Date   

Re: Getting started with the W3DJS V2 image

David KD4E <dcolburn@...>
 

It my case it proved far more simple to just boot Buster Raspian,
open the Browser, then download and install the apps I needed.

For some reason trying to get things to play together nicely with
the W3DJS package just didn't work.

HTH, YMMV ...

KillHotspot case sensitive. Killing the hotspot only makes the Wired interface work properly.

 

Brian N2KGC




Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

Ed K6ESS
 

Tad came pretty close to a "Santa's wish list" card. I could pass on all the data logging, but all else is spot on. Santa, can you come thru with a late Christmas gift?

Ed K6ESS
Sacramento CA

Make everything as simple as possible,  but not simpler.  Albert Einstein

On Tue, Dec 31, 2019, 16:14 Bill Vodall <wa7nwp@...> wrote:
> Not, yet, interested in 1200 baud, especially at $150.

The DRAWS board is designed for 9600 baud which most other sound card
interfaces won't handle.  In particular, as handy as it is, the
Signalink will not work at the higher speed because it has
transformers in the audio chain.

DRAWS has suggested it will work at 19,200 but I'm waiting for them to
demo that - preferably with iPerf numbers...

Bill




Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

 

Not, yet, interested in 1200 baud, especially at $150.
The DRAWS board is designed for 9600 baud which most other sound card
interfaces won't handle. In particular, as handy as it is, the
Signalink will not work at the higher speed because it has
transformers in the audio chain.

DRAWS has suggested it will work at 19,200 but I'm waiting for them to
demo that - preferably with iPerf numbers...

Bill


Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

 

Patience maties.   Don’t knock anybody making a product which is pretty much exclusively for ham radio ops.  Hams are NOT that great of a market place.  We need all that we can get.  

The DRAWS is pretty cool if you want to be doing APRS stuff with Direwolf.  

I acknowledge that it doesn’t address the 12v backup power thing we’ve been talking about.  
This is my wishlist for a Raspberry PI backup and power control system:
  • Runs a Raspberry PI 3B, 3B+ or 4B @5.1vDC 
  • It is powered by a 11.5vDC to 15vDC mains/primary power source.  
  • Powered using Anderson PowerPole connection.
  • Provides backup power to the Raspberry PI with instant switchover if the primary power source goes below 11.5v (maybe configurable?)
  • It should have an on/off button or toggle to do a safe shutdown of the Raspberry PI.  
  • It should know if we turned off the PI using an external switch, that the PI should stay off until we turn it on, even of the main power and secondary power are removed and re-applied.   A toggle switch input is ideal for this since it has a real “OFF” state. 
  • Uses an unspecified battery for backup power, given some reasonable battery voltage (6.5v to 15v?).  
  • Supports an unspecified external charger for any particular battery and can remove the charger from the circuit when the battery is discharging.  
  • It should be configurable to do a self-declared Raspberry Pi shutdown if the battery backup battery goes below the configured voltage, and then return the Raspberry PI to powered-up only if the mains/PRIMARY source is present for a configured length of time. 
  • It should be able to tell us how l long the power was off for, and let us read the voltage of either mains/PRIMARY or battery input in real time.
  • It would be nice if it could log the voltage on each power input periodically whenever the switch is ON, regardless of whether running on primary/mains or battery.  Perhaps the log would increase the time between readings logarithmically if it runs out of memory space?  
  • It should have some RF immunity features built in, including ground-plane, a large tinned-thru-hole screw-hole for #4 screw to ground the unit, and maybe provision to insert ferrite beads and bypass caps in off-the-board circuits?  
  • It should be almost free (haha)
There aren’t many points not covered by the MOPI.  

I’m not particularly wedded to having a shield card/hat for a Raspberry PI.  I find the physical mounting of such units to be sloppy and access to switches, variable controls, and LEDs on stacked boards is difficult.  I’d prefer using a 6” USB cable, but I acknowledge the additional expense and in-circuit loss of such a thing.  
   Tadd / KA2DEW
   Raleigh NC




On Dec 30, 2019, at 12:30 PM, Daniel Holmes <danielh@...> wrote:

Eh, considering all that it does and the convenience factor I don’t think $150 is all that outrageous. I already have a Pi-TNC, Signalink, GPS puck, and the Mo-Pi, so it’s superfluous for me. The Mo-Pi handled my power requirements (namely multiple inputs and charging circuitry) better than the DRAWS HAT. Although it would be very convenient to have everything in one package.

