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by bonzadog
Fri Mar 08, 2019 11:40 am
Forum: General discussion
Topic: influxdb installation problems?
Replies: 8
Views: 1046

influxdb installation problems?

I am interested influxBD but I hear that there is a real problem with the installation.
One Makler I know has dropped it and is using SQLLITE.

Any modern Tips anyone????

Many thanks in advance

BG
by bonzadog
Sat Feb 23, 2019 6:05 am
Forum: C/C++
Topic: Debugging on a Pi
Replies: 18
Views: 29395

Re: Debugging on a Pi

As a professional software developer, please avoid using "print" statements as your systemic debugging approach. Doing this ha few times for quick fixes is fine and probably expedient. Basing your debugging policy on this practice is dangerous for a number of reasons. Turning off these pr...
by bonzadog
Sat Feb 16, 2019 1:38 pm
Forum: C/C++
Topic: Debugging on a Pi
Replies: 18
Views: 29395

Re: Debugging on a Pi

ok so im writing some very very basic c programs at the moment using 'nano' and 'gcc' trying to tech myself using FAQs forums and google searches and what i would ideally like do is watch the defined int/float and arrays as they are loaded with numbers and cleared. stepping the program line by line...
by bonzadog
Sat Feb 16, 2019 1:35 pm
Forum: C/C++
Topic: Debugging on a Pi
Replies: 18
Views: 29395

Re: Debugging on a Pi

As a professional software developer, please avoid using "print" statements as your systemic debugging approach. Doing this ha few times for quick fixes is fine and probably expedient. Basing your debugging policy on this practice is dangerous for a number of reasons. Turning off these pr...
by bonzadog
Thu Dec 27, 2018 12:02 pm
Forum: Python
Topic: Best Database
Replies: 34
Views: 114254

Re: Best Database

SN wrote:
Tue May 22, 2012 10:25 am
MySQL would be the obvious choice
Why is the the obvious choice?
by bonzadog
Sun Dec 23, 2018 5:52 am
Forum: Other
Topic: Freertos for Raspberry pi 3
Replies: 5
Views: 37452

Re: Freertos for Raspberry pi 3

Hello, Recently I got a Raspberry pi 3, I want to start applying real time development (Freertos), I tried to do what I found to be called "porting" but I couldn't understand very well :( :( (I'm still a beginner with the Raspberry pi). Any instructions for a blind guy in a mine field ? T...
by bonzadog
Sat Nov 24, 2018 2:17 pm
Forum: Python
Topic: Python2 to python 3 converter
Replies: 3
Views: 1255

Python2 to python 3 converter

By accident, I discovered that STRETCH has a python2 to python3 converter. called 2to3 Seems to work on the small Python2 programme I converted. I am waiting for the day when python3 finally get to be standard, but it appears there a still a lot on P2 programmes in use. Pity Python was not backwards...
by bonzadog
Tue Nov 06, 2018 8:38 am
Forum: Automation, sensing and robotics
Topic: non-contact heart rate and respiration rate monitoring
Replies: 19
Views: 6371

Re: non-contact heart rate and respiration rate monitoring

cade, all: The invitation above stands. If you are thinking about using the ALT tech in any of your projects, send me a message. I will be happy to talk. cade: Monitoring respiration rates and heart rates of several people looks possible to do using ALT. 6.11.2018 I am really interested in the proj...
by bonzadog
Fri Sep 28, 2018 3:10 pm
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Re: Python 3.x as standard

I would like to see a bitter GUI maker than tkinker, I am trying wxpython but am having installation problem on the RPi, but the output in the docs. looks professional. I started using Python only about a year ago and very quickly abandoned Tkinter and wxPython. I like PyQt best for writing cross p...
by bonzadog
Tue Sep 25, 2018 10:46 am
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Re: Python 3.x as standard

We are now way off topic but I must say that the discussion is interesting. I dislike the use of the word toy because it has no real meaning. A lot of people who read this are not native English speakers. Python 3 is a very powerful language with a huge amount of import possibility (pypi) I would li...
by bonzadog
Mon Sep 24, 2018 7:37 pm
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Re: Python 3.x as standard

Well, I bet your statement will not find very much resonance. Well I agree with Heater. C has been around for 45 years. It has changed a lot over that time and been used for more than half the software in the world. At no time has there been anything comparable to the Python2/Python3 debacle. Perso...
by bonzadog
Mon Sep 24, 2018 5:08 pm
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Re: Python 3.x as standard

