I have two 5" displays and they both work were wired per the
docs and work, although one has a very bad noise bar down the center of the
screen which slowly dissipates as it warms up, but never really
disappears.? My displays were purchased last June, perhaps they are
shipping? displays with two different interfaces. Maybe others will have
more input.
?
Rick KN4AIE
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No display and no Teensy LED indicator. ??
Began with a 7” display and it worked fine per instructions. ?Then
tryed 5” per actual photo in manual and the above happened.?
Pulled up both data sheets and confirmed the?working 7”
display was using the interrupt pin on JP3.?
The interrupt pin on the 5” is located as my photo
shows (red wire) on the 5” which is JP3, pin 10.
Jim KM4TXR
On Mar 2, 2019, at 2:58 PM, PeteWK8S via Groups.Io < pmeier@...>
wrote:
What were your symptoms using Jacks Interrupt pin?
Interesting, ?on the display here it would only work as shown.
?This display could have a problem I suppose, I’ll leave that up to the
experts to determine.
Jim KM4TXR
On Mar 2, 2019, at 2:32 PM, PeteWK8S via Groups.Io < pmeier@...>
wrote:
From my experience it works both ways.?
The documentation regarding wiring the 5” display has some
issues. ?It took some reverse engineering to determine the correct
wiring should look like
this...
<8C69DA4A_D19F_4E72_91F6_AD32CC68A0C7.jpeg>
Jim
KM4TXR
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Warning on the 3V supply line!! ?Do not allow anything to cause a short to 3V supply line.? Watch that heatsink is insulated from the regulator tab. (not my issue). Also be sure the 3.3V regulator is seated fully into board when soldered otherwise the thinner portion of the regulator can easily bend and break if moved too much during handling such as inserting into a case.
If you short the 3V line IT WILL DESTROY YOUR DISPLAY - IMMEDIATELY!! ?
Be very cautious. This project has a ton of interconnections that can be confusing so go slow and careful especially during final assembly into a case.
Pete Meier
pmeier at
Amateur Radio Callsign: WK8S
|| I never lose. If I don't win, I learn. -?unknown author ||
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No display and no Teensy LED indicator. ??
Began with a 7” display and it worked fine per instructions. ?Then tryed 5” per actual photo in manual and the above happened.?
Pulled up both data sheets and confirmed the?working 7” display was using the interrupt pin on JP3.?
The interrupt pin on the 5” is located as my photo shows (red wire) on the 5” which is JP3, pin 10.
Jim KM4TXR
On Mar 2, 2019, at 2:58 PM, PeteWK8S via Groups.Io < pmeier@...> wrote:
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What were your symptoms using Jacks Interrupt pin?
Interesting, ?on the display here it would only work as shown. ?This display could have a problem I suppose, I’ll leave that up to the experts to determine.
Jim KM4TXR
On Mar 2, 2019, at 2:32 PM, PeteWK8S via Groups.Io < pmeier@...> wrote:
From my experience it works both ways.?
The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...
<8C69DA4A_D19F_4E72_91F6_AD32CC68A0C7.jpeg>
Jim KM4TXR
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What were your symptoms using Jacks Interrupt pin?
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Show quoted text
On Mar 2, 2019, at 12:34 PM, James Zdunic < james_zdunic@...> wrote:
Interesting, ?on the display here it would only work as shown. ?This display could have a problem I suppose, I’ll leave that up to the experts to determine.
Jim KM4TXR
On Mar 2, 2019, at 2:32 PM, PeteWK8S via Groups.Io < pmeier@...> wrote:
From my experience it works both ways.?
The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...
<8C69DA4A_D19F_4E72_91F6_AD32CC68A0C7.jpeg>
Jim KM4TXR
|
Interesting, ?on the display here it would only work as shown. ?This display could have a problem I suppose, I’ll leave that up to the experts to determine.
Jim KM4TXR
On Mar 2, 2019, at 2:32 PM, PeteWK8S via Groups.Io < pmeier@...> wrote:
toggle quoted message
Show quoted text
From my experience it works both ways.?
The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...
<8C69DA4A_D19F_4E72_91F6_AD32CC68A0C7.jpeg>
Jim KM4TXR
|
From my experience it works both ways.?
toggle quoted message
Show quoted text
On Mar 2, 2019, at 12:29 PM, James Zdunic < james_zdunic@...> wrote: The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...
<8C69DA4A_D19F_4E72_91F6_AD32CC68A0C7.jpeg>
Jim KM4TXR
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AL and I are meeting tomorrow and we'll fix the DOC files. Thanks for pointing this out!
Jack, W8TEE
On Saturday, March 2, 2019, 2:29:21 PM EST, James Zdunic <james_zdunic@...> wrote:
The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...  Jim KM4TXR
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The documentation regarding wiring the 5” display has some issues. ?It took some reverse engineering to determine the correct wiring should look like this...  Jim KM4TXR
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on the jackal board thereare 2 TP3s one by r303 and one by the 5v regulator
and 2 J11s? one by what appears to the the 12v connector and one by the connector to ubix audio.
is the volume control to the ubix the one that will be used?
thanks dave k7da
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All:
Just to remind you that Al, some members, and I are meeting at 9:30AM on Saturday (March 2) for breakfast at the Country Inn (910 Ohio Pike, Amelia exit off 275). Nothing formal, but we may have a V5 ?BIT done by then. If you have anything to show off, bring it along!
