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Re: Case Options

 

Thanks for that report, Bruce.

For those here in the US, I think the same buck converter is this one: ¡ª I¡¯m saving it in case the DockerPi doesn¡¯t work out.

That lovely case is about $50US, plus whatever shipping is required. Do you know if the vendor is going to offer the laser-cut lid for sale? I think that case might be very good for field use as opposed to a plastic case. But adequate ventilation is absolutely required in my area ¡ª northern Nevada desert where our summer high temperatures run in the 95F range.

The Pi4 here on my worktable is running at 55C-60C in the afternoons. My workroom is not air-conditioned, although there is a unit in the living room so it¡¯s a little cooler than outdoors in the sun. I have not taken a Pi4 into the field (yet), but am a little concerned about operating temperature.

Thanks again for good information.

73 de AG7TX

David Thompson, AG7TX
Jack of All Trades
Master of None
dbthompson@...

On Aug 21, 2020, at 02:36, g4abx <brucemacb@...> wrote:

All

I'm using the Pi Juice HAT and this case:

The case is very well made -- but a tad expensive!
it has one critical flaw -- its thermal performance is awful -- until that is, I added a fan.

Having talked through the thermal performance with the seller here in the UK, he offered to laser cut me a new lid with fan fixings. I'm waiting for that to arrive shortly.
If I'm happy with the new lid, then he will make these fan lids an option with the case.

Having mocked up a lid with a fan, after some experimentation with fan placement, the Pi temperature (measured from the PiJUice HAT battery temp sensor) dropped from 70c to 24c -- which is very acceptable. The fan placement ensures air circulation around the critical Pi components on the lower board -- as well as the battery on the PiJUice HAT.

One other mod you need to do to accept the PiJuice HAT is to remove the USB power socket from the board. All the connections are doubled up and I've added a pin header to connect power. (The USB connector protrudes beyond the board and this clashes with the fixings to case side dimensions.) I used a hot air tool to remove the USB socket. Be sure to cover the adjacent components in Kapton tape -- to prevent them flowing off the board when you apply heat! (Kapton tape is really cheap on eBay and being self adhesive is easy to use. It leaves no residue when removed)
This sounds daunting -- but its not. You do need a focussed nozzle on your hot air gun. Mine is about 8mm in diameter.

I've also included a really great buck converter inside the enclosure -- so my Pi can be fed with anything up to 18V. It also appears to be very RF quiet. I can't hear any interference under QRP conditions on my KX3 within the Amateur bands. I use:

By the way, the stock PiJuice battery gives me about 5 hours operation of the Pi4b and takes a bit of load off my 20AH Solar generator setup.

So the nice metal case with its new lid and fan is fed from 12V (from my Solar generator) and being aluminium, should be robust for portable operations.
73
Bruce G4ABX
Re: Build a Pi 3.0.3 Released

 

A reboot should clear up the conky issue. There was a change in the way conky is started in 3.0.3 but I don't think that should cause a freeze.

--
73, de KM4ACK
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Re: Case Options

 

All

I'm using the Pi Juice HAT and this case:?

The case is very well made -- but a tad expensive!
it has one critical flaw -- its thermal performance is awful -- until that is, I added a fan.

Having talked through the thermal performance with the seller here in the UK, he offered to laser cut me a new lid with fan fixings. I'm waiting for that to arrive shortly.
If I'm happy with the new lid, then he will make these fan lids an option with the case.

Having mocked up a lid with a fan, after some experimentation with fan placement, the Pi temperature (measured from the PiJUice HAT battery temp sensor) dropped from 70c to 24c -- which is very acceptable. The fan placement ensures air circulation around the critical Pi components? on the lower board -- as well as the battery on the PiJUice HAT.

