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by gordon77
Wed Jun 03, 2020 1:21 pm
Forum: General discussion
Topic: Raspberrypi communicate with arduino
Replies: 4
Views: 137

Re: Raspberrypi communicate with arduino

Here's an example using usb connection

viewtopic.php?t=252930
by gordon77
Wed Jun 03, 2020 6:18 am
Forum: Troubleshooting
Topic: intermittent keyboard with latest OS ?
Replies: 10
Views: 260

Re: intermittent keyboard with latest OS ?

Another discovery... my keyboard settings seemed odd. Using raspi-config to reset it to a standard 104 key english keyboard seems to have stopped some of the odd behaviour. For example I once again have a behaving backspace key. I am absolutely sure I did not mess with the keyboard setup and have n...
by gordon77
Tue Jun 02, 2020 5:32 pm
Forum: Camera board
Topic: Which sony IMX sensor is the best for low light?
Replies: 9
Views: 180

Re: Which sony IMX sensor is the best for low light?

HermannSW wrote:
Tue Jun 02, 2020 5:07 pm
gordon77 wrote:
Tue Jun 02, 2020 5:04 pm
Sony IMX224MQV ?
How does that relate to OP "I want to connect it to the RaPi 4b" statement?
They will need to solve how to do that , even if possible. As said only limited sensors supported currently by the pi.
by gordon77
Tue Jun 02, 2020 6:11 am
Forum: Troubleshooting
Topic: intermittent keyboard with latest OS ?
Replies: 10
Views: 260

Re: intermittent keyboard with latest OS ?

HawaiianPi wrote:
Mon Jun 01, 2020 8:50 pm
Try it with the dongle on a USB extension cable to see if it fixes the problem. That way we'll at least know if it's interference or not.
Will do. I'm not using usb3
by gordon77
Mon Jun 01, 2020 7:57 pm
Forum: Troubleshooting
Topic: intermittent keyboard with latest OS ?
Replies: 10
Views: 260

Re: intermittent keyboard with latest OS ?

I starting seeing odd wireless keyboard behaviour after updating this weekend. At first I just thought it was low batteries, and replaced them. The symptoms were missing characters, odd cursor movements (usually jumping backwards in the text), and some freezes. Replacing the batteries seemed to hel...
by gordon77
Mon Jun 01, 2020 4:00 pm
Forum: Troubleshooting
Topic: intermittent keyboard with latest OS ?
Replies: 10
Views: 260

intermittent keyboard with latest OS ?

Since upgrading to the latest 32bit Raspian OS my wireless keyboard has become intermittent, mouse appears OK.

Tried another wireless keyboard , same issue.

Anyone else found this ?
by gordon77
Mon Jun 01, 2020 3:07 pm
Forum: Python
Topic: simple arrays... how to?
Replies: 5
Views: 133

Re: simple arrays... how to?

x=2 data =[0] * 4 data[1] = 7.5 data[2] = 10 data[3] = 4 print(data[x]) That first line data=[0]*4 (defining the depth of the list or array) was what I was missing. Thank you!!! Yes, you need to setup an array before you can change its contents, or you could data.append to add more entries.
by gordon77
Mon Jun 01, 2020 1:59 pm
Forum: Python
Topic: simple arrays... how to?
Replies: 5
Views: 133

Re: simple arrays... how to?

try...

Code: Select all

x=2

data =[0,7.5,10,4]


print(data[x])
or

Code: Select all

x=2

data =[0] * 4
data[1] = 7.5
data[2] = 10
data[3] = 4


print(data[x])
by gordon77
Mon Jun 01, 2020 1:27 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 567

Re: No analog sound on Pi4 kernel 4.19.118

Interestingly when I do a new 32bit full install I get 'analog' but when I did a full upgrade, from the Feb 2020 Raspbian I get 'AV Jack'.

With the Feb 2020 raspbian it was 'analog', the new 64bit Raspbian OS beta also shows as 'AV Jack'
by gordon77
Sun May 31, 2020 7:04 pm
Forum: Graphics, sound and multimedia
Topic: Looking for a 26-pin stereo AMP HAT
Replies: 12
Views: 340

Re: Looking for a 26-pin stereo AMP HAT

The spec says "Onboard power amplifier (Class D) for external loudspeakers, with connection to an external power source" Fair enoug. I withdraw my comment abotu it only having line out. And it says "Only for Raspberry Pi A or Raspberry Pi B, " There were several revisions of the 1B. Some have the P...
by gordon77
Sun May 31, 2020 6:39 pm
Forum: Graphics, sound and multimedia
Topic: Looking for a 26-pin stereo AMP HAT
Replies: 12
Views: 340

Re: Looking for a 26-pin stereo AMP HAT

This is the only one l could find googling... https://www.amazon.co.uk/dp/B01GBJQMGO?tag=stucuk-21&tag=stucuk-21&linkCode=osi&th=1&psc=1&ascsubtag=5ed3c51ceba0c919e85bbb12 https://www.reichelt.com/gb/en/raspberry-pi-shield-audio-card-26-pin-gpio-wm8804-wm7220-rasp-wolf-audio-p142942.html?PROVID=278...
by gordon77
Sun May 31, 2020 5:04 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 567

