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by B.Goode
Tue Feb 13, 2018 7:30 pm
Forum: Beginners
Topic: Display Data and Chart Diagram from Database and Controling GPIO with Flask
Replies: 4
Views: 188

Re: Display Data and Chart Diagram from Database and Controling GPIO with Flask

Since this is a Raspberry Pi forum I will suggest that Thonny might be a good choice, since it will run on both Raspbian and Windows. However, the potentially incompatible difference in the way that line endings are represented on the two Operating Systems means that you should be wary of assuming t...
by B.Goode
Tue Feb 13, 2018 6:27 pm
Forum: Troubleshooting
Topic: please help its my graduation project
Replies: 11
Views: 435

Re: please help its my graduation project

I will not be able to provide any further assistance with your project.
by B.Goode
Tue Feb 13, 2018 5:31 pm
Forum: General discussion
Topic: [light humour]I want my Pi to make Bacon Butties
Replies: 11
Views: 443

Re: [light humour]I want my Pi to make Bacon Butties

I'm distraught. My Pi smell like rotting fish and it's WIFI waves make my dog howl. Another thread highjack. The OP wanted to build a canal boat to transport bacon. Maybe the RPi could be used for navigation. Perhaps his PhD is in sustainable transport of foodstuffs? In which case it could do stock...
by B.Goode
Tue Feb 13, 2018 5:08 pm
Forum: Graphics, sound and multimedia
Topic: pi player piano
Replies: 11
Views: 399

Re: pi player piano

Maybe something based on Sonic Pi?

http://sonic-pi.net

Establishing pitch and duration by reading an external source and passing those to Sonic Pi to be played looks as if it might be quite simple?

And I suspect a little web searching for that as a target might reveal that it has been done.
by B.Goode
Tue Feb 13, 2018 4:52 pm
Forum: General discussion
Topic: [light humour]I want my Pi to make Bacon Butties
Replies: 11
Views: 443

Re: [light humour]I want my Pi to make Bacon Butties

How do I stop the loud beeping from the circular box in the ceiling? It is considered impolite in these forums to highjack a thread to divert the discussion. Please ask the Moderator to move this to a new thread. In the meantime, try hitting that circular plastic box several times very hard with th...
by B.Goode
Tue Feb 13, 2018 4:23 pm
Forum: General discussion
Topic: [light humour]I want my Pi to make Bacon Butties
Replies: 11
Views: 443

Re: [light humour]I want my Pi to make Bacon Butties

Bump I need this for my PhD dissertation that's due in by Friday! You should have said. Delighted to help, day or night... There used to be a series of programming tutorials for the Ruby language that used the catchphrase "Chunky Bacon!" Perhaps that would help you find a solution quickly? Did you ...
by B.Goode
Tue Feb 13, 2018 4:16 pm
Forum: Troubleshooting
Topic: please help its my graduation project
Replies: 11
Views: 435

Re: please help its my graduation project

You seem to have connections to pins 9 and 11 on the RPi header. You are not using either Pin 15, nor gpio15. If the red and green assemblies to the left are the external power supply for the Servo they might be reversed if usual colour codes are being used. There are no markings on your breadboard....
by B.Goode
Tue Feb 13, 2018 3:53 pm
Forum: Advanced users
Topic: RPi configred as Access Point to configure Wifi?
Replies: 16
Views: 718

Re: RPi configred as Access Point to configure Wifi?

Another example of an RPi OS image that presents a wireless hotspot that allows association with an upstream WiFi network:

https://hacks.mozilla.org/2018/02/how-t ... s-gateway/
by B.Goode
Tue Feb 13, 2018 2:33 pm
Forum: General discussion
Topic: [light humour]I want my Pi to make Bacon Butties
Replies: 11
Views: 443

Re: [light humour]I want my Pi to make Bacon Butties

There is a worksheet here about developing an algorithm for making a Jam Sandwich. Maybe you could base something on that?

http://code-it.co.uk/unplugged/jamsandwich
by B.Goode
Tue Feb 13, 2018 12:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Reading data from a PL2303 serial USB converter
Replies: 7
Views: 358

Re: Reading data from a PL2303 serial USB converter

However, no data is displayed. What can I try to make this work? First, check that the usb serial port adaptor is working with your RPi by doing a simple loopback of the data at the rs232 connection, probably pins 2 and 3, and verify that data typed into your chosen serial test program on the RPi i...
by B.Goode
Tue Feb 13, 2018 12:15 pm
Forum: Add-ons
Topic: Ultimate GPS breakout or USB GPS dongle ?
Replies: 3
Views: 179

Re: Ultimate GPS breakout or USB GPS dongle ?

The range of a GPS receiver has to be about 12,550 miles, because that is the height above the earth at which the constellation of GPS satellites orbits. The accuracy/sensitivity/reliability of a GPS receiver depends very much on the design of the chipset it is based on, and the care with which the ...
by B.Goode
Tue Feb 13, 2018 11:55 am
Forum: Troubleshooting
Topic: Python program running in Idle but not with command line
Replies: 6
Views: 193

Re: Python program running in Idle but not with command line

How, precisely, do you run the script from the shell prompt?

Does the script begin with a 'shebang' line (#!.... ) ? If so, what is it?

And please confirm that the IDE you are using is IDLE. Not IDLE3?
by B.Goode
Tue Feb 13, 2018 11:34 am
Forum: Troubleshooting
Topic: SOLVED: RuntimeError: Failed to add edge detection
Replies: 8
Views: 281

Re: RuntimeError: Failed to add edge detection

And I didn't need SUDO. Must have been a Jessie thing...

