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Author Topic: Useful things with Raspberry Pi  (Read 335811 times)

KB2FCV

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Useful things with Raspberry Pi
« on: April 30, 2014, 01:03:06 PM »

Very cool forum idea!

I recently picked up a Raspberry Pi. I was wondering what I could do with it to make it something useful in the shack that I might use often? Just looking for ideas...
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K4NYA

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RE: Useful things with Raspberry Pi
« Reply #1 on: May 01, 2014, 10:53:12 AM »

I've wanted to get one of those for awhile now, but haven't taken the plunge.  How do you like it?
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K0JEG

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RE: Useful things with Raspberry Pi
« Reply #2 on: May 10, 2014, 09:24:49 AM »

Stratum 1 NTP time server: http://rdlazaro.info/compu-Raspberry_Pi-RPi-stratum0.html

D-Star Acces point: http://www.k6jm.com/hs-piconfigG4KLX.htm

Weather Station: http://www.weewx.com (just started working on this one).

It's nice just having cheap Linux boxes around for experimenting and trying different things. The original point was to allow programming students to mess up a computer that they didn't need for the rest of their classes. Since it just uses SD cards it's a fairly simple process to start over. Even though it will work with 1 Amp power supplies like cell phone chargers, I always connect with 2 Amp supplies, usually used with tablets. My DV access point runs with a high capacity external battery so I can use it mobile without having to worry about losing power (can cause data to be corrupted if not powered down properly).

One other thing I'd like to do is experiment with remote rig control and audio, using the Hamlib libraries and JACK audio. I've messed around with the hamlib libraries running as a daemon on a laptop on a LAN and it worked very well. FYI, hamlib is a standard interface for ham radio devices (radios, rotators, etc) that can run in the background. JACK is an advanced low-latency audio routing application that can run over networks and other devices. It might be interesting to see if there's a way to integrate an iambic key, perhaps using MIDI or some other method too.
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K4NYA

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RE: Useful things with Raspberry Pi
« Reply #3 on: May 20, 2014, 08:13:26 AM »

Picked up a Rasberry Pi starter kit at Dayton!  Thanks for the links to the projects.  I'll have to give one of them a try once I learn my way around this thing.
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KA5PIU

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RE: Useful things with Raspberry Pi
« Reply #4 on: June 05, 2014, 03:17:50 PM »

Hello.

The Raspberry Pi is a linux computer.
As such, you can do just about anything with it.
The software that does P-25 can just run on one.
It can run the open source Chirp just fine.
And, it is so small that it can be mounted on smaller monitors on back.
Walmart changed out their in-store display units a while back, the things you see at the ends of the shelves.
That is PERFECT for this!
Mount a set of AA rechargeable cells and you have a crappy laptop, sort of.
But, for programming talkies, APRS, P-25 monitoring, that type of thing, PERFECT!
True, you could do this with a laptop, but, are you willing to drill holes for a mount onto your laptop.
So, think of the Raspberry Pi as an inexpensive building block, a module that can be your gateway to learning.
Thank you.
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KA3NXN

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RE: Useful things with Raspberry Pi
« Reply #5 on: June 12, 2014, 02:26:40 PM »

I'm using it for our IRLP node check it out. All are welcome. Our node number is 8478. Log on and try it out.

Jaime-KA3NXN.
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SM6XUN

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RE: Useful things with Raspberry Pi
« Reply #6 on: July 22, 2014, 08:59:36 AM »

There is a Dstar add-on card available for the RPi,
http://nwdigitalradio.com/dv3000-ambe-card-available-now
i have ordered a card but not tried it yet.
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K7VE

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« Last Edit: July 11, 2016, 03:24:41 PM by K7VE »
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W9WQA

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RE: Useful things with Raspberry Pi
« Reply #11 on: July 28, 2016, 09:10:57 PM »

ive programmed in basic, cbm and ibm. basic stamp i used but i know nothing of these new small board units. id like to see some simple program code so i can see if i can "get it"!. i think i have a mental block with "c".
oh, i also played with pic chips with the Microelectronika stuff from europe,40 and 80 pin pics,fun stuff but used basic and a compiler. i can do basic.

help?! ???
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W6IR

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RE: Useful things with Raspberry Pi
« Reply #12 on: July 30, 2016, 07:37:51 AM »

ive programmed in basic, cbm and ibm. basic stamp i used but i know nothing of these new small board units. id like to see some simple program code so i can see if i can "get it"!. i think i have a mental block with "c".
oh, i also played with pic chips with the Microelectronika stuff from europe,40 and 80 pin pics,fun stuff but used basic and a compiler. i can do basic.

help?! ???

Search for Python. That is the most commonly used programming language used on the Raspberry Pi.
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KB2FCV

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RE: Useful things with Raspberry Pi
« Reply #13 on: September 08, 2016, 01:33:35 PM »

Nice! some good ideas here. I completely forgot I opened this thread a while ago.

The wspr node looks pretty neat, and the solar power pi could come in useful for a project (well, I'd power off a battery w/solar to charge the battery).

Lots of other good projects mentioned. The D-star stuff looks interesting but I have a D-Star repeater close enough to hit with my ID-800 and I hardly use VHF/UHF FM/Digital these days (mostly on HF / VHF - weak signal)
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VE6MB

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RE: Useful things with Raspberry Pi
« Reply #14 on: September 09, 2016, 06:15:14 AM »

I don't have one of the newer ( version 3) units, only version 2, but I have been in the same situation as the original poster, looking for something useful to do with them. It seemed as though I would find something but it would be a little beyond the raspberry's capability.

Anyhow the old saying "necessity is the mother of invention" really rang true when I had a situation where something had "locked up" at home and I wasn't there to be able to fix the situation. I really needed to be able to physically cut the power to the device to reset it.

BINGO! Perfect idea. Utilizing a two channel 5v/120v relay, I built a remote controlled AC receptacle that can be turned off/on remotely, solving my problem. You can buy these for as little as $2 a piece, or you can use 4 channel (or more) unit to control many more outlets.

For those of you with remote controlled HF stations, do you have to leave your equipment powered up? Not anymore. There are many other potential uses for this functionality.

Here is a good YouTube demonstration.....one of many.

https://m.youtube.com/watch?v=8cPK8lh6oLI

Tino, VE6MB


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