Dan
--
Daniel Holmes, danielh@...
"Laugh while you can, monkey boy!" -- Lord John Whorfin


On Dec 30, 2019, at 10:22 AM, Michael WA7SKG <wa7skg@...> wrote:

Thanks for the suggestion, but I am not going to spend another $150+ for more hardware that is less capable than what I already have to do the work of a $7 buck-boost module.

Michael WA7SKG

John D Hays - K7VE wrote on 12/30/19 8:48 AM:
For Amateur Radio use, be sure to look at the DRAWS™ <http://www.nwdigitalradio.com/draws> board: 9-15 VDC input supply, sound card, dual radio interfaces, GPIO pin extensions, GPS (w/battery backed clock) -- all integrated into a Raspberry Pi HAT.
http://nwdigitalradio.com/shop/
--
John D. Hays
Kingston, WA
K7VE









Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

chuck gelm <rpi4ham@...>
 

On 12/30/19 12:22 PM, Michael WA7SKG wrote:
Thanks for the suggestion, but I am not going to spend another $150+ for more hardware that is less capable than what I already have to do the work of a $7 buck-boost module.

Michael WA7SKG

+1

Not, yet, interested in 1200 baud, especially at $150.

...what I already have to do the work of a $50 single band, modem, transceiver, antenna, POE powered, outdoor rated, up to 144.4 Mbps, automatic-adaptive networking,

:-|

But, I love the Raspberry Pi. :-)

Chuck


Re: Getting started with the W3DJS V2 image

Brian Webster
 

KillHotspot case sensitive. Killing the hotspot only makes the Wired interface work properly.

 

Brian N2KGC

 

From: RaspberryPi-4-HamRadio@groups.io [mailto:RaspberryPi-4-HamRadio@groups.io] On Behalf Of Tim Carroll
Sent: Tuesday, December 31, 2019 3:28 AM
To: RaspberryPi-4-HamRadio@groups.io
Subject: Re: [RaspberryPi-4-HamRadio] Getting started with the W3DJS V2 image

 

On Mon, Dec 16, 2019 at 07:51 AM, Joe Spears wrote:

wpa_supplicant.conf 

where is this file located at on pi?I am having troubles getting wifi to work also used killhotspot but still did not work



Thanks
Tim
KE4HGP


Re: Getting started with the W3DJS V2 image

Larry Greenwald
 

Hi Tim,

pi@rpi3:~ $ locate wpa_supplicant.conf
/etc/wpa_supplicant/wpa_supplicant.conf

Larry
WB0SIO

On 12/31/19 2:27 AM, Tim Carroll wrote:
On Mon, Dec 16, 2019 at 07:51 AM, Joe Spears wrote:
wpa_supplicant.conf 
where is this file located at on pi?I am having troubles getting wifi to work also used killhotspot but still did not work



Thanks
Tim
KE4HGP


Re: Getting started with the W3DJS V2 image

rx@...
 

Hi

Mine is...

etc/wpa_supplicant/wpa_supplicant.conf

Regards

MarK
G6JVY


Re: Getting started with the W3DJS V2 image

Tim Carroll
 

On Mon, Dec 16, 2019 at 07:51 AM, Joe Spears wrote:
wpa_supplicant.conf 
where is this file located at on pi?I am having troubles getting wifi to work also used killhotspot but still did not work



Thanks
Tim
KE4HGP


Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

Daniel Holmes
 

Eh, considering all that it does and the convenience factor I don’t think $150 is all that outrageous. I already have a Pi-TNC, Signalink, GPS puck, and the Mo-Pi, so it’s superfluous for me. The Mo-Pi handled my power requirements (namely multiple inputs and charging circuitry) better than the DRAWS HAT. Although it would be very convenient to have everything in one package.

Dan
--
Daniel Holmes, danielh@...
"Laugh while you can, monkey boy!" -- Lord John Whorfin

On Dec 30, 2019, at 10:22 AM, Michael WA7SKG <wa7skg@...> wrote:

Thanks for the suggestion, but I am not going to spend another $150+ for more hardware that is less capable than what I already have to do the work of a $7 buck-boost module.

