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Not quite that simple… Some, but few zeners operate at 10 MHz like the SPI clock and data signal lines do. What you get instead is something that looks like a mountain shaped waveform. People have

*** To make protection complete, use a 3.3V zener and a fuse. Goof up, the fuse blows, you fix the problem and replace the fuse. Might want to use a zener slightly higher V, so it doesn't interfere

Yes the ethernet version will work. This is the version that I am using because I wanted ethernet on my T41-EP. John, G0SDF

Seems T 4.1 NE are now not in stock at PJRC.? Can anyone confirm, will the T4.1 with ethernet version work?? It has an additional ethernet chip on board.? A plug and cable can be added, but I would

Very nice, Kevin! Russ

Just a thought but I am no EE.? I like the guidance and list.? The only remaining issue is *or if you DO have the level change hardware on your display board but have not selected it* Is it not

No. data line voltages at 3.3 and VSS to the display requlator of 5V... Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC

Well let’s check that out. 1. I bought 10,000 2x5 PCB sockets from LCSC. Cost plus shipping, tax, etc left them at $0.26 each. That’s less than half of Mouser or Digikey (they are way over priced

Bill and all I'm surprised more people are not using LCSC for components, they are the sister to JLCPCB. Prices are mostly far better than Digi or Mouser, it just takes a little longer for deliveries.

By "operating the display at 5V", you mean 5V logic? - Jerry, KF6VB

This one will work for operating the display at 3.3V and 5V. It's about $0.60 more that the strictly 3.3V driver board. Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

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.

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 – K9ZC Staunton, Illinois Owner – Operator Villa

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

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

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?