Neutrino: The tiny 32-bit Arduino Zero compatible!

• Neutrino: The tiny 32-bit Arduino Zero compatible!
  Posted by sswift on 04 May, 2015 15:34
• https://www.kickstarter.com/projects/rabidprototypes/neutrino-the-tiny-32-bit-arduino-zero-compatible
  
  Hey guys,
  
  This is my Kickstarter campaign.  I've been waiting a year for the Zero to come out so I could design a board like this and start using it in my own projects, and when it was released unexpectedly a few weeks ago I knew I'd have to act fast if I wanted to be first to market with it.
  
  Thankfully a month earlier I'd learned of a new PCB manufacturer called MacroFab, and they were able to order the PCBs and assemble a prototype for me quickly.  I'll be ordering a second from them soon with the final layout; I moved a few parts around to improve the routing.
  
  The design will be open source. 
  
  I just got the pinout diagram done last night:
  
  
  
  
• #1 Reply
  Posted by zapta on 28 May, 2015 21:17
• Very nice!
  
  Does it support a debugger?  Is it mbed.org compatible?
• #2 Reply
  Posted by sswift on 04 Jun, 2015 05:17
• It supports the Atmel ICE for debugging. 
  
  As for mbed, I'm not familiar with it, and I can't for the life of me find a list of hardware requirements for using it.  It seems to require an arm processor, so if that's the only requirement, then you're good to go?
• #3 Reply
  Posted by dadler on 23 Aug, 2015 03:31
• Looks like shipment time is coming up!
  
  https://www.kickstarter.com/projects/rabidprototypes/neutrino-the-tiny-32-bit-arduino-zero-compatible/posts/1318932
• #4 Reply
  Posted by sswift on 23 Aug, 2015 11:23
• Yep!  They're being manufactured now, and should start shipping around the 15th. 
  
  Here's the final pinout diagram:
  
  
• #5 Reply
  Posted by Rolo on 24 Aug, 2015 16:12
• Nice project ! think this "Nano" format is great for hobby use or to leave it in a finished project.
  As for the question "Is it mbed.org compatible?" on https://developer.mbed.org/ looking at platforms, I see no Atmel MCU's so I think the answer is no.
  
   
• #6 Reply
  Posted by tom66 on 25 Aug, 2015 18:10
• Isn't 500mA from a SOT23 regulator (?) a little optimistic... ? I'd derate to 100mA if I were you...
  
• #7 Reply
  Posted by sswift on 25 Aug, 2015 20:06
• Quote from: tom66 on 25 Aug, 2015 18:10

  Isn't 500mA from a SOT23 regulator (?) a little optimistic... ? I'd derate to 100mA if I were you...
  

  
  I don't think so.  With a 4.5V input, you're talking a little over half a watt.  Thermal resistance is 184C/W to ambient, so temperature could rise to 110C over ambient, so as long as ambient is below 40C, that's below the 150C max.  Plus the regulator will shut down if you exceed the max.
  
  Now, granted you wouldn't want to get anywhere near that temperature, but I went under the assumption that folks would want to know the peak current the regulator could deliver, not the continuous.  It's unlikely anyone would be drawing 500mA from this tiny thing continuously.
  
  Also, if I were a newbie and I saw a limit of 100mA, I would assume that was the peak current the regulator could deliver and I would be constantly worried about exceeding that, even briefly.