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jensa
07-05-2020, 05:30 PM
I finally got around to write up my experience making a DIY board based on Teensy 3.2: https://github.com/jenschr/Teensy3.2-example

It has files for Kicad 5 and uses a USB Type C connector. Hope it's useful to others!

blackketter
07-05-2020, 08:09 PM
Looks great, thanks for posting this!

jonr
07-06-2020, 11:12 AM
Great to see another example.

It's good practice to put decoupling capacitors tight to power pins. For example, MCU pins 7&8 are some distance from a capacitor.

bogdanabosaia
07-06-2020, 01:58 PM
Thank you friend for linking to DIY Teensy 3.2 board files

jensa
07-17-2020, 11:02 AM
MCU pins 7&8 are some distance from a capacitor.

True. The board works well with this layout, but C4 should certainly be moved to Pin 7 & 8. Oversight on my behalf :cool:
I updated the Kicad files to implement this change.

jonr
07-17-2020, 01:20 PM
Sorry to sound so picky, but pin 1 of U3 has the same problem. Maybe move C1 down there.

jensa
07-17-2020, 03:03 PM
Sorry to sound so picky, but pin 1 of U3 has the same problem. Maybe move C1 down there.

Nahh. It's all good feedback. C1 is the 10uF cap on the power input, so I added a new cap next to the MLK20 power pins and posted it back to the Git repo. I'm making a board for a customer using this design right now, so I'm putting it in there as well to test ;-)

J

mstiller
07-17-2020, 04:03 PM
Thanks for sharing, actually i also like the FeatherWing proto in your Github repo. :)

jensa
07-17-2020, 06:25 PM
Thanks for sharing, actually i also like the FeatherWing proto in your Github repo. :)

Glad it's of use :)
The FeatherWing board is based upon this board (https://flashgamer.com/blog/comments/neopixel-wing-for-feather) so also a confirmed design. It's quite useful with NeoPixels, though Teensy is better for anything with a large amount of pixels.