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Re: Looking for a good power supply that will handle a load
Mack Edmonson
Voltage drop across the power connector also.
toggle quoted messageShow quoted text
Mack W4ENN
On Mar 30, 2020, at 10:44 PM, Bo W4GHV <bobarr@...> wrote:
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Re: Looking for a good power supply that will handle a load
Ray Cadmus
Try canakit.com. I've bought a couple of their full sets but they offer bits and pieces as well. Just works. Regards, Ray W9EUM
On Mon, Mar 30, 2020 at 10:44 PM Bo W4GHV <bobarr@...> wrote: I found the problem to be the voltage drop in the usb cable. I tried several until I found one that put at least 4.7v at the pi. The wire in those cables is tiny.
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Re: Looking for a good power supply that will handle a load
Bo W4GHV
I found the problem to be the voltage drop in the usb cable. I tried several until I found one that put at least 4.7v at the pi. The wire in those cables is tiny.
-- 73, Bo W4GHV since '54
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Re: APRS-IS passes weather, RF does not
Direwolf uses wxnow.txt
On Mon, Mar 30, 2020, 12:19 PM Bill WA4OPQ <wa4opq@...> wrote:
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Re: APRS-IS passes weather, RF does not
Max, Thanks for the idea. I think that's the way to really know what's going on. I used to have easy access to logic analyzers and quite an assortment of test equipment. Then I retired and moved away. <sigh>
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Re: APRS-IS passes weather, RF does not
Max
A small logic analyzer would be almost perfect connected to the serial signal from the pi going to the tnc. You still have to do some manual decoding but the payload of a kiss frame is in plain text. The analyzer I used was the smallest one made by Saleae . Using this allowed me to determine at least where the problem was. If this is on a Pi4 then configure one of the extra serial ports (I think it has five or six but only four a usable at a time due to other conflicts) and connect the output of the serial port connected to the tnc to the input of the extra serial port, then run one of the serial decoders to show the hex and ascii values of your data. Even if you don't know what you're looking at, you should notice a big difference in a good / bad frame. I currently have one of the small bluetooth to serial converters connected much the same way to my pi/tncPi. I connect to it using a table and run AprsDroid. By moving one wire I can see the output of the tnc or the Pi but not both. Maybe I at least gave you some ideas. Max KG4PID
On Monday, March 30, 2020, 11:19:43 AM CDT, Bill WA4OPQ <wa4opq@...> wrote:
Another couple of days of troubleshooting shows the following: 1) It might be the TNC or it might be the APRS client (YAAC). I need to find another client that uses wxnow.txt to determine. 2) It only affects the transmit, so if I put the 9k6 TNC on the iGate and the Pi-TNC on the remote digipeater the data makes it to APRS-IS. 3) However, this workaround is not reliable. The weather data makes it through about 60% of the time. That's a whole new can of worms.
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Re: APRS-IS passes weather, RF does not
Another couple of days of troubleshooting shows the following: 1) It might be the TNC or it might be the APRS client (YAAC). I need to find another client that uses wxnow.txt to determine. 2) It only affects the transmit, so if I put the 9k6 TNC on the iGate and the Pi-TNC on the remote digipeater the data makes it to APRS-IS. 3) However, this workaround is not reliable. The weather data makes it through about 60% of the time. That's a whole new can of worms.
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Re: Back Pi Image and Clone SD Card
Max
I remember reading a post written by an ex Microsoft QA Tester. His said the company had almost completely eliminated QA. We all became the testers. Max KG4PID
On Monday, March 30, 2020, 08:22:58 AM CDT, Walter <w9kjo@...> wrote:
On Sun, Mar 29, 2020 at 08:50 AM, Mike Erstad wrote: Walter you sound like me..... I was a certified Apple Technician for many years but also had to service PC's for my job.... My Windows 7 started locking and freezing up so I found the CD's that came with it and they were Windows 8.... Installed and ended up with these great big colored icons to do different things...after figuring out how to make it look more like windows 7 I was much happier and it works very well now...If it were only the learning curve. The big problem with Windows 10 are that the updates keep affecting things in such negative ways. Windows 10 needs to get themselves under control. They just have way too many engineers and clearly no accountability. When you post your problem on the Windows 10 forum windows people never respond its all volunteers and the volunteers usually give you bad info. -- In Christ, Until He Come, Perhaps Today . . . 73 Walter Huyck W9KJO
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Re: Back Pi Image and Clone SD Card
Chuck M
If you have a 3D printer available, consider something like this for storing micro SD cards.
