Go to advanced search

by JF002
Sat Dec 22, 2018 10:51 pm
Forum: General discussion
Topic: Send SCPI command to a RP 3B+ using VISA thought Ethernet
Replies: 1
Views: 468

Re: Send SCPI command to a RP 3B+ using VISA thought Ethernet

Hi, I don't know if there is an implementation of a SCPI server running on Linux/ARM, but if I remember correctly, SCPI protocol is just plain ASCII commands. You could then "just" write a TCP server in your preferred language that parses the string comming from a TCP socket and responds accordingly...
by JF002
Sun Nov 19, 2017 6:49 pm
Forum: Other projects
Topic: Is MAGI mining profitable?
Replies: 23
Views: 20844

Re: Is MAGI mining profitable?

Pi3 gives me 11 khash/s don't have an energy meter attached to it so not 100% sure of it's usage. How do you achieve 11 Kash/s? I've just compiled it, and it runs @ 4.4Khash (4*1.1). Did you use special compile options? Overclocking? Thanks Nothing special other than using the 64bit OS https://gith...
by JF002
Sun Nov 19, 2017 6:13 pm
Forum: Other projects
Topic: Is MAGI mining profitable?
Replies: 23
Views: 20844

Re: Is MAGI mining profitable?

S0litaire wrote:
Tue Nov 07, 2017 3:25 pm
Pi3 gives me 11 khash/s don't have an energy meter attached to it so not 100% sure of it's usage.
How do you achieve 11 Kash/s?
I've just compiled it, and it runs @ 4.4Khash (4*1.1). Did you use special compile options? Overclocking?

Thanks
by JF002
Thu Jan 28, 2016 9:23 pm
Forum: Advanced users
Topic: 24x7x365 Products using RPI2-How to get rid of Kernel Panic
Replies: 7
Views: 976

Re: 24x7x365 Products using RPI2-How to get rid of Kernel Pa

USB Flash drives use the same memory technology than SDCard, and they have the same "weaknesses": they support a limited number of write/erase cycles on each memory cells. The error message you get could be caused by a filesystem corruption because of a faulty flash drive. I once tried to set up 2 r...
by JF002
Thu Aug 13, 2015 7:03 pm
Forum: General discussion
Topic: Elevator project
Replies: 19
Views: 2942

Re: Elevator project

It still makes no sense. Getting stuck in a lift because the interface is busted is no fun. The same would be true for any other GUI application. Windows PC, Android phone, car entertainment system,... everything tends to crash one day or another, it does not make sense, but it happens... The mere ...
by JF002
Thu Aug 13, 2015 6:45 pm
Forum: Networking and servers
Topic: Transmission drop connection
Replies: 2
Views: 806

Re: Transmission drop connection

You mean that your internet router gets disconnected from the internet when you download a torrent from your RaspberryPi? Some router cannot handle a lot of connections at the same time, and torrents tends to connect to a lot of peers on the internet. The router from my ISP had this problem, it woul...
by JF002
Thu Aug 13, 2015 6:35 pm
Forum: General discussion
Topic: Elevator project
Replies: 19
Views: 2942

Re: Elevator project

Certainly not one for commercial use. It depends on what the RaspberryPi would be used for... If the rPi is used for driving actuator, reading sensor and garantee the safety of the elevator, you're right. But if it is used as an HMI (Human Machine Interface), GUI,... which communicates with another...
by JF002
Sat Jul 18, 2015 6:26 pm
Forum: General discussion
Topic: USB 2.0
Replies: 5
Views: 906

Re: USB 2.0

If you really need all the bandwidth available on USB3.0, you'll need a higher-end (and higher priced) device. High-end NAS cost more money than a RaspberryPi, there has to be a reason for that... Some device may be compatible with USB3.0, but may not provide the full speed of USB3.0. That beeing sa...
by JF002
Mon Jun 29, 2015 9:23 pm
Forum: Off topic discussion
Topic: Personal distributed "cloud" storage
Replies: 2
Views: 1614

Re: Personal distributed "cloud" storage

Yeah, rsync is an easy solution, but it is not really "distributed". Rsync will synchronise data from one box to another... But if I have 3 or 4 boxes, synchronisation might become a nightmare... Here is an example of what I have in my mind : I build 4 identical boxes (rpi + hard-drive). I keep one ...
by JF002
Sun Jun 28, 2015 5:42 pm
Forum: Off topic discussion
Topic: Personal distributed "cloud" storage
Replies: 2
Views: 1614

Personal distributed "cloud" storage

Hi, As many of you, I have a lot of data (music, files, work, pictures,...) spread across several devices and hard-drives. I would like to safely and easily backup all my data, and perhaps the ones from my family and friends. I could buy a NAS and a bunch of hard-drives, but it's quite expensive, an...
by JF002
Wed Apr 15, 2015 9:03 pm
Forum: Advanced users
Topic: RS232 Wifi Server
Replies: 11
Views: 2691

Re: RS232 Wifi Server

On the mobile device is a 3rd party application connecting to the pi via wifi and listening for rs232 messages on the set IP address and port That doesn't make sense... RS232 is a standard for serial communications. It defines how to send and receive bits on minimum 3 wires (ground, tx and rx). IP ...
by JF002
Tue Apr 07, 2015 8:06 pm
Forum: General programming discussion
Topic: Combining 2 tutorials
Replies: 6
Views: 1309

Re: Combining 2 tutorials

You can store the result of gettemp() in a variable in order to use it later:

