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by hippy
Fri Dec 14, 2018 1:32 pm
Forum: Graphics, sound and multimedia
Topic: Connecting an USB MIDI keyboard to a synth with a 5-pole MIDI input
Replies: 1
Views: 44

Re: Connecting an USB MIDI keyboard to a synth with a 5-pole MIDI input

MIDI 5-pin output is just a serial UART protocol though a buffer so should be easy enough on a Pi with a fairly simple circuit attached to the GPIO connector. There are possibly HAT's and add-ons designed for that. One shouldn't need anything but a resistor and a 5-pin socket / cable if willing to r...
by hippy
Fri Dec 14, 2018 10:44 am
Forum: General discussion
Topic: My RPi model B+ won't turn on, is there any way to revive it?
Replies: 19
Views: 482

Re: My RPi model B+ won't turn on, is there any way to revive it?

That does not compute! I never said "there are no repairable parts" full stop. It's right there - If your PI is really broken *nothing* will revive it, (there are no repairable parts) So, am I speaking Chinese instead of English :?: :?: :?: Or is my sentence-building-foo off? Just wondering.... :mr...
by hippy
Fri Dec 14, 2018 10:30 am
Forum: General discussion
Topic: STICKY: Pi 3 A+
Replies: 120
Views: 7848

Re: STICKY: Pi 3 A+

I'm sorry to post a feature request, but will it be possible to change the existing power micro USB connector to a OTG connector (with data lines) ? So it would be possible to run the 3A+ without an SD card, like the Pi Zero does. It is already possible to boot a 3A+ without an SD Card like one can...
by hippy
Fri Dec 14, 2018 10:06 am
Forum: Python
Topic: Two different standards of programming in effect
Replies: 9
Views: 250

Re: Two different standards of programming in effect

I was able to boot the program from the console using: "python /home/pi/mypigraphics/new_graphics.py" BUT this produces an error about tkinter. I gave it a capital T and retried. The program booted BUT the shell objected to the capital T. If you are running one version with "python" as the command,...
by hippy
Thu Dec 13, 2018 8:38 pm
Forum: Off topic discussion
Topic: More printing on the Pi bottom please
Replies: 7
Views: 251

Re: More printing on the Pi bottom please

Why do you appear to have difficulty remembering that the power socket is the one closest to the corner or most far from the HDMI socket? Maybe because it's not something which is easily remembered ? I have to open the case my Pi is in or search the web to find which is which whenever my sticky lab...
by hippy
Thu Dec 13, 2018 8:32 pm
Forum: Other projects
Topic: Using Ras Pi as USB host and slave
Replies: 5
Views: 104

Re: Using Ras Pi as USB host and slave

That tutorial is flawed as it changes the contents of the MSD gagdet's storage while it's online with the host and forces a disconnect/reconnect on the host regardless of what the host is doing at the time. You're right. As far as I remember one has to have two directories, a Pi local directory whi...
by hippy
Thu Dec 13, 2018 5:55 pm
Forum: Other projects
Topic: Using Ras Pi as USB host and slave
Replies: 5
Views: 104

Re: Using Ras Pi as USB host and slave

A Pi can only be a host or slave USB device, not both together. You can use two Pi and link them via serial or other means, or add extra hardware to allow host and device ports, but you would likely still have problems trying to have two sides accessing the same Mass Storage Device file system. I tr...
by hippy
Thu Dec 13, 2018 5:43 pm
Forum: Advanced users
Topic: Wake from halt when gadget booted?
Replies: 5
Views: 143

Re: Wake from halt when gadget booted?

You are right it does seem to be responding in the halt state. I have only used rpiboot from Windows, and not booting Raspbian, so behaviour may well be different depending on what's used, what's booted, what is running after boot.
by hippy
Thu Dec 13, 2018 4:21 pm
Forum: Troubleshooting
Topic: Pi Zero stuck on boot and get hot
Replies: 2
Views: 69

Re: Pi Zero stuck on boot and get hot

It's not dead because it's doing something. Might be worth trying without the camera in case that's causing the problem. Things usually only get hot when there's a short or something is trying to draw too much current. It might die however if that isn't resolved.
by hippy
Thu Dec 13, 2018 4:12 pm
Forum: Beginners
Topic: I know absolutely nothing whatsoever. What now?!
Replies: 21
Views: 484

Re: I know absolutely nothing whatsoever. What now?!

I think that when you start looking rounbd it gets far less intimidating and am very much looking forward to buying a few components and fiddling with the IO I think you are well on your way and have got over any initial hesitation, temporary 'fear', uncertainty or lack of confidence there may have...
by hippy
Thu Dec 13, 2018 3:42 pm
Forum: Advanced users
Topic: Wake from halt when gadget booted?
Replies: 5
Views: 143

Re: Wake from halt when gadget booted?

I guess it depends on what you mean by halted. When a Pi Zero powers-on or resets without a bootable SD Card fitted it goes into a USB Device Boot mode which allows a suitable bootcode.bin to be injected into it from the PC. Once that's done it switches to a slightly different USB mode which causes ...
by hippy
Mon Dec 10, 2018 10:03 pm
Forum: Python
Topic: Upgrade Python from 3.5.3 to latest version
Replies: 15
Views: 314

Re: Upgrade Python from 3.5.3 to latest version

Some time ago following these instructions for installing version 3.6.0 worked for me - https://bohdan-danishevsky.blogspot.com/2017/01/building-python-360-on-raspberry-pi-3.html cd ~ wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz tar -zxvf Python-3.6.0.tgz cd Python-3.6.0 ./configure...
by hippy
Mon Dec 10, 2018 12:58 pm
Forum: Off topic discussion
Topic: Travel bag for Pi 3 B+
Replies: 3
Views: 83

