Teensy 3.0 USB Dev Board 14.75

[kolonelkadat]

Limit 4 per customer. Orders with more will be charged $14.75 for the first 4, then $19.00 each for any quantity beyond 4 pieces.

http://www.pjrc.com/store/teensy3.html

[fohat.digs]

It is my understanding that the 3.0 model is the wrong voltage for USB keyboards.

[AKmalamute]

it's 3.3v instead of 5v for the 2.0 and 2.0++ but I don't know enough to say if that's a show-stopper.
http://www.pjrc.com/teensy/index.html

you could drive all your LEDs with it if you didn't mind having two controllers ... make your own Ducky Yellow, with RGB LEDS, maybe ... again, no idea personally.

[kolonelkadat]

Its a 3v3 µC, but it has a 3v3 regulator to convert the 5v from usb. So I dont think that would matter at all for just a normal keyboard. Can the regulator source enough current for led backlighting is a reasonable question though. on that, I dont know, but I doubt it. I doubt it very much. Probably best to tap off the 5v from usb and use the µC+transistors to power the leds.

The only complaint ive seen is that no one has written a keyboard firmware for it since its an ARM instead of an AVR.

[Soarer]

Thanks for the heads up - I was thinking of getting one to play with anyway, so I ordered 4

The 3.0 is fine for a keyboard controller, but not for a converter. It isn't the power supply that's a problem, it's that the I/O isn't 5V tolerant. It would need level conversion, which isn't too hard... but it is extra components.

Controller and converter firmware runs happily on the 8-bit Teensy 2.0, and doesn't need the extra speed, so there's little motivation to change up, IMO. A big benefit of using the AVR is that you can run pretty much the same code on either the Teensy 2.0 or the Teensy++ 2.0, depending on how many pins you need.

[joneslee85]

it's 3.3v instead of 5v for the 2.0 and 2.0++ but I don't know enough to say if that's a show-stopper.
http://www.pjrc.com/teensy/index.html

you could drive all your LEDs with it if you didn't mind having two controllers ... make your own Ducky Yellow, with RGB LEDS, maybe ... again, no idea personally.

what about removing the OEM controller with Teensy. Would it be working?

[terran5992]

Whats the diff between this and teensey 2.0?

[Grendel]

3.0 is based on a Freescale K20 ARM, 2.0 on an Atmel AVR. Very different chips.