Teensy Teensy

[Camble]

I found the Teensy, however Teensy, to be a little big for my needs. So I found this tiny little development board.

It's not as powerful and only has 4 I/O pins after using two for USB, so would require a bit more work than just soldering 12 wires from the button PCB. I'm considering trying it out, but thought I'd post it up in case it's useful to anyone.

http://digistump.com/products/1

[Fleder]

If the 32u4 clones are too big, too, you can give the ATtiny167 a try.
I think it works as a USB HID, too.

18x28mm
https://www.aliexpress.com/item/Free-sh ... .61.TdQsCe

Or even smaller, the ATtiny85 (i think this is the clone of yours) I think they are 18x23mm
https://www.aliexpress.com/item/1pcs-Di ... f81e455c9d (male)
http://www.banggood.com/ATTINY85-Mini-U ... 71122.html (female)

[Camble]

Nice, that first one is so much cheaper than a Teensy too!

[Fleder]

Nice, that first one is so much cheaper than a Teensy too!

Indeed. And if you have the space and want a cheap Teensy LC, use this one here:
http://www.aliexpress.com/item/Free-Shi ... 39f7&tpp=1

I only have received the 312u4 one, and i can confirm it works great as an alternative to the Teensy.
So i can't speak from personal experience if the other 2 are working as a USB HID.
But from what i've read, they should be good to go.

Edit. After some research, yes. You can use them as a USB HID: https://www.obdev.at/products/vusb/index.html

[Camble]

I think I'm still going to have to remove some more microUSB ports to reduce the profile