SparkFun Electronics Comments

Customer #897160 on DEV-14082 - STEMTera (Black)

2017-03-02T02:49:37-07:00

you can also use LUFA to take advantage of the full USB capabilities, sample projects, keyboard, joystick, MIDI are located here

https://github.com/STEMTera/STEMTera-Breadboard-B328-LUFA-Demo-Project

Customer #897160 on DEV-14082 - STEMTera (Black)

2017-03-02T02:42:28-07:00

The contact are normally called clips. As far as I know, no company is selling the clips. For this board, the clips are custom made.

IgnacioV on DEV-14082 - STEMTera (Black)

2017-03-01T02:03:43-07:00

If you’re using an ATmega32U2 core in the IDE then yes. But if you’re only using the Uno part of it then no.

Customer #151249 on DEV-14082 - STEMTera (Black)

2017-02-26T05:32:34-07:00

A question to all: can one access the 32U2 pins via the Arduino IDE?

dalem50 on DEV-14082 - STEMTera (Black)

2017-02-18T20:15:46-07:00

It’s not as eloquent as the STEMTera, so no wonder they didn’t contact you.

OHoilett on DEV-14082 - STEMTera (Black)

2017-02-13T13:46:05-07:00

Where does one buy those breadboard contacts? And what are they called? Does anyone know?

Gary D. on DEV-14082 - STEMTera (Black)

2017-02-07T18:03:09-07:00

Funny how I developed a similar product 3 years ago and sparkfun didn’t contact me to produce it. Well played Stemtera.

https://forum.sparkfun.com/viewtopic.php?f=5&t=32260&p=143254&hilit=rfefx#p143254

Super Special Member #328782 on DEV-14082 - STEMTera (Black)

2017-01-31T11:08:15-07:00

can the case be safely opened to get to the board inside, or is the casing permanently or semi-permanently sealed or glued closed? Some may ask why, answer is cause i wanna, i like seeing inside the little black boxes :-)

Customer #146957 on DEV-14082 - STEMTera (Black)

2017-01-31T09:52:04-07:00

It’s a good idea, but I don’t get the price. I mean this is just an arduino mashed up with a breadboard. I could buy both of those for like $6 from China (maybe not the highest quality, but still, if I want to go for the best name brand stuff, $30 and still saving a lot).

kg6hxm on DEV-14082 - STEMTera (Black)

2017-01-31T07:57:50-07:00

There’s reasons for the price, mainly it’s this much because it’s brand new. As you get more and more produced, then the price can come down. I just got mine in the mail from the KS, and I believe it worked out to about $35/ea.

Customer #897160 on DEV-14082 - STEMTera (Black)

2017-01-30T15:42:41-07:00

@Chiel & @Luc,

Yes you are right.

Please accept my apology for the confusion.The project started with a Developers' Edition that has 328P+16u2, a batch of these were sent to the early adopters. As the funding increased to a level, the Production Units have been upgraded to 328P+32u2.

All SparkFun’s STEMTera Breadboard are the upgraded version with 328P+32u2. Hope this clarifies the confusion.

MrTangent on DEV-14082 - STEMTera (Black)

2017-01-30T01:53:25-07:00

Looks like it’s called the ATmega328PB:

whispers on DEV-14082 - STEMTera (Black)

2017-01-29T19:20:18-07:00

hi,….

can you provide a link to this:

“Atmel now has a pin compatible upgrade, the atmega328B with TWO usarts……”

thanks!

whispers on DEV-14082 - STEMTera (Black)

2017-01-29T19:15:59-07:00

great idea. but that price is insane. completely missing the mark for the target audience (or trying to take advantage).

politics aside, still nice product (but I wont be buying one at that price point)

Luc on DEV-14082 - STEMTera (Black)

2017-01-28T11:29:48-07:00

I was going to say look at the kickstarter or product page, but just looked again, and the kickstarter page refers to there being a 16u2 in one pllace and the 32u2 elsewhere.. I suspect they started out with a 16u2 and migrated to the 32u2, but am just supposing. damn

NorthernPike on DEV-14082 - STEMTera (Black)

2017-01-28T11:24:09-07:00

It’s for prototyping. It makes perfect sense. Besides, if the product takes off, as I suspect it will, an IC version could be offered for us who like to teach 6, 7 and 8 year olds that they can do what an Electrical Engineer with a 4 year degree from a prominent university can do. Yet, in that process, mistakes are made, things are forgotten, code is wrong, jumpers short out as well as many other accidents that can damage the poor little micro. Shit happens. We’re only human. Unless your member /#432989, then your perfect and nothing wrong happens. Must be nice. :))

Chiel on DEV-14082 - STEMTera (Black)

2017-01-28T11:15:56-07:00

I think he is confused by the mention of both the 16u2 and 32u2 . Only one of them is used on any board, but the description sounds like there is a 16u2 and a 32u2 besides the 328p on a board.