Code: Select all

# As an integer
tempDS18B20 = gettemp(id)/float(1000)
# As a String
tempDS18B20 = '{:.3f}'.format(gettemp(id)/float(1000)) 
by JF002
Tue Apr 07, 2015 6:35 pm
Forum: General programming discussion
Topic: Combining 2 tutorials
Replies: 6
Views: 1309

Re: Combining 2 tutorials

From what I can see, you have merged 2 python scripts into a single one. Now, you'll have to rearrange some things in order to make it work the way you want. First you can remove the line #!/usr/bin/python (on line 39), because it is already specified on line 1. Then, what happens when you execute y...
by JF002
Sat Feb 28, 2015 7:15 pm
Forum: Networking and servers
Topic: Two web server on the same RasPi
Replies: 5
Views: 1901

Re: Two web server on the same RasPi

You can start as much webservers as you want (as long as there are enough ressources to make them run), BUT, they cannot run on the same port. In your case, you can start the first one on the port 8080, and the second one on the port 8081, for example. I don't know any thing about the 2 applications...
by JF002
Wed Jul 16, 2014 11:10 am
Forum: Off topic discussion
Topic: Personal projects management
Replies: 6
Views: 3375

Re: Personal projects management

Hi Liz, I use a Midori Traveler's notebook: you can see it in the background of the "documents" lozenge on the help page. (We didn't have anything else that looked sufficiently "documenty"!) They're wonderfully flexible: you can fill them with smaller dedicated notebooks which can then be archived w...
by JF002
Thu Jul 10, 2014 9:56 pm
Forum: Off topic discussion
Topic: Personal projects management
Replies: 6
Views: 3375

Re: Personal projects management

I started using CherryTree recently, which seems quite good :) Available for both Windows and Linux, and uses just a single datafile, so I can store the datafile in Dropbox and access it both on my Linux desktop and my Windows laptop! Interesting! I'll give it a try, thanks! If such a web-based sof...
by JF002
Thu Jul 10, 2014 3:48 pm
Forum: Off topic discussion
Topic: Personal projects management
Replies: 6
Views: 3375

Re: Personal projects management

What about mind mapping software? I've heard FreeMind mentioned. (Haven't used it but I've seen their sample screenshots, etc.) As far as I know it, mind mapping software allows to create nice diagrams during a brainstorming session, for example. But is there a mind mapping software that allows to ...
by JF002
Thu Jul 10, 2014 1:33 pm
Forum: Off topic discussion
Topic: Personal projects management
Replies: 6
Views: 3375

Personal projects management

Hi! This topic is not directly related to RaspberryPi, but I think that I could find other people with the same needs as mine on this board. I'm looking for "something" that would help me to manage my (numerous) personal projects. These projects can be related to software development, but also to da...
by JF002
Fri Mar 21, 2014 4:20 pm
Forum: HATs and other add-ons
Topic: Wolfson audio card install and worth
Replies: 41
Views: 44021

Re: Wolfson audio card install and worth

Hi! I received my audio card at the beginning of the week, and I wanted to share my first impressions with you! In summary, in my opinion, it's a very good product, it does what I expect it to do : digital (SPDIF) output. Using the OS image provided on the website, it's quite easy to setup. I instal...
by JF002
Thu Jan 16, 2014 5:42 pm
Forum: Other projects
Topic: UPS for Raspberry PI
Replies: 16
Views: 15561

Re: UPS for Raspberry PI

I was searching for something allowing me to plug/unplug the power cord of my raspberrypi without having to manually shutdown the system. I thought about something that would command a relay when the raspberrypi is shutting down, but this UPS is very interesting : I just have to unplug the power sup...
by JF002
Wed Jan 01, 2014 3:38 pm
Forum: Media centres
Topic: Touchradio, a touchscreen based audio player/streamer
Replies: 2
Views: 2690

Re: Touchradio, a touchscreen based audio player/streamer

No problem, thanks for sharing. As I'm working on a RaspberryPi, I posted on this forum, but you're right, it might interest people from the Slim Devices forum.
by JF002
Sat Dec 28, 2013 9:59 pm
Forum: Media centres
Topic: Touchradio, a touchscreen based audio player/streamer
Replies: 2
Views: 2690

Touchradio, a touchscreen based audio player/streamer

Hi, I've been working on a personnal project during the last months, I would like to introduce it to you. It's called Touchradio. The main goal of this project is to build an audio player that allows me to listen to my music library hosted on my LAN, and to web streams. The user interface is based o...
by JF002
Thu Dec 26, 2013 6:23 pm
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14540

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

Ah ok, thanks. So, my account number is 15476939325729419053. It's running for ~10 hours, now.
by JF002
Thu Dec 26, 2013 9:50 am
Forum: Off topic discussion
Topic: Help Bootstrap "NXT" an innovative successor to Bitcoin
Replies: 32
Views: 14540

Re: Help Bootstrap "NXT" an innovative successor to Bitcoin

I'm curious about these crypto currencies, and I decided to install NXT on a fresh installed raspberryPi. I can leave it running as long as it does not create any problem on my network and internet connection. I followed your simplified installation guide, browsed to http://192.168.0.x:7874, unlock ...
by JF002
Sat Dec 21, 2013 9:16 am
Forum: Networking and servers
Topic: Raspberry Pi CPU seems to Hang when running soffice.bin
Replies: 3
Views: 1743

Re: Raspberry Pi CPU seems to Hang when running soffice.bin

soffice.bin seems to be related to OpenOffice, and not to Owncloud...
I searched for "soffice.bin" in google and found a lot of entries about soffice.bin eating all the CPU and RAM.

Are you using OpenOffice on your pi?

Go to advanced search