Is it possible to make Python 3.x the standard python version? At the moment is set to python 2.7 is rather an old hat. Not a good idea as other scripts in your system may require Python 2. For Python 3 scripts use: python3 /path/script.py Or as mentioned make sure you have a proper 'shebang' as fi...
by bonzadog
Mon Sep 24, 2018 4:58 pm
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Re: Python 3.x as standard

scruss, I guess it's a sign that it's a mature language. I take the opposite view. Certainly Python has been around for a good long time. But it's still a toy language. It has no formally recognized standard, like C, C++, Javascript, Fortran, COBOL, Algol etc. Does it even have a formal specificati...
by bonzadog
Mon Sep 24, 2018 10:36 am
Forum: Python
Topic: Python 3.x as standard
Replies: 25
Views: 3947

Python 3.x as standard

Is it possible to make Python 3.x the standard python version? At the moment is set to python 2.7 is rather an old hat.
by bonzadog
Mon Sep 24, 2018 10:31 am
Forum: Python
Topic: Raspberry doesnt respond during openCV instalation
Replies: 4
Views: 1045

Re: Raspberry doesnt respond during openCV instalation

I had that when I compiled on a RPI3 using the number of CPUs option -J2, I changed to -J1 and the run was successfull.
One could also temporarily increase the swap space and leave the -j2. That works as well.
by bonzadog
Tue Jul 17, 2018 8:36 am
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

Recomended power supply is 5v 2.5A at the board. The official power supply is actually 5.1v to compensate for voltage drop over the supply cable. If in doubt, buy the reasonably priced official power supply. It's always worth noting that we have sold MILLIONS of devices in to commercial or industri...
by bonzadog
Tue Jul 17, 2018 8:26 am
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

Well, the question has been answered: No Spec from RPi but some by other people. I don't believe that is the case at all. Perhaps you could detail a necessary specification which has not been officially provided? I had done that by providing an example in a previous comment. Or take a look at other...
by bonzadog
Mon Jul 16, 2018 9:49 am
Forum: General discussion
Topic: A Case for RPi
Replies: 8
Views: 1349

Re: A Case for RPi

Have you considered patents? Is reselling that case (sounds like this is your intention) allowed? Does it infringe on any existing patents ( China can get away with it, but if you aren't in China, you likely won't) That is applicable for other cases I have seen......But is this a patent infringemen...
by bonzadog
Mon Jul 16, 2018 9:47 am
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

Have you asked or looked at the RS and Element14/Farnell websites as they are the actual people who make and sell these devices? RaspberryPi design them, but then license that design out. I'm not saying they have what you need, but worth a go if you cannot find it on here. (apart from the Zero's) T...
by bonzadog
Sun Jul 15, 2018 4:35 pm
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

DirkS wrote:
Sun Jul 15, 2018 4:31 pm
bonzadog wrote:
Sun Jul 15, 2018 4:25 pm
Thank you for your input. But who is Jamesh?
memberlist.php?mode=viewprofile&u=406
Thank you.
by bonzadog
Sun Jul 15, 2018 4:27 pm
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

Have you asked or looked at the RS and Element14/Farnell websites as they are the actual people who make and sell these devices? RaspberryPi design them, but then license that design out. I'm not saying they have what you need, but worth a go if you cannot find it on here. (apart from the Zero's) T...
by bonzadog
Sun Jul 15, 2018 4:25 pm
Forum: HATs and other add-ons
Topic: Hardware Specification of the RPi's
Replies: 22
Views: 3228

Re: Hardware Specification of the RPi's

I have some technical literature about the RPi's but nothing that is of real meaning. Jamesh is currently creating / compiling / collating a single Technical FAQ but I believe nearly all the technical information you are seeking is already documented and publicly available, albeit spread around a l...
by bonzadog
Sat Jul 14, 2018 8:19 pm
Forum: General discussion
Topic: A Case for RPi
Replies: 8
Views: 1349

Re: A Case for RPi

The case looks like it is to be used with a Pi emulating a Nintendo device. I would look for a more generic case for a consumer/commercial project that I would be selling. Possibly one that I could add my own branding to. You are probably right, but actually, the case looks great. There is an opena...
by bonzadog
Sat Jul 14, 2018 2:08 pm
Forum: General discussion
Topic: A Case for RPi
Replies: 8
Views: 1349

Re: A Case for RPi

broken link Corrected from another of your posts (I'll give you the benefit of doubt that you're not spamming). https://www.amazon.co.uk/Retroflag-VERSION-Functional-Shutdown-Raspberry/dp/B07D7BZZGB/ref=sr_1_1_sspa?ie=UTF8&qid=1531567728&sr=8-1-spons&keywords=retroflag+nespi+case%2B&...
by bonzadog
Sat Jul 14, 2018 11:43 am
Forum: General discussion
Topic: A Case for RPi
Replies: 8
Views: 1349

A Case for RPi

14.7.2018 I thought that some of you may be interested in this: I have found and bought this case - CASE + from retroflag https://www.amazon.co.uk/Retroflag-VERS ... e%2B&psc=1 to be very useful. The case has an ON/OFF switch and a push switch on the case! The case looks good and I will be soon ...

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