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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

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

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

If you do not mind AliExpress there are many choices.? Link to 1 below:

Or depending on layout can you use the 2x6 and just snip 2 pins.? Is there real estate on the board for that?

Thanks Al. I'll give that a try and let you know. Mark

*** 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

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

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

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

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

If you cant get a reasonable price, how about just sandwiching two 1x5 headers?

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.

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

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

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

With one or two exceptions. I'll put together kits for the display driver. I can even have a few of them built for those who want a finish product (my daughter-in-law is a stay at home EE who needs

Yeah it doesn’t work very well for Capacitors or Inductors because the test frequency is so low… but I like the size… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

I ended up buying the FNRISI tweezers also. A note of caution.? Some capacitors read quite low from auto. When I played with the measurement frequency, things were better. -- Regards Phil VK2KKZ

Dave, I tried the same several years ago. To my understanding the TFT_eSPI library is highly optimized. It uses the DMA mechanism of the STM32F103. The STM32F401 has a different DMA and appropriate