Teensy 2.0 VS Teensy 3.0

[tricheboars]

Any advantages to 3.0 over 2.0?  3.0 is cheaper on the PRJC store.  This is what confuses me. I am wondering why. I am looking to purchase a few for prototyping.


http://www.pjrc.com/teensy/

[fohat.digs]

Ask Soarer. The 3.0 looks to cost a little more .... ?

The voltage is the deal-killer for keyboards, don't they need 5V?

[tricheboars]

Ask Soarer. The 3.0 looks to cost a little more .... ?

The voltage is the deal-killer for keyboards, don't they need 5V?

hmm. good point about the power. i think i will go with something that is tried and true rather than the "new thing". thanks.

please feel free to continue this discussion

[nullstring]

Ask Soarer. The 3.0 looks to cost a little more .... ?

The voltage is the deal-killer for keyboards, don't they need 5V?

hmm. good point about the power. i think i will go with something that is tried and true rather than the "new thing". thanks.

please feel free to continue this discussion

Teensy 3.0 is a completely different architecture than the Teensy 2.0
They aren't really direct competitors.

[mkawa]

the teensy 3.0 is a 32-bit arm cortex based micro platform. all the previous teensies were 8-bit atmel avr micros. HUGE difference in both computing power and in power envelopes. one nice thing is that i believe they use an atmel arm chip in the 3.0, so atmel studio will work with all the teensies and handle cross-compiling 100% transparently.

[tricheboars]

so with that additional power are their advantages to using a teensy 3.0 over a teensy 2.0 for mech keyboards?

[Hellmark]

Not really.

[AcidFire]

the teensy 3.0 is a 32-bit arm cortex based micro platform. all the previous teensies were 8-bit atmel avr micros. HUGE difference in both computing power and in power envelopes. one nice thing is that i believe they use an atmel arm chip in the 3.0, so atmel studio will work with all the teensies and handle cross-compiling 100% transparently.

Actually I believe Paul is using a free scale in the teensy as all the Atmel ARM chips are a bit more expensive and currently not nearly at a good volume capacity either.

For our uses, a Teensy 3.0 in general is a bit overkill, until you get into a few more advanced features or have need of the extra speed to control more peripherals like I'm currently doing in my project. The ARM chips are also becoming available at prices lower than the ATMEGAs that might normally be used in their place.

[mkawa]

that would make sense. freescale has a much more solid lineup for cortex socs.

the ATtinys are still cheap, but the high GPIO atmegas are becoming more expensive as atmel winds down their atmega production and winds up the cortex based production