Jack, W8TEE Al, AC8GY
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I powered up the jackal board alone without the CPU/audio board. ?I don’t have the fancy equipment(yet) to do the audio signal measurements & such. ?However I did the basic checking of the current draw which is 90mA, and the 3.3v & 5v supply circuits with a DMM which check out fine. ?Then I started poking around the rest of the test points and CPU sockets and see 11.7v on some of the CPU socket pins as seen in the attached photo. ?From what I understand the Teensy 3.6 pins are 3.3v tolerant and because of this I am hesitant to connect the CPU. ?However my friend’s board measures the same so I’m thinking there may be no problem. ?Just curious why the high voltage readings with no CPU connected and is this okay?  Jim Zdunic KM4TXR
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Re: Access to CPU pins for experimenting...
Thank you. I will try to post this on our web site this weekend.
Jack, W8TEE
On Friday, February 22, 2019, 9:25:41 PM EST, James Zdunic <james_zdunic@...> wrote:
Yes Jack, no problem.? You are free to use it however you'd like.
I went through it one more time and did a final edit which is attached.?
Jim KM4TXR
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Re: Access to CPU pins for experimenting...
Yes Jack, no problem.? You are free to use it however you'd like.
I went through it one more time and did a final edit which is attached.?
Jim KM4TXR
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Re: Access to CPU pins for experimenting...
Glad I could produce some time for you.? Good luck with it.
Jim? KM4TXR
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Re: Access to CPU pins for experimenting...
Very nice work.?? You have saved? me much horological bandwidth.
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I'm going to put my QCX-20 in the HF small Apache case.
Jack, W8TEE
On Friday, February 22, 2019, 9:27:30 AM EST, Gwen Patton <ardrhi@...> wrote:
I was annoyed. I got the other version of their ammo box a couple of?weeks ago, to go with the article on putting a QRP rig in an ammo box that was out recently. I'm going to put the modular 40 in it, Jack. :)
On Fri, Feb 22, 2019 at 8:39 AM jjpurdum via Groups.Io <jjpurdum= [email protected]> wrote: All:
Harbor Freight has their polypropylene version of its ammo case on sale for $4. It appears to have a water-tight gasket on it, along with a handle:
I have no financial interest in HF, but I find cheap cases always good to know about.
Jack, W8TEE
?
--
-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
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I was annoyed. I got the other version of their ammo box a couple of?weeks ago, to go with the article on putting a QRP rig in an ammo box that was out recently. I'm going to put the modular 40 in it, Jack. :)
On Fri, Feb 22, 2019 at 8:39 AM jjpurdum via Groups.Io <jjpurdum= [email protected]> wrote: All:
Harbor Freight has their polypropylene version of its ammo case on sale for $4. It appears to have a water-tight gasket on it, along with a handle:
I have no financial interest in HF, but I find cheap cases always good to know about.
Jack, W8TEE
?
--
-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
|
All:
Harbor Freight has their polypropylene version of its ammo case on sale for $4. It appears to have a water-tight gasket on it, along with a handle:
I have no financial interest in HF, but I find cheap cases always good to know about.
Jack, W8TEE
?
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Re: Access to CPU pins for experimenting...
Jim:
Thanks for the document file. I'm sure there will be other like you who want to experiment beyond what we've provided. Would it be okay if we posted your file so others can use it?
Jack
On Thursday, February 21, 2019, 11:55:03 PM EST, James Zdunic <james_zdunic@...> wrote:
[Edited Message Follows]
[Reason: Edited to mention error in Step 4 of attachment]
The primary reason I am building the ubitx & JackAl is to end up with an embedded development platform that I can do mad scientist activities on.? My approach to selecting and mounting the CPU related headers makes for easy access to the CPU pins for experimenting using receptacle connectors.? This includes the otherwise hidden internal rows of CPU pins.? I also populated all points on the Audio board with with receptacle connectors.? The soldering process sequence I used prevented me from soldering myself in a corner and ending up with tight spots to solder within.? Attached are instructions for those who may be interested in doing the same thing.
Jim KM4TXR
EDIT:? Step 4 of the attachment calls for a 6 point receptacle which should read 10 point receptacle.
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Access to CPU pins for experimenting...
The primary reason I am building the ubitx & JackAl is to end up with an embedded development platform that I can do mad scientist activities on.? My approach to selecting and mounting the CPU related headers makes for easy access to the CPU pins for experimenting using receptacle connectors.? This includes the otherwise hidden internal rows of CPU pins.? I also populated all points on the Audio board with with receptacle connectors.? The soldering process sequence I used prevented me from soldering myself in a corner and ending up with tight spots to solder within.? Attached are instructions for those who may be interested in doing the same thing.
Jim KM4TXR
EDIT:? Step 4 of the attachment calls for a 6 point receptacle which should read 10 point receptacle.
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jjpurdum