Michael WA7SKG

John D Hays - K7VE wrote on 12/30/19 8:48 AM:
For Amateur Radio use, be sure to look at the DRAWS™ <http://www.nwdigitalradio.com/draws> board: 9-15 VDC input supply, sound card, dual radio interfaces, GPIO pin extensions, GPS (w/battery backed clock) -- all integrated into a Raspberry Pi HAT.
http://nwdigitalradio.com/shop/
--
John D. Hays
Kingston, WA
K7VE


Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

Michael WA7SKG
 

Thanks for the suggestion, but I am not going to spend another $150+ for more hardware that is less capable than what I already have to do the work of a $7 buck-boost module.

Michael WA7SKG

John D Hays - K7VE wrote on 12/30/19 8:48 AM:

For Amateur Radio use, be sure to look at the DRAWS™ <http://www.nwdigitalradio.com/draws> board: 9-15 VDC input supply, sound card, dual radio interfaces, GPIO pin extensions, GPS (w/battery backed clock) -- all integrated into a Raspberry Pi HAT.
http://nwdigitalradio.com/shop/
--
John D. Hays
Kingston, WA
K7VE


Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

 

For Amateur Radio use, be sure to look at the DRAWS™ board: 9-15 VDC input supply, sound card, dual radio interfaces, GPIO pin extensions, GPS (w/battery backed clock) -- all integrated into a Raspberry Pi HAT.
--
John D. Hays
Kingston, WA
K7VE

 


Re: RPi Mobile with MoPi2 and Raspberry Touchscreen

Daniel Holmes
 

You are at the point I am—and just can’t seem to find the few hours I need to experiment. The other option—there is a connection for a 5v relay that could work too. 

Good luck,
Dan

--
. Please pardon any mispelings or errors.


On Dec 27, 2019, at 11:20 PM, Michael WA7SKG <wa7skg@...> wrote:

I thought that may be the case. I'll have to find some jumpers. I've had the screen for several years and only just now got around to fiddling with it. It is mounted in a Smarti Pi case. I'll have to take everything apart, but I think it will work. I have the pin extender on order as it will be needed for the TNC-Pi mounted over the MoPi board.

Now I just have to look for what pins to connect to.

Thanks,
Michael WA7SKG


Daniel Holmes wrote on 12/27/19 7:20 PM:
My 7” monitor is powered by a couple pins on the GPIO header—can that work? You can get a pin extender so the MoPi rides on the GPIO header, then the extra pins there should power the screen. Otherwise you can attach a couple more leads to the output of the MoPi and use it.
Dan
--
. Please pardon any mispelings or errors.
On Dec 27, 2019, at 6:58 PM, Michael WA7SKG <wa7skg@...> wrote:

I am setting up an RPi for mobile operation using the 7" "official" RPi touchscreen. Initially, I was using a Powerwerx USBuddy 12V-5V converter feeding both devices via a "Y" cable. For whatever reason (still under investigation), that did not seem adequate and I got a constant "Low Voltage" lightning bolt on the screen. I found and acquired a MoPi 2 power supply hat that will adequately power the RPi from 12V. My concern now is powering the monitor. I am trying to minimize the number of various cables, adapters, line lumps, etc. in this installation. I am also running out of ports on my 12V distribution system.

Is anyone familiar with this power supply and any suggestions on how to power the monitor from it?

tnx es 73,
Michael WA7SKG





Re: RPi Mobile with MoPi2 and Raspberry Touchscreen

Michael WA7SKG
 

I thought that may be the case. I'll have to find some jumpers. I've had the screen for several years and only just now got around to fiddling with it. It is mounted in a Smarti Pi case. I'll have to take everything apart, but I think it will work. I have the pin extender on order as it will be needed for the TNC-Pi mounted over the MoPi board.

Now I just have to look for what pins to connect to.

Thanks,
Michael WA7SKG


Daniel Holmes wrote on 12/27/19 7:20 PM:

My 7” monitor is powered by a couple pins on the GPIO header—can that work? You can get a pin extender so the MoPi rides on the GPIO header, then the extra pins there should power the screen. Otherwise you can attach a couple more leads to the output of the MoPi and use it.
Dan
--
. Please pardon any mispelings or errors.

