Added symbol and footprint for mating to teensy4_header_breakout

[JayShoe]

Hello,

I added a symbol and footprint for this breakout board that will make it easier to build a new board to "mate" with the breakout board.

symbols\teensy4_header_breakout_symbol.lib footprints\teensy4_header_breakout.pretty\teensy4_header_breakout_footprint.kicad_mod

Jay

[blackketter]

Thanks!

I have a little feedback:

• I don't quite understand the numbering of the pins. Seems like they shouldn't jump around. Maybe have the original Teensy pins (inner rows) be 1-28 and the outer rows 29-56?

• I'm not sure why there's an ESP section in the symbol. Sure, you can use those pins for that purpose, but there are plenty of applications of this footprint that don't use an ESP32, or use one differently. (Also, the symbol implies that the PROGRAM pin is somehow related to ESP, which is not the case.)

What do you think?

[JayShoe]

Hello, Sorry for the delay. I've been working on my project!

I thought that the numbering of the pins corresponded to the physical location on the breakout - so I felt like it would be helpful to be that way.

Regarding the "ESP" labels. You are right about that too. I noticed on your board you put that on the silkscreen - so i did it in the schematic. I'm aware that it will be used in different ways.

No worries either way, thank you so much for your work on this! Since T4.1 is out - I'll probably use that instead of this breakoutboard.

I'll have to follow your projects to see if you've done an ESP32 for the T4.1 using SPI. I would like to do that - along with I2S to the SAI2 pins of the Teensy. Anyhow. All good. Cheers!