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by MrGreg
Fri Dec 31, 2021 4:24 pm
Forum: General
Topic: #2 SPI pins on Pico - Arduino
Replies: 0
Views: 110

#2 SPI pins on Pico - Arduino

Recently started playing with Pico, both SDK & Arduino. So this is a Hint - FYI thing While wrestling with trying to get the SPI working in Arduino and doing some several interweb searches, kept coming up with this: https://forums.raspberrypi.com/viewtopic.php?t=301247 Said; Re: SPI pins on pico...
by MrGreg
Thu Nov 25, 2021 5:20 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

There is no difference. diff is saying there is a missing newline on line 7 of BullseyeOrigKMS-EDID.txt which would be due to how you created the file. It isn't part of the EEPROM contents. The 7c7 is output by diff and means something on input/output file line 7 was changed. That line would be the...
by MrGreg
Thu Nov 25, 2021 4:17 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

Yes both same monitor & hardware.
Only change is Bullseye Orig KMS and modification to FKMS in config.txt

Subtle difference in the way it is read perhaps or something else?

Cheers
MrGreg
by MrGreg
Thu Nov 25, 2021 2:13 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

MrGreg wrote: ↑ Thu Nov 25, 2021 11:31 am This from Bulseye fkms Code: Select all pi@rpi4-2:~ $ base64 /sys/class/drm/card0-HDMI-A-1/edid AP///////wBMLbgMTUdaWgMaAQOANB14Kn3RpFZQoSgPUFS/74BxT4HAgQCBgJUAqcCzAAEBAjqA GHE4LUBYLEUACSUhAAAeAR0AclHQHiBuKFUACSUhAAAeAAAA/QAySx5REQAKICAgICAgAAAA/ABT MjRFNjUw...
by MrGreg
Thu Nov 25, 2021 10:31 am
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

This from Bulseye fkms pi@rpi4-2:~ $ base64 /sys/class/drm/card0-HDMI-A-1/edid AP///////wBMLbgMTUdaWgMaAQOANB14Kn3RpFZQoSgPUFS/74BxT4HAgQCBgJUAqcCzAAEBAjqA GHE4LUBYLEUACSUhAAAeAR0AclHQHiBuKFUACSUhAAAeAAAA/QAySx5REQAKICAgICAgAAAA/ABT MjRFNjUwCiAgICAgAQoCAxrxRpAEHxMSAyMJBweDAQAAZgMMABAAgAEdALxS0B4guCh...
by MrGreg
Wed Nov 24, 2021 10:46 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

Hello Robp Yes, that solves the symptom for me. HDMI sound is back and now working with fake KMS Good to know it's not a problem peculiar to my monitor, and others are similarly affected. Not ideal , but V pleased it's working I hope this interim quick & dirty fix points the way to a solution fo...
by MrGreg
Mon Nov 22, 2021 8:41 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

A little more info on the HDMI loss of sound. I have attached the human readable edid-decode from the working Buster version and the not working Bullseye version. They both look similar Re the audio content. So guess the EDID is being read correctly? Something else in Bullseye inhibiting it? BusterE...
by MrGreg
Mon Nov 22, 2021 12:20 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

pi@rpi4-2:~ $ base64 /sys/class/drm/card0-HDMI-A-1/edid AP///////wBMLbgMTUdaWgMaAQOANB14Kn3RpFZQoSgPUFS/74BxT4HAgQCBgJUAqcCzAAEBAjqA GHE4LUBYLEUACSUhAAAeAR0AclHQHiBuKFUACSUhAAAeAAAA/QAySx5REQAKICAgICAgAAAA/ABT MjRFNjUwCiAgICAgAQoCAxrxRpAEHxMSAyMJBweDAQAAZgMMABAAgAEdALxS0B4guChVQAklIQAA HowK0JAgQDEgD...
by MrGreg
Mon Nov 22, 2021 11:52 am
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

Re: STICKY: Bullseye - Comments and bug reports thread. Quote jamesh Post by jamesh » Mon Nov 22, 2021 10:28 am MrGreg wrote: ↑ Sun Nov 21, 2021 3:39 pm Confirming a couple of bugs mentioned earlier; 1. Having VNC server enabled apparently screws up the display. Lost all display(s) except console a...
by MrGreg
Sun Nov 21, 2021 2:39 pm
Forum: Raspberry Pi OS
Topic: STICKY: Bullseye - Comments and bug reports thread.
Replies: 677
Views: 47136

Re: STICKY: Bullseye - Comments and bug reports thread.

Confirming a couple of bugs mentioned earlier; 1. Having VNC server enabled apparently screws up the display. Lost all display(s) except console after a change of monitor. this seems to have corrected after VNC server disabled. 2. No sound over HDMI. All worked(s) fine with same hardware in Buster. ...
by MrGreg
Tue May 14, 2019 10:30 pm
Forum: Other projects
Topic: stepper motors rattling
Replies: 4
Views: 1659

Re: stepper motors rattling

The symptoms you describe looks like supply rail noise problem. The noise is actually caused by the stepper motor. It occurs with varying intensity related to the stepper speed (pulse rate - frequency ) A solution for this problem would be to put a capacitor between Gnd and Vmot as close as possible...
by MrGreg
Mon Oct 15, 2018 8:45 pm
Forum: Automation, sensing and robotics
Topic: 1945 Craftsman lathe CNC Conversion
Replies: 7
Views: 2417

Re: 1945 Craftsman lathe CNC Conversion

I am not too familliar with exactly what a " Craftsman 101.07403 lathe" is, but I understand it is about 12" hobby type machine? Yes? Or is it something else? One of the first things to do is choose a suitable stepper motor. Nema xx is a motor frame size specification. it does not tel...
by MrGreg
Wed Oct 10, 2018 7:01 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 404354