Re: No analog sound on Pi4 kernel 4.19.118

gordon77 wrote:
Sun May 31, 2020 4:51 pm
ejolson wrote:
Sun May 31, 2020 4:46 pm

Are you using the 4.19.118 kernel that this post refers to?
Possibly not. :roll: l was commenting mainly on Bluetooth which they had issues with, and l did until recently.
Just checked and using Linux kernel 4.19.118, and all works as I said. :D
by gordon77
Sun May 31, 2020 4:51 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 567

Re: No analog sound on Pi4 kernel 4.19.118

This may not help but here's my experience with my Pi4. I simply right click on the loudspeaker icon on the gui and choose analog (now AV jack after latest update) or any Bluetooth l have added. To add devices click on Bluetooth icon and choose add devices, now this is where it can take a long time...
by gordon77
Sun May 31, 2020 4:41 pm
Forum: General discussion
Topic: No analog sound on Pi4 kernel 4.19.118
Replies: 17
Views: 567

Re: No analog sound on Pi4 kernel 4.19.118

This may not help but here's my experience with my Pi4. I simply right click on the loudspeaker icon on the gui and choose analog (now AV jack after latest update) or any Bluetooth l have added. To add devices click on Bluetooth icon and choose add devices, now this is where it can take a long time ...
by gordon77
Sun May 31, 2020 2:56 pm
Forum: Graphics, sound and multimedia
Topic: Looking for a 26-pin stereo AMP HAT
Replies: 12
Views: 340

Re: Looking for a 26-pin stereo AMP HAT

This is the only one l could find googling... https://www.amazon.co.uk/dp/B01GBJQMGO?tag=stucuk-21&tag=stucuk-21&linkCode=osi&th=1&psc=1&ascsubtag=5ed3c51ceba0c919e85bbb12 https://www.reichelt.com/gb/en/raspberry-pi-shield-audio-card-26-pin-gpio-wm8804-wm7220-rasp-wolf-audio-p142942.html?PROVID=2788...
by gordon77
Sat May 30, 2020 12:03 pm
Forum: Python
Topic: Why does this lock up / crash the Pi ?
Replies: 13
Views: 554

Re: Why does this lock up / crash the Pi ?

Thanks for the reply.

I was really looking for a method of sending parameters to raspistill whilst it's running as a subprocess.

I am now using picamera and threads.
.
by gordon77
Fri May 29, 2020 1:12 pm
Forum: Beginners
Topic: Stand alone music player
Replies: 267
Views: 6936

Re: Stand alone music player

If you want to make your own thread, including a copy of the script, and I will amend the 'master' and post on my github.

Latest version is v15.25.

I have checked it working with the new 64bit Raspberry OS, the only change was it reports 'Headphones' for analog audio, so l added that.
by gordon77
Thu May 28, 2020 4:33 pm
Forum: General discussion
Topic: Raspberry Pi OS (64 bit) beta test version
Replies: 76
Views: 4180

Re: Raspberry Pi OS (64 bit) beta test version

gordon77 wrote:
Thu May 28, 2020 4:20 pm
gordon77 wrote:
Thu May 28, 2020 3:08 pm
gsh wrote:
Thu May 28, 2020 2:55 pm


Are you sure you're using the latest version (should say v1.2 in the taskbar)
What operating system are you using?


installed v1.2 now, and trying again
Fixed, thanks. Maybe remind others to use v1.2.
by gordon77
Thu May 28, 2020 4:20 pm
Forum: General discussion
Topic: Raspberry Pi OS (64 bit) beta test version
Replies: 76
Views: 4180

Re: Raspberry Pi OS (64 bit) beta test version

gordon77 wrote:
Thu May 28, 2020 3:08 pm
gsh wrote:
Thu May 28, 2020 2:55 pm
gordon77 wrote:
Thu May 28, 2020 2:28 pm
I've downloaded the 64bit beta, tried 2 cards, Sandisk Ultra 128GB and 32GB, using Pi Imager, both fail verification.
Are you sure you're using the latest version (should say v1.2 in the taskbar)
What operating system are you using?
Fixed, thanks

installed v1.2 now, and trying again
by gordon77
Thu May 28, 2020 3:08 pm
Forum: General discussion
Topic: Raspberry Pi OS (64 bit) beta test version
Replies: 76
Views: 4180

Re: Raspberry Pi OS (64 bit) beta test version

gsh wrote:
Thu May 28, 2020 2:55 pm
gordon77 wrote:
Thu May 28, 2020 2:28 pm
I've downloaded the 64bit beta, tried 2 cards, Sandisk Ultra 128GB and 32GB, using Pi Imager, both fail verification.
Are you sure you're using the latest version (should say v1.2 in the taskbar)
What operating system are you using?
installed v1.2 now, and trying again
by gordon77
Thu May 28, 2020 2:28 pm
Forum: General discussion
Topic: Raspberry Pi OS (64 bit) beta test version
Replies: 76
Views: 4180

Re: Raspberry Pi OS (64 bit) beta test version

I've downloaded the 64bit beta, tried 2 cards, Sandisk Ultra 128GB and 32GB, using Pi Imager, both fail verification.
by gordon77
Thu May 28, 2020 1:03 pm
Forum: Raspberry Pi OS
Topic: Raspberry Pi Os For pi4 8GB
Replies: 6
Views: 361

Re: Raspberry Pi Os For pi4 8GB

rpiMike wrote:
Thu May 28, 2020 11:27 am
From Eben in the blog comments:
From memory:

USB-C compatibility fix
Moved WLCSP component to top side for robustness
Silk screen changes for manufacturability
Silk screen changes for compliance marking
cheers

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