Chiel on DEV-14082 - STEMTera (Black)

2017-01-28T11:12:26-07:00

I understand the confusion. It is pretty weirdly worded

The serial bridge is EITHER a 16u2 or a 32u2. Apparantly some of the boards have a 16u2 instead of the more spacious 32u2, perhaps they are older or there was trouble sourcing enough 32u2. That is why they mention both of them (I think).

So when you buy this you get one with either a 328P+16u2 or 328P+32u2… or there may be just a typo.

Customer #432989 on DEV-14082 - STEMTera (Black)

2017-01-28T01:08:36-07:00

Cool, combine Arduino with Lego seamlessly. If I didn’t already have a butt-load of both I’d buy one!

Customer #432989 on DEV-14082 - STEMTera (Black)

2017-01-28T01:07:29-07:00

If blowing out micro-controllers is a common occurrence with you you might try watching some videos on YouTube about electronics and Arduinos. It isn’t rocket-surgery and the amount of resources on the web today for noob electronics people is astounding. I’ve been tinkering with Arduino for 7 years and have never nuked a single component (at east not accidentally :-), much less an Arduino.

Dragon88 on DEV-14082 - STEMTera (Black)

2017-01-27T22:21:59-07:00

A DIP IC makes absolutely no sense for a compact design like this.

amateurasu on DEV-14082 - STEMTera (Black)

2017-01-27T16:26:03-07:00

Yes, I’m crystal-clear on the two-chips aspect of it… But they make reference to 3 different chips.

NorthernPike on DEV-14082 - STEMTera (Black)

2017-01-27T16:21:22-07:00

Well, convinced me. Very cool idea. Waiting for its arrival.

However, I do have to agree with Mr. thegrendel about the SMD. What can I say, some of us take chances. So what if it adds a couple 2 or 3 mm to its height.

Beans on DEV-14082 - STEMTera (Black)

2017-01-27T12:48:23-07:00

Simple. Yet genius. So glad someone came up with this.

scharkalvin on DEV-14082 - STEMTera (Black)

2017-01-27T10:53:05-07:00

Two gripes.
1: The SMT versions of the atmega328 have 8 analog inputs, but only 5 of them are used on the arduino. In a new design why not bring these pins out someplace, extend the Arduno footprint a bit. 2: Atmel now has a pin compatible upgrade, the atmega328B with TWO usarts, TWO spi interfaces, and TWO I2C interfaces. Plus the usarts can be used in SPI mode (so you have FOUR of them). True some pins are used in multiple ways so you can’t use all of these things at the same time. Why not use this part in new designs?

Luc on DEV-14082 - STEMTera (Black)

2017-01-27T10:43:08-07:00

Looks like it uses the 328 for uno compatibility, and the 32u2 for USB serial comms.. and exposes the 32U2 so you can program that too..

dksmall on DEV-14082 - STEMTera (Black)

2017-01-27T09:18:28-07:00

Yes, now I see it, thanks!

thegrendel on DEV-14082 - STEMTera (Black)

2017-01-27T07:30:45-07:00

Interesting idea, but it would be nice if the ‘328 were a socketed hole-through chip, rather than an SMD. That way, if you burn out the '328 – an all too common event when tinkering or developing a project – it’s a simple $4 fix, rather than having to throw out a $45 project board.

amateurasu on DEV-14082 - STEMTera (Black)

2017-01-27T06:50:06-07:00

So, it’s described as having 2 microcontrollers, but I’m seeing references to a 328P, a 16U2, and a 32U2. What’s actually in there?

Chiel on DEV-14082 - STEMTera (Black)

2017-01-26T11:20:22-07:00

If you look carefull at the rows of headers to the right of the logo and leds on the breadboard (opposite of the reset button and between the actual breadboard and power rails) you can recognize the typical arduino layout. Even the little offset between the 2 headers (d1-d7 and d8-scl) is there.

It is a bit hard to see at a glance, but yeah it is indeed compattible. It really is mostly a arduino with a breadboard around it and having also the serial bridge’s IO pins broken out.

dksmall on DEV-14082 - STEMTera (Black)

2017-01-24T14:39:32-07:00

You mention it works with 1000’s of shields but I don’t see the typical header layout on this breadboard. You know, the one with the single set of pins .05 off from the others so you can’t plug it into a traditional breadboard.

Customer #894352 on DEV-14082 - STEMTera (Black)

2017-01-24T12:46:34-07:00

Would it be possible to include an fun project book with the STEMTera? Just something with a dozen or so projects suitable for new and young project starters?