dongle

As for building a remote control vehicle, it wouldn't
take much to overload the processor. If you're capturing
video and transmitting it back to the base station,
that might take a fair bit of the CPU right there.
It doesn't take much bad coding, for that to happen
(at the Linux level).

If the webcam records in MPG or MJPEG, then it might
already be compressed, ready for transport to your base station.

There was a Korean company a few years back, doing a quad
core board along the same lines. But again, multiple
cores won't help if the code is poorly written to take
advantage of them. That would be my main concern with
the lower power/lower clock rate devices. For example,
when I pipe commands on Linux, sometimes I see the
commands being run on the same core. While another
core isn't sharing the load.

Paul
 
M

Mr. Man-wai Chang

There was a Korean company a few years back, doing a quad
core board along the same lines. But again, multiple
cores won't help if the code is poorly written to take
advantage of them. That would be my main concern with
the lower power/lower clock rate devices. For example,
when I pipe commands on Linux, sometimes I see the
commands being run on the same core. While another
core isn't sharing the load.
That's interesting. I have never done real-time programming, but
business applications using Visual Foxpro! ;)

--
@~@ Remain silent. Nothing from soldiers and magicians is real!
/ v \ Simplicity is Beauty! May the Force and farces be with you!
/( _ )\ (Fedora 19 i686) Linux 3.14.23-100.fc19.i686
^ ^ 00:12:03 up 3 days 23:07 0 users load average: 0.00 0.01 0.05
ä¸å€Ÿè²¸! ä¸è©é¨™! ä¸æ´äº¤! ä¸æ‰“交! ä¸æ‰“劫! ä¸è‡ªæ®º! è«‹è€ƒæ…®ç¶œæ´ (CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa
 
D

David

At Wed, 03 Dec 2014 19:47:48 -0500, Seymore4Head rearranged some electrons
to write:
I have always been a tech fan, but I really have no need to have one of
these in my car as I hardly drive the thing any more. I stumbled on
this link by accident. I was watching this video and the guy is
complaining about trying to mount a keyboard in his car.

It just made me think of how cool it would be if the Raspberry Pi had
blue tooth. You could just use your cellphone for a keyboard.

I don't know how much that would add to the cost of the Raspberry Pi or
the size, but it would seem to be something to shoot for in the future.

I would like to see what the camera video quality looks like.

How does the computer get engine stats and speed from the car?

Anyone have a Raspberry Pi?

Yes, I have been playing around with a couple of them for a year or so.
 
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R

RayLopez99

I am interested in building a remote control toy car using Pi
and cheap
webcam. Then I could drive it using first-person view using my
desktop
PC... :)
I can see a potential terrorist application of this toy truck! Pack it full with Chinese firecrackers, drive it head-long into a group of people and *BANG*! You can create panic.

RL
 

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