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Micro SD Card Holder by bgill
Printed a different one initially but may give this one a try. I use a Sharpie to ID my cards with a letter, then keep a notebook to log what's on each card. 73s, Chuck KD9DVB
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Re: Back Pi Image and Clone SD Card
Walter
On Sun, Mar 29, 2020 at 08:50 AM, Mike Erstad wrote:
Walter you sound like me..... I was a certified Apple Technician for many years but also had to service PC's for my job.... My Windows 7 started locking and freezing up so I found the CD's that came with it and they were Windows 8.... Installed and ended up with these great big colored icons to do different things...after figuring out how to make it look more like windows 7 I was much happier and it works very well now...If it were only the learning curve. The big problem with Windows 10 are that the updates keep affecting things in such negative ways. Windows 10 needs to get themselves under control. They just have way too many engineers and clearly no accountability. When you post your problem on the Windows 10 forum windows people never respond its all volunteers and the volunteers usually give you bad info. -- In Christ, Until He Come, Perhaps Today . . . 73 Walter Huyck W9KJO
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Re: Back Pi Image and Clone SD Card
Walter
On Sun, Mar 29, 2020 at 11:06 AM, james wrote:
I have etcher as well a recent download. I would not work after the last update either. Both etcher and Win32DiscImager are running in Window7 capability mode So your assumptions about etcher are not correct. Sad to say -- In Christ, Until He Come, Perhaps Today . . . 73 Walter Huyck W9KJO
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Re: Back Pi Image and Clone SD Card
Craig Davidson
I store my micro SD cards in the adapter and then use tape to attach
toggle quoted messageShow quoted text
the adapter to a large piece of paper with hand written notes as to the contents of the SD memory card
On 3/29/20, Max via Groups.Io <kg4pid=yahoo.com@groups.io> wrote:
I wonder why this is so slow? But I'm sure not going to tie up an extra uSD
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Re: Back Pi Image and Clone SD Card
David Ranch
It all comes down to the details: - Is he using faster micro-SD cards? - Is he using a USB 3.1 card reader that also supports reading faster cards? - He's not leveraging larger block sizes (dd bs=1M) I personally use local backups to image files as well but I also do: - Fill the SD card with a file of all-zeros to clear out all deleted files to make it more compressible - use multi-threaded pxz to create an XZ compressed file of the image (damn slow but very small) I have a script for this if anyone is interested. From within this script, I have this reminder: -- echo -e " Expected compression for a 15.5GB source SD card is down to 877MB assuming cleanups and zeroize was done\n" -- --David KI6ZHD
On 03/29/2020 08:25 AM, Max via
Groups.Io wrote:
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Re: Back Pi Image and Clone SD Card
Max
I wonder why this is so slow? But I'm sure not going to tie up an extra uSD card for every one of my pi's. Want another backup, buy another card. This would get expensive. And they are so small they are hard to label as to what they are for. Ever dropped one? They are easy to loose. Max KG4PID
On Saturday, March 28, 2020, 09:53:56 PM CDT, Craig Davidson <k1bdx.craig@...> wrote:
I have been making copies of my SD cards with the Debian Linux DD command I plug a blank SD card into a USB adapter plugged into the pi then run this command dd if=/dev/mmcblk0 of=/dev/sda a 4 gig card takes about 17 minutes to copy a 16 gig card takes 1 hour 15 minutes. Here is a link to a typical USB adapter. https://www.ebay.com/i/401830853171 I purchased a 10 pack of sandisk 16 gig SD cards and a USB adapter came with the purchase. On 3/28/20, Mark Griffith via Groups.Io <mdgriffith2003=yahoo.com@groups.io> wrote: > I installed Win32DiskImage on my Win10 laptop, and it worked just like it > should. > Sorry I can't help more. > MarkKD0QYN > > On Saturday, March 28, 2020, 10:09:10 AM CDT, Mark Griffith via > Groups.Io <mdgriffith2003=yahoo.com@groups.io> wrote: > > I have used Win32DiskImager many times to back my SD cards, but it was > always on Windows 7. I have a Windows 10 laptop, so perhaps I should try it > there and see how it goes. I'll try it today. > MarkKD0QYN > > On Saturday, March 28, 2020, 10:00:59 AM CDT, Walter <w9kjo@...> > wrote: > > I have used Win32DiskImager I dont know how may times to backup and clone > images. > > But today I spent an hour trying to get it to backup my image so I could > rewrite it to a larger SD card and all I get is "There is not enough room on > the drive" It is the whole hard drive in my PC, massive volume. I am > trying to write to am image I am creating on the hard Drive of my Windows 10 > PC. That is the probelm Windows 10; boy i hate windows 10. > > I have done this so many times I can count them, but it is not working > today. > > Can anyone tell me how to get this to work. Again I am trying to write the > image from my SD card to my harddrive to backup the image. > > Thanks for any help in advance > > 73 W9KJO > > -- > In Christ, Until He Come, Perhaps Today . . . > 73 > Walter Huyck > W9KJO > > > >
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Re: Back Pi Image and Clone SD Card
David Ranch
If you need to run WIndows, going back to Win7 is not great idea. You need those security updates to keep the Internet-version of COVID from spreading around. :-) --David KI6ZHD
On 03/29/2020 02:53 AM, Walter wrote:
I got it working. Win32 Disk Imager. I am running it in comparability mode for Windows 7.