One other mod you need to do to accept the PiJuice HAT is to remove the USB power socket from the board. All the connections are doubled up and I've added a pin header to connect power. (The USB connector protrudes beyond the board and this clashes with the fixings to case side dimensions.) I used a hot air tool to remove the USB socket. Be sure to cover the adjacent components in Kapton tape -- to prevent them flowing off the board when you apply heat! (Kapton tape is really cheap on eBay and being self adhesive is easy to use. It leaves no residue when removed)
This sounds daunting -- but its not. You do need a focussed nozzle on your hot air gun. Mine is about 8mm in diameter.

I've also included a really great buck converter inside the enclosure -- so my Pi can be fed with anything up to 18V. It also appears to be very RF quiet. I can't hear any interference under QRP conditions on my KX3 within the Amateur bands. I use:?

By the way, the stock PiJuice battery gives me about 5 hours operation of the Pi4b and takes a bit of load off my 20AH Solar generator setup.

So the nice metal case with its new lid and fan is fed from 12V (from my Solar generator) and being aluminium, should be robust for portable operations.
73
Bruce G4ABX
Re: Build a Pi 3.0.3 Released

 

Morning all
BAP 3.03 has been up for circa 20 hours. No repeat of my Wifi issues.

CONKY 'froze' after 11h 14m 43s.
The Pi is still showing the correct time but CONKY is not

I'm not sure if this is related to 3.03 or not? I didn't have a CONKY freeze on BAP 3.02 but that may be coincidental.

I guess a re-boot will fix it?

Are there any logs that might be of use before I reboot?

73
Bruce G4ABX
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Hey Ken;

I'm glad you got it figured out successfully.

Now go have some FUN with it.

es vy 73 om de "baab" w9ya
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Jay,

Thanks....as you can see in my answer to Bob....it was just a matter of typing the password very slowly.

Smiling....

Ken
Re: Case Options

 

¿ªÔÆÌåÓý

I¡¯ve heard that if you spin the drill counter-clockwise instead of clockwise it won¡¯t do that.?

?

The plastic is soft so it still drills but doesn¡¯t melt or mar like it did here.?

?

Jeremy Pierce

KM6QAQ

?

From: [email protected] <[email protected]> On Behalf Of Jesse Barton
Sent: Thursday, August 20, 2020 7:27 AM
To: [email protected]
Subject: Re: [KM4ACK-Pi] Case Options

?

Got the power hat and case recommended above. ?Modified it for use with the power jack and also drilled some holes in the top for the fan. ?Had a nice pretty pattern laid out but due to lack of a drill press it didn't end up as pretty as it looked in pencil...whatever, still just as functional I guess.
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Bob,

Finally Success. When I typed the password "raspberry", I did it very? slow and deliberate.....it worked.

Strange...but I'll take it.

Thanks for your help.

Ken
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Ken,
Here¡¯s a couple thoughts:

¡ª The first time you connect to a new device using SSH you should get a message about the host (or device you are connecting to) not being verified and asking if you want to trust it. This happens the first time you connect and your SSH client will remember the ¡°fingerprint.¡± If you flash a fresh SDcard then the next time you connect you will get a warning that the signature has changed and the host is no longer trusted.?
¡ª When using SSH that you will not see asterisks when putting in the password.
¡ª If you have an iPhone or iPad, I recommend an app called Network Analyzer Pro (there is a lite version too but I paid for the full version, it¡¯s not a subscription but a one time fee). This app allows for scanning your LAN and showing all the devices on your network. Once you know the IP address for a device you can give it an alias to make it easier to differentiate it from other devices in the future.


My initial question to you is whether or not you are receiving the warning when you connect to your Pi for the very first time. If not, you are not connecting to your new Pi.?

Jay
73 de N0SR
Re: Build a Pi 3.0.3 Released

 

¿ªÔÆÌåÓý

I, too, upgraded PAT Menu using BAP 3.0.2 and lost Winlink capability as described in the link below:??

"There has been a bug found in 3.0.2 & 3.0.3. If you update Pat Menu using the build a pi script, you will lose your Pat Menu config file."


If it happened to you, go to that link to see the very easy way to fix it.

