Re: Display driver kits shortly
Suggestion: instead of placing a female connector on the board, use a male connector, and then use a short female to female IDC cable to attach.
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ken WA2MZE
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#32610
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Re: Display driver board reality
Yep that¡¯s what I found¡ Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C Operator Villa
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K9HZ
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#32609
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Re: Display driver board reality
I have a number of these displays (both 5" and 7").? All can either run on 3.3 or 5V with jumper change (they all have a 3.3V regulator for 5V operation).? All are only 3.3V on the data lines, no
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Terrance Robertson, KN6ZDE
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#32608
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Re: Display driver board reality
My understanding is the the 5" board is 3v3 - period. The 5V option just sticks a 3-terminal regulator on the board to make 5V supply into 3v3 for the internals. I used the 5V option because I figured
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jerry-KF6VB
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#32607
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Display driver board reality
Oh brother, this is starting to get complicated. The RA8875 is a 3.3V chip. and the inputs, as far as I can tell. from my research so far. are only 3.3V tolerant. To make this more confusing, some of
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K9HZ
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#32606
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Re: Display driver kits shortly
Those are 2mm, not 2.54mm.? ( I suspect you can find the .1" pitch there as well) Yahoo Mail - Email Simplified On Thu, Feb 6, 2025 at 12:16 PM, dick faust via
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Tom Clifton
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#32605
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Re: Display driver kits shortly
Well fact is¡ I¡¯ve already done that¡ sort of¡. For my prototype, I installed a 2x4 socket in a 2x5 holes pattern on the PCB knowing full well that 2 of the 10 holes on the end of the 2x5
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K9HZ
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#32604
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Re: Display driver kits shortly
If you do not mind AliExpress there are many choices.? Link to 1 below:
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dick faust
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#32603
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Re: Display driver kits shortly
Or depending on layout can you use the 2x6 and just snip 2 pins.? Is there real estate on the board for that?
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bruce williams
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#32602
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Re: Excessive Noise
Thanks Al. I'll give that a try and let you know. Mark
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epif18@...
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#32601
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Re: Display Noise
*** I can do better than that. I can cut a piece of single-sided PC board stock, solder a ground lead to it, and mount it to the back of the display. - Jerry, KF6VB
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jerry-KF6VB
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#32600
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Re: Projects Power Supply STL files
Kevin, Did you find a way to make the cad files ¡°public¡± in Tinker Cad for the Projects Power Supply? Or Am I just not finding them here? Thanks, Larry - WA9LQT
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Larry Downing
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#32599
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Re: Display Noise
Do you have a piece of aluminum you can put behind the display and clip-lead it to ground to test if a shield will work? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
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K9HZ
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#32598
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Display Noise
The upper bands are open this morning - I heard a W2 on 10M. Listening on 15 right now. I can hear the display. It makes a rhythmic grinding noise. Here's something interesting.. ...I put my hand up
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jerry-KF6VB
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#32597
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Re: Display driver kits shortly
The right ones will work¡., but they need to be the thin versions or it¡¯s a struggle. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal
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K9HZ
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#32596
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Re: Display driver kits shortly
If you cant get a reasonable price, how about just sandwiching two 1x5 headers?
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bruce williams
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#32595
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Re: Display driver kits shortly
Thanks for your work on this.? I would like two built versions if your daughter-in-law is willing.? I know you don't like to make money on these but please make sure she charges for her time.
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Terrance Robertson, KN6ZDE
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#32594
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Re: Excessive Noise
Hi Mark, V12 hardware has lots more gain than V11. You may need to reduce the RF Gain to -10 or -15db. See if that helps. Al AC8GY
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Albert Peter
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#32593
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Re: Display driver kits shortly
Yahoo Mail - Email Simplified On Thu, Feb 6, 2025 at 8:06 AM, Tom Clifton via groups.io<kc0vsj@...> wrote: Check Amazon 25 for $7 " Brand Pro" 25-Pack 10P 2.54mm 0.1" Pitch PCB Female
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Tom Clifton
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#32592
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Re: Display driver kits shortly
Check Amazon 25 for $7 " Brand Pro" 25-Pack 10P 2.54mm 0.1" Pitch PCB Female Pin Headers 2x5 Dual Rows 10 Pins Female Sockets to Male Straight PCB DIP, Double Rows PC Board Through-Board Strip
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Tom Clifton
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#32591
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