It was a Raspbian Wheezy 'thing'.

Sudo-less access to gpio was introduced with the release of Raspbian Jessie in September 2015.

Reference: http://downloads.raspberrypi.org/raspbi ... _notes.txt
by B.Goode
Tue Feb 13, 2018 11:25 am
Forum: Troubleshooting
Topic: Software ok on RPi 2 model B but not on RPiW0 !
Replies: 1
Views: 97

Re: Software ok on RPi 2 model B but not on RPiW0 !

Can you help me ? Despite your deadline making you anxious, if you stop for a moment you will realise that you have not given any details that would allow anyone to offer constructive help. What Operating Systems are running on the two RPi? Are they the same version, updated to the same status? Wha...
by B.Goode
Tue Feb 13, 2018 10:33 am
Forum: Beginners
Topic: Display Data and Chart Diagram from Database and Controling GPIO with Flask
Replies: 4
Views: 188

Re: Display Data and Chart Diagram from Database and Controling GPIO with Flask

could anyone help me why its always say indentationError: unexpected indent ? The full error message from the python interpreter will probably give a line number or other context for the error it has reported. Because your indentation is 'variable' it is difficult to spot a potential problem just b...
by B.Goode
Tue Feb 13, 2018 10:13 am
Forum: Troubleshooting
Topic: SOLVED: RuntimeError: Failed to add edge detection
Replies: 8
Views: 281

Re: RuntimeError: Failed to add edge detection

Maybe there is a conflict with some other use of Pin 7 (gpio4)? Are you physically constrained to using that pin? Do you get the same result if you try a nearby alternative such as 11, 13 or 15? (Invoking the script with sudo should not be necessary if using a recent version of the Raspbian Operatin...
by B.Goode
Mon Feb 12, 2018 6:54 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: PiServer - Error executing certtool
Replies: 7
Views: 310

Re: PiServer - Error executing certtool

This issue seems to have been raised, with a suggested fix, here: https://github.com/raspberrypi/piserver/issues/12
by B.Goode
Mon Feb 12, 2018 5:57 pm
Forum: General discussion
Topic: Soldering Pi Zero W GPIO Pins
Replies: 12
Views: 367

Re: Soldering Pi Zero W GPIO Pins

My reading of the diagram (which looks like the same from both sources cited) leads me to suggest, in addition to the Pimoroni 2x2x3 'hack', connecting these pins:

7
9
11
15
19
23
25
29
31

14
20
24
26
30
34

In addition, if the board is a true HAT you will also need 27 and 28.
by B.Goode
Mon Feb 12, 2018 5:38 pm
Forum: Teaching and learning resources
Topic: How-To: Pi with TightVNC and Fing for Network Monitoring
Replies: 7
Views: 90711

Re: How-To: Pi with TightVNC and Fing for Network Monitoring

Martah wrote:
Mon Feb 12, 2018 3:43 pm
Has anyone found a new method?

Have you considered asking the Fing/Fingbox team via one of the contact addresses on their own website:
https://www.fing.io/contact/
by B.Goode
Mon Feb 12, 2018 5:15 pm
Forum: General discussion
Topic: Soldering Pi Zero W GPIO Pins
Replies: 12
Views: 367

Re: Soldering Pi Zero W GPIO Pins

Okay, thanks for the help! Does it matter which GND pin I solder then? Thanks again for any help, Louis P Doesn't it have to be the one(s) used by the HAT? But their own wiring diagram does not make it clear whether/if there is a single ground connection. http://learn.mime.co.uk/docs/mearm-pi-hat-t...
by B.Goode
Mon Feb 12, 2018 5:06 pm
Forum: Troubleshooting
Topic: SSH login via VNC
Replies: 7
Views: 301

Re: SSH login via VNC

But when I was trying at VNC VIewer , It is refusing the connection with message " The connection was refused by the computer " [ stuff trimmed... ] Can anybody help me regarding same ?? Raspberry Pi Foundation documentation regarding VNC is here: https://www.raspberrypi.org/documentation/remote-ac...
by B.Goode
Mon Feb 12, 2018 5:00 pm
Forum: Troubleshooting
Topic: Remote GPIO
Replies: 10
Views: 1076

Re: Remote GPIO

hi i was send this command script into the remote pi and it was not happend with remote pi (led not on). FYI i'm use wifi network. what should i do ? sorry for my bad english 3 suggestions. 1. Ask the Moderator to start a new thread for your question, as there is no evidence it is related to the th...
by B.Goode
Mon Feb 12, 2018 3:12 pm
Forum: Beginners
Topic: Removing Thonny for Python IDE
Replies: 4
Views: 185

Re: Removing Thonny for Python IDE

Disclaimer: the following is untested... Differs from the similar overlapping suggestion from @scotty101 in that I think purge also removes related config files. The Raspberry Pi Foundation blog post that announced the inclusion of the Thonny IDE https://www.raspberrypi.org/blog/a-raspbian-desktop-u...
by B.Goode
Mon Feb 12, 2018 3:10 pm
Forum: Beginners
Topic: Removing Thonny for Python IDE
Replies: 4
Views: 185

Re: Removing Thonny for Python IDE

Unintended duplicate removed
by B.Goode
Mon Feb 12, 2018 1:00 pm
Forum: Beginners
Topic: Booting and OS
Replies: 14
Views: 533

Re: Booting and OS

Could you please let me know what exactly OS images mean??
Something like -

"A file which contains a bit-by-bit representation of the content needed to produce an exact replica of a CD, microSD card, or some other storage medium."

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