Author Topic: Adafruit Trinket - an ATtiny85 microcontroller board  (Read 8345 times)

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Offline xrunnerTopic starter

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Adafruit Trinket - an ATtiny85 microcontroller board
« on: September 10, 2013, 01:46:53 am »
Seems to be a new offering by them, in 3V and 5V versions  -

http://learn.adafruit.com/introducing-trinket/introduction

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Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #1 on: September 10, 2013, 10:59:13 am »
Given that you have only a few pins, making a board for it doesn't seem to be that efficient.

Programming the naked chip may be a better way to go.
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Offline andersm

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #2 on: September 10, 2013, 04:17:38 pm »
$8 is pretty much for something intended to be a throwaway/jellybean part.

Offline JTR

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #3 on: September 10, 2013, 05:45:52 pm »
Not sure how long people would bother with the old V-USB LOW SPEED AVR platform when today you can get native FULL SPEED USB support in a 14-pin PIC that is cheaper too and only requires two caps. Even the existing PC side code can be reused with little or no change.
 

Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #4 on: September 11, 2013, 01:59:34 am »
I have a few minimus: at90usb162, with more pin out, native usb, etc. for $7/each.
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Offline westfw

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #5 on: September 11, 2013, 06:59:34 am »
Quote
I have a few minimus: at90usb162, with more pin out, native usb, etc. for $7/each.
Cute.  Are those still around?  I can only find the "minimus 32", and only from UK-based stores...
 

Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #6 on: September 11, 2013, 10:58:40 am »
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Are those still around?

I am not sure. I got mine years ago.
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Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #7 on: September 13, 2013, 06:23:03 am »
How about just a Tiny 2313 soldered directly to an LED Matrix?

http://hackaday.com/2012/10/12/led-matrix-pendants/

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Offline amyk

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #8 on: September 13, 2013, 11:33:35 am »
$8 is pretty much for something intended to be a throwaway/jellybean part.
I don't get that impression here, $8 is rather expensive for a PCB that has not much on it.

But then again almost everything Adafruit sells is amazingly overpriced...
 

Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #9 on: September 13, 2013, 11:56:25 am »
Well, they do contribute a lot of documentation and stuff so in a way, you're paying to keep that going.
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Offline andersm

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #10 on: September 13, 2013, 06:25:59 pm »
$8 is pretty much for something intended to be a throwaway/jellybean part.
I don't get that impression here, $8 is rather expensive for a PCB that has not much on it.
That's what I meant, the phrasing just got mangled.

Offline MatCat

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #11 on: September 13, 2013, 06:29:25 pm »
Personally I would just go on digikey and spend the $1.18 for an attiny85 and use it direct, but there are those that find a pre-made board useful, to each their own :)
 

Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #12 on: September 14, 2013, 01:39:41 am »
You can do this also:


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Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #13 on: September 14, 2013, 11:26:07 am »
Quote
$8 is rather expensive for a PCB that has not much on it.

Yes. And there should definitely be a substantial discount to compensate for the pain of using the arduino ide, :)
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Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #14 on: September 14, 2013, 08:36:53 pm »
Nothing stopping anyone from using Atmel studio.
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Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #15 on: September 15, 2013, 12:48:10 am »
Check out the new STM32F429 Discovery.
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Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #16 on: September 15, 2013, 07:54:46 pm »
They also announced a board called the Gemma which is basically a small Flora board based on the Tiny85.
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Offline lgbeno

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Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #17 on: September 15, 2013, 08:04:10 pm »
This thing is just a ripoff of the digispark that I bought on Kickstarter last year!

I didn't think Adafruit would do something like that...
 

Offline Stonent

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #18 on: September 15, 2013, 08:12:56 pm »
I'd hardly call it a ripoff. Adafruit appears to just have taken an existing product that they have and shrunk it to an ATtiny85.

And even if they did, the Digispark has the Open Hardware logo on it anyone can rip it off.
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Offline MatCat

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #19 on: September 16, 2013, 05:08:34 pm »
Hard to call it ripping it off when it's only an attiny85, some bypass caps, and a USB connector ;)
 

Offline lgbeno

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Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #20 on: September 18, 2013, 01:50:16 am »
I guess "rip off" was a little extreme...

Reminds me of the Digispark that I bought on Kickstarter...
 

Offline amyk

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #21 on: September 18, 2013, 10:48:47 am »
The only one being ripped off is the customer... ::)
 

Offline dannyf

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Re: Adafruit Trinket - an ATtiny85 microcontroller board
« Reply #22 on: September 19, 2013, 11:27:28 am »
Quote
The only one being ripped off is the customer

Absolutely. With $7.99, you could have gotten LM4F120XL from TI; or buy a few of the bare chips ($1/each?).

$7.95 for a 8pdip chip is a lot of money.
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