Re: Travel bag for Pi 3 B+

I would definitely recommend plywood and aluminium clad cases. They come in a variety of sizes and shapes; camera cases, tool cases, make-up cases ( squarer ), even backgammon sets ( long and thin ). They are incredibly robust, not usually overly heavy, and often remarkably cheap when found second-h...
by hippy
Mon Dec 10, 2018 12:22 pm
Forum: Off topic discussion
Topic: Server Pi
Replies: 21
Views: 421

Re: Server Pi

Creating a "wish list" or "feedback" section in the forum would probably go a long way to improving the current situation. That would give somewhere for people to post, somewhere to move such posts to, while giving easy access to them when the Foundation are looking at what people have wished for.
by hippy
Mon Dec 10, 2018 12:18 pm
Forum: Off topic discussion
Topic: Server Pi
Replies: 21
Views: 421

Re: Server Pi

After 15 as an "IT Repair and Installation" life it beggars belief what some people think is reasonable or cost effective or even should be considered perfectly feasible on a minuscule budget. That's what I mean about presuming to speak on behalf of the Foundation. It is up to them to decide what i...
by hippy
Mon Dec 10, 2018 11:56 am
Forum: Off topic discussion
Topic: Server Pi
Replies: 21
Views: 421

Re: Server Pi

there are so many off the wall wish lists popping up here, like this opening post, it's not reasonable to expect the Pi folks to enter into a lengthy debate about all of them. Indeed; "Thanks for your input; we'll bear it in mind. Locked" is good enough. The problem I would say is that there doesn'...
by hippy
Mon Dec 10, 2018 11:20 am
Forum: Off topic discussion
Topic: Server Pi
Replies: 21
Views: 421

Re: Server Pi

Speculation is seen as offensive to the RPF By whom; the Foundation or others presuming to speak on behalf of the Foundation? I don't see why speculation should be seen as "offensive" unless the Foundation are unwilling to listen to what their customers and potential customers have to say. And that...
by hippy
Sun Dec 09, 2018 4:25 pm
Forum: Python
Topic: Daylight Hours
Replies: 18
Views: 1369

Re: Daylight Hours

Is it possible to really simplify this program to give me just: daylight = 0 or daylight = 1. I'm not familiar with that module bit it appears to me that the start and end of daylight for the day is given by ephem.localtime(civil_start) and ephem.localtime(civil_end) so would guess something like -...
by hippy
Sun Dec 09, 2018 3:51 pm
Forum: General discussion
Topic: My RPi model B+ won't turn on, is there any way to revive it?
Replies: 19
Views: 482

Re: My RPi model B+ won't turn on, is there any way to revive it?

for the average person the PI has no repairable parts...... :roll: The average person many not be able to carry out a repair themselves but that's very different to saying "there are no repairable parts". Saying that gives a misleading impression that the Pi could not be repaired even if someone we...
by hippy
Sat Dec 08, 2018 11:59 pm
Forum: General discussion
Topic: My RPi model B+ won't turn on, is there any way to revive it?
Replies: 19
Views: 482

Re: My RPi model B+ won't turn on, is there any way to revive it?

If your PI is really broken *nothing* will revive it, (there are no repairable parts) That not strictly correct - There are many repairable parts and people have replaced parts and had their Pi work again. It does of course depend on what parts are broken and it's not necessarily easy to do repairs...
by hippy
Sat Dec 08, 2018 9:10 pm
Forum: Troubleshooting
Topic: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up
Replies: 11
Views: 275

Re: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up

@jamesh Are you, and on behalf of RPF, disputing the "it should not" part of hippy's statement "This is known to kill the regulator on a Pi3B+, it should not, .."? I'm not sure where I made that statement or if I used those words exactly, but it's a reasonable paraphrasing of my view even if I did ...
by hippy
Sat Dec 08, 2018 8:44 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3 A+ won't boot with Adafruit Motor Hat on
Replies: 5
Views: 124

Re: Raspberry Pi 3 A+ won't boot with Adafruit Motor Hat on

It's very frustrating, but it looks like the Pi 3 A+ has the same problem with the 3.3V power supply. :roll: I mentioned it in another thread yesterday and got the following reply ... In some cases it is reported that attaching HAT's or external circuits which use the 3B+'s 3V3 rail prevents bootin...
by hippy
Sat Dec 08, 2018 1:44 pm
Forum: General discussion
Topic: How to read weather station sensor over 433MHz?
Replies: 17
Views: 438

Re: How to read weather station sensor over 433MHz?

No wonder car thieves can easily record keys in parking lots and then open the cars. "Replay attack" is what we are relying on for using weather station or alarm sensors in our projects though usually in terms of receiving rather than sending - when that can be made to work. Consistency of data bit...
by hippy
Fri Dec 07, 2018 9:23 pm
Forum: HATs and other add-ons
Topic: PoE Port Expansion
Replies: 7
Views: 162

Re: PoE Port Expansion

So I guess the only reason I got the HAT was just to have an Ethernet port to begin with. The Official Raspberry Pi PoE HAT doesn't provide an ethernet port. The ethernet port is on the Pi board itself. The PoE HAT merely allows PoE power to be injected into that port and used to power the Pi board...
by hippy
Fri Dec 07, 2018 3:01 pm
Forum: General discussion
Topic: Complements to RPiT
Replies: 21
Views: 573

Re: Complements to RPiT

so hats off to RPiT for an extraordinary job with this design, especially with the thermal distrabution and dissapation. It is an impressive bit of kit overall. The only notable issue seems to be that the PMIC used in the 3B+ results in it not being as robust as previous Pi when it comes to the Pi ...

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