Mark,
KE6BB
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Um....I'm outta ideas (for the moment) Ken. Sorry about that.
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Bob,

I'm not using lite. I'm using the desktop as Jason recommended for regular Pi's.

Thanks,

Ken
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Hey agn. Ken;

Um, if you are using a RPi 3. ....then you should NOT use the "lite" image IMnsHO.

(Been there, done that, and have the tee-shirt.)

I have HAD various issues using the "lite" image. I recommend the non-full, non-lite image.

es vy 73 om de "baab" w9ya

On Thursday, August 20, 2020, Kenneth Blackwell <klblackw38@...> wrote:
Bob,

There are no other Pi's running or ever have been under ssh.

I got a password prompt....but strangely it didn't show any symbol like asterisk as I was typing. No....I didn't have caps on.?

I read your very well written description of the process.....and it appears that I did it correctly.

With this Pi, I was trying to learn this method of setting up the headless operation. However, I have successfully got another Pi (3B+) to work headless using a KB, monitor, mouse on the Pi to begin with.

Thanks a bunch,

Ken
KB4XT
Re: Case Options

 

Got the power hat and case recommended above. ?Modified it for use with the power jack and also drilled some holes in the top for the fan. ?Had a nice pretty pattern laid out but due to lack of a drill press it didn't end up as pretty as it looked in pencil...whatever, still just as functional I guess.
Re: KM4ACK --- Pi Zero Quick Start Guide

 

I use An app on my phone called WUM Wifi, It gives a lot more information on the stuff connected to the router. With my Bell Fibre op, the router shows Mac address and the IP address of the unit. The app USUALLY gives more. I also find the mac address of the PI, and assign it to a specific PI. helps me keep it straight in my head.

Steven
VE9SY
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Bob,

There are no other Pi's running or ever have been under ssh.

I got a password prompt....but strangely it didn't show any symbol like asterisk as I was typing. No....I didn't have caps on.?

I read your very well written description of the process.....and it appears that I did it correctly.

With this Pi, I was trying to learn this method of setting up the headless operation. However, I have successfully got another Pi (3B+) to work headless using a KB, monitor, mouse on the Pi to begin with.

Thanks a bunch,

Ken
KB4XT
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Great on the Progress OM !

If you want a "write-up" on this (videos are sometimes harder to follow for some of us (like me !!)) you can go here;
/g/KM4ACK-Pi/message/1039

( As for your current "situation", what comes to mind immediately is TWO raspberry pi's on the same network. IF that is the case, the router WILL assign two ip addresses (normally) but YOU might have trouble knowing which is which UNLESS you have given one of them a DIFFERENT "hostname" but you have given the earlier/older rpi a new user password.

ALSO, if you did not get to a password prompt (and instead got a longish error message), you might have to "work-a-bit" on the ~/.ssh/known_hosts file of the computer you are using to access the new rpi ).
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Bob,

I got a little farther this time. I went back...reburned the SD card and installed the SSH and wpa files. This time I found the IP address among the items connected to the router.

After issuing the ssh [email protected] from the router list....it wouldn't accept the raspberry password. After 2 tries, it stopped login.

By the way I used the alternate code that Jason supplied for the wpa file.

Cheers,

Ken
KB4XT
Re: Build a Pi 3.0.3 Released

 

Thanks Jason
I'll do as you suggest.
I read the change log? and couldn't see anything that might be responsible for the WiFi issue.

73
Bruce G4ABX
Re: KM4ACK --- Pi Zero Quick Start Guide

 

Hey Ken OM;

Yep the files are suppose to disappear from the /boot partition/directory on boot-up if things are working o.k. !! ..... You can check this by looking at the /etc/wpa_supplicant/wpa_supplicant.conf file that is in the "other" (root) partition. <- It should be the very same file you placed in the boot partition.

That being the case; it seems like you might have a networking "issue/problem". Please check and look for the proper SSID and PASSWORD in the wpa_supplicant.conf file. (First thought on my part.)

es vy 73 om de "baab" w9ya
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