On Dec 27, 2019, at 6:58 PM, Michael WA7SKG <wa7skg@...> wrote:

I am setting up an RPi for mobile operation using the 7" "official" RPi touchscreen. Initially, I was using a Powerwerx USBuddy 12V-5V converter feeding both devices via a "Y" cable. For whatever reason (still under investigation), that did not seem adequate and I got a constant "Low Voltage" lightning bolt on the screen. I found and acquired a MoPi 2 power supply hat that will adequately power the RPi from 12V. My concern now is powering the monitor. I am trying to minimize the number of various cables, adapters, line lumps, etc. in this installation. I am also running out of ports on my 12V distribution system.

Is anyone familiar with this power supply and any suggestions on how to power the monitor from it?

tnx es 73,
Michael WA7SKG


Re: RPi Mobile with MoPi2 and Raspberry Touchscreen

Daniel Holmes
 

My 7” monitor is powered by a couple pins on the GPIO header—can that work? You can get a pin extender so the MoPi rides on the GPIO header, then the extra pins there should power the screen. Otherwise you can attach a couple more leads to the output of the MoPi and use it.  

Dan

--
. Please pardon any mispelings or errors.


On Dec 27, 2019, at 6:58 PM, Michael WA7SKG <wa7skg@...> wrote:

I am setting up an RPi for mobile operation using the 7" "official" RPi touchscreen. Initially, I was using a Powerwerx USBuddy 12V-5V converter feeding both devices via a "Y" cable. For whatever reason (still under investigation), that did not seem adequate and I got a constant "Low Voltage" lightning bolt on the screen. I found and acquired a MoPi 2 power supply hat that will adequately power the RPi from 12V. My concern now is powering the monitor. I am trying to minimize the number of various cables, adapters, line lumps, etc. in this installation. I am also running out of ports on my 12V distribution system.

Is anyone familiar with this power supply and any suggestions on how to power the monitor from it?

tnx es 73,
Michael WA7SKG





RPi Mobile with MoPi2 and Raspberry Touchscreen

Michael WA7SKG
 

I am setting up an RPi for mobile operation using the 7" "official" RPi touchscreen. Initially, I was using a Powerwerx USBuddy 12V-5V converter feeding both devices via a "Y" cable. For whatever reason (still under investigation), that did not seem adequate and I got a constant "Low Voltage" lightning bolt on the screen. I found and acquired a MoPi 2 power supply hat that will adequately power the RPi from 12V. My concern now is powering the monitor. I am trying to minimize the number of various cables, adapters, line lumps, etc. in this installation. I am also running out of ports on my 12V distribution system.

Is anyone familiar with this power supply and any suggestions on how to power the monitor from it?

tnx es 73,
Michael WA7SKG


Re: GPS module?

I6KZR
 

thanks

Il 26/12/2019 18:02, Jerome Kutche ha scritto:

Did u find one that you like.. If not let me know.. 73 Jerry N9LYA
Email good on qrz


Re: GPS module?

Jerome Kutche
 

Did u find one that you like.. If not let me know.. 73 Jerry N9LYA
Email good on qrz


Re: Getting back to the RPi

Clark Martin
 

On Dec 23, 2019, at 9:46 PM, Michael WA7SKG <wa7skg@...> wrote:

With almost two dozen items shown on that page, is there one in particular you recommend? Do any of these have some kind of case where they would be suitable in a mobile environment?

Michael WA7SKG



Clark Martin wrote on 12/23/19 9:34 PM:
I use something like some of the following to power a RPi 3 off a 12V LiFePO4 Battery.
<https://www.amazon.com/s?k=12v+5v+step+down&crid=2JEJT78ZCKX7H&sprefix=12v+5v+%2Caps%2C199&ref=nb_sb_ss_i_4_7>


Re: 12V Power for the Pi (was Re: [RaspberryPi-4-HamRadio] Getting back to the RPi)

bbillp
 

The WittyPI III from UUGEAR will take input to 15V to power the Pi, the WittyPi also contains an accurate RTC and lots of automatic power up and power down programming options. I use 4 of these to control my sky cameras.

Any number of 7805 regulators and micro sized DC to DC regulators are available for 5 volts output. I also use OLD USB cables to connect power to the Pi as the wire conductors are large and can carry the current. Bill k6acj.