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Re: Back Pi Image and Clone SD Card
james
walter download etcher on windows 10 then you well have no
problems
On 3/29/2020 2:53 AM, Walter wrote:
I got it working. Win32 Disk Imager. I am running it in comparability mode for Windows 7.
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Re: Back Pi Image and Clone SD Card
Mike Erstad
Walter you sound like me..... I was a certified Apple Technician for many years but also had to service PC's for my job.... My Windows 7 started locking and freezing up so I found the CD's that came with it and they were Windows 8.... Installed and ended up with these great big colored icons to do different things...after figuring out how to make it look more like windows 7 I was much happier and it works very well now...
Seems like when Windows comes out with a new O/S you have to learn something totally different.... not on a mac nor an Icom ham radio.. Good Luck and take your time....
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Re: Back Pi Image and Clone SD Card
Walter
I got it working. Win32 Disk Imager. I am running it in comparability mode for Windows 7.
Stupid Windows 10. Seriously considering rolling my PC back to Windows 7. Every update in Windows 10 brings new problems Thanks Everyone -- In Christ, Until He Come, Perhaps Today . . . 73 Walter Huyck W9KJO
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Re: Back Pi Image and Clone SD Card
Craig Davidson
I have been making copies of my SD cards with the Debian Linux DD command
I plug a blank SD card into a USB adapter plugged into the pi then run this command dd if=/dev/mmcblk0 of=/dev/sda a 4 gig card takes about 17 minutes to copy a 16 gig card takes 1 hour 15 minutes. Here is a link to a typical USB adapter. https://www.ebay.com/i/401830853171 I purchased a 10 pack of sandisk 16 gig SD cards and a USB adapter came with the purchase. On 3/28/20, Mark Griffith via Groups.Io <mdgriffith2003=yahoo.com@groups.io> wrote: I installed Win32DiskImage on my Win10 laptop, and it worked just like it
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Re: Back Pi Image and Clone SD Card
Mark Griffith
I installed Win32DiskImage on my Win10 laptop, and it worked just like it should. Sorry I can't help more. Mark KD0QYN
On Saturday, March 28, 2020, 10:09:10 AM CDT, Mark Griffith via Groups.Io <mdgriffith2003@...> wrote:
I have used Win32DiskImager many times to back my SD cards, but it was always on Windows 7. I have a Windows 10 laptop, so perhaps I should try it there and see how it goes. I'll try it today. Mark KD0QYN
On Saturday, March 28, 2020, 10:00:59 AM CDT, Walter <w9kjo@...> wrote:
I have used Win32DiskImager I dont know how may times to backup and clone images. But today I spent an hour trying to get it to backup my image so I could rewrite it to a larger SD card and all I get is "There is not enough room on the drive" It is the whole hard drive in my PC, massive volume. I am trying to write to am image I am creating on the hard Drive of my Windows 10 PC. That is the probelm Windows 10; boy i hate windows 10. I have done this so many times I can count them, but it is not working today. Can anyone tell me how to get this to work. Again I am trying to write the image from my SD card to my harddrive to backup the image. Thanks for any help in advance 73 W9KJO -- In Christ, Until He Come, Perhaps Today . . . 73 Walter Huyck W9KJO
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