Re: LinuxCNC

Errrr... No Those instructions were for Raspbian Jessie only and are now rather outdated. Raspbian Jessie is still useable. I am still running Jessie on my cnc setup, although it is for cnc only and not for general use, eg anything to do with the www or other activities likely to comprimise security...
by MrGreg
Thu Oct 04, 2018 1:28 pm
Forum: Automation, sensing and robotics
Topic: Adjustable Photodiode input
Replies: 2
Views: 898

Re: Adjustable Photodiode input

Ideally you prob want to post this problem on an electronics forum. However I will suggest how you may go about doing this without getting into detail. You will likely need to up your game on the electronics side though? So... Suggest you pulse the laser with a square wave 50% duty cycle at a standa...
by MrGreg
Fri Aug 24, 2018 5:12 pm
Forum: Automation, sensing and robotics
Topic: Universal G-Code sender on Rpi3
Replies: 5
Views: 22296

Re: Universal G-Code sender on Rpi3

You might find bCNC runs much better on the RPi. It is python based and is much the same as UGS in both style, function and GUI interface UGS is java based and can have problems with the backplot visualiser. There is also a launcher in the bCNC Master folder ( bCNC with a cog icon) https://github.co...
by MrGreg
Tue May 29, 2018 9:11 pm
Forum: Automation, sensing and robotics
Topic: Sending G-code to a TinyG v8
Replies: 2
Views: 1239

Re: Sending G-code to a TinyG v8

You want to be in the same directory as the location of the file for the command to work. I'm guessing you were in your home directory Eg "pi" So.. cd into Desktop ( where your .txt file is) from console ( command line terminal) ...and try it again Might find this helpful for useful comman...
by MrGreg
Sun Apr 29, 2018 10:50 am
Forum: Automation, sensing and robotics
Topic: Universal G-Code Sender - Visualizer
Replies: 2
Views: 3637

Re: Universal G-Code Sender - Visualizer

UGS is java based and does not play well with the RPI.
Try this

https://github.com/vlachoudis/bCNC

It is almost identical to UGS but is Python based and runs well on the RPi
by MrGreg
Sun Apr 01, 2018 11:26 am
Forum: Automation, sensing and robotics
Topic: LinuxCNCPi - and Board
Replies: 4
Views: 5636

Re: LinuxCNCPi - and Board

That's quite a "Wish List" If you have not already seen this, A good place to start....... https://www.raspberrypi.org/forums/viewtopic.php?f=37&t=33809 The above setup runs fine for me, although not quite meeting your prescriptive ideal. Currently only Jessie supported out of the box....
by MrGreg
Sat Feb 03, 2018 7:33 pm
Forum: Automation, sensing and robotics
Topic: Automatic bartender
Replies: 7
Views: 2445

Re: Automatic bartender

I don´t really understand it, especially how BT communication works.
I guess you better get aquainted with Arduino Bluetooth comms then......

This might help

http://www.martyncurrey.com/
by MrGreg
Fri Feb 02, 2018 12:33 am
Forum: Automation, sensing and robotics
Topic: Automatic bartender
Replies: 7
Views: 2445

Re: Automatic bartender

I think you can use what you have already got. (might be a bit too easy though?....And no RPI) Firstly your Arduino needs to be a genuine or near perfect clone running at 16Mhz. There are many clones that only run at 12Mhz which cause all sorts of problems and wont work properly. Load GRBL onto the ...
by MrGreg
Thu Feb 01, 2018 8:09 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 404354

Re: LinuxCNC

It's all a little out of date.... The following should work OK Take a look here for the Machinekit and RT inatall http://www.machinekit.io/docs/getting-started/installing-packages/ Also read through the "For Starters" links on the left of the page for more general background info. Also FYI...
by MrGreg
Wed Jan 24, 2018 11:32 pm
Forum: Automation, sensing and robotics
Topic: Machinekit crashes in config selection
Replies: 3
Views: 1637

Re: Machinekit crashes in config selection

If you want an "out of the box" working solution from Machinekit then you will want to be using Jessie. If you go for Stretch, then you will be presented with a repo of thousands of RT kernel options. I have no idea which, if any, work?! Suggest you check out the Machinekit install guides ...
by MrGreg
Tue Jan 23, 2018 9:47 pm
Forum: Automation, sensing and robotics
Topic: Machinekit crashes in config selection
Replies: 3
Views: 1637

Re: Machinekit crashes in config selection

I guess you are trying to get Machinekit running on the old RPIv1B. It does work OK but the Axis GUI is rather slow and notchy. The xenomai version runs much better than the RT version. The Mini gui interface is quicker, but can leak memory over a few hours You don't need to compile it, there are bu...
by MrGreg
Wed Jul 27, 2016 9:22 pm
Forum: Automation, sensing and robotics
Topic: LinuxCNC
Replies: 1021
Views: 404354

Re: LinuxCNC

Using Linux CNC <aka Machinekit>on an RPI for gcode simulation is like using a sledgehammer to crack a peanut... Ha Ha.! This is a suggestion, not a recommendation... Type "gcode simulation" into the Add / Remove software (Main Menu - Preferences) There are a few to choose from, "yagv...
by MrGreg
Fri May 20, 2016 8:54 pm
Forum: Troubleshooting
Topic: RPi3 Wifi problem & Onenine case
Replies: 0
Views: 611

RPi3 Wifi problem & Onenine case

There would seem to be a problem with the Oneninedesign (RPI2) case breaking the RPI3 Wifi hardware circuit. RPI3 wifi large.jpg This is a view of the problem area. The circuit from the wifi chip (the black thing next to the SD card) goes to the filter (White thing with spot on it) via a couple of r...

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