Stream

Join this community to post or comment
 
Have you RSVP'd for "Make Day"?  It's TOMORROW! What will you make???
A full day of making things together!  Start a new project or work on an existing one.  It doesn't matter as long as you come and do it with us.  We'll hack on stuff all day and end with a show & tell. Got extra electronics parts you want to sell/trade?  Bring them for swap & shop. Don't have a project?  This year we're trying something new and adding a group build activity.  Follow this thread for details about a reflow oven build being discusse...
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
We still have a few of these NashMicro T-shirts available.  What's left will be available at "Make Day" for only $20!
http://www.meetup.com/NashMicro/events/220628197/
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
Here's a handy tool for help making circuit protection decisions.
2
1
Kevin Groce's profile photo
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
NashMicro Makers! Want to compete on TV???
“@ianlee74 New series set in your world featuring Makers, Inventors, and Tinkerers! Request an app! Please Share!”
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
LittleBits and Shapeways are hosting a "Smarter Than Your Home" IoT design contest. 
1
Add a comment...

Ian Lee, Sr.
owner

Events  - 
 
* SPECIAL EVENT *
Nashmicronians! Initial State is hosting an Intro to Raspberry Pi IoT workshop next week and we get first dibs.  It's completely FREE and you'll have an opportunity to buy a RasPi v2 kit for a discount if you want.  See all the details for the workshop at the link below and RSVP now if you want a spot. 

https://www.eventbrite.com/e/piot-101-introductory-workshop-for-the-raspberry-pi-internet-of-things-tickets-16124628197

They will have two kits available to buy.  The first is the Canakit Raspberry 2 Ultimate Starter Kit (http://www.canakit.com/raspberry-pi-starter-ultimate-kit.html) that has a couple of extra sensors thrown in (https://www.adafruit.com/products/381 & https://www.adafruit.com/products/375).  This kit will be $100 if you sign up for a paid Initial State account (which means you are saving tax + shipping + $15 just for signing up). Everyone who goes through the workshop will get a 20% discount on a paid Initial State account (Starter plan will be $7/mo, Professional plan will be $15/mo).  

The second kit will have the Canakit plus those sensors but also includes a 5” LCD (https://www.adafruit.com/products/2260), a wireless KB/Mouse (http://www.amazon.com/Logitech-Wireless-Combo-MK270-Keyboard/dp/B00BP5KOPA/), a 1 foot HDMI cable, and a 1 foot micro USB cable (for a tight connection to the LCD).  This kit will be $200 if you sign up for a paid Initial State account.  
1
Ian Lee, Sr.'s profile photo
 
Folks, I got word from the hosts and you've already filled up this workshop! Never fear, though, if you didn't get in. They're planning to do several more in the coming weeks. Stay tuned!
Add a comment...
1
Add a comment...

Ian Lee, Sr.
owner

Events  - 
 
* HELP *  Nashmicronians! I know this is very last minute but my planned help had to back out.  Anyone interested and available to help me teach a soldering workshop at the Green Hills branch of the Nashville Public Library * TODAY * at 5PM - 8PM?  I'll be heading out in about 1 hr.  If you can, please call me.  Thanks!
1
Ian Lee, Sr.'s profile photoSteve Ghertner's profile photo
2 comments
 
It was very fun. I'm glad I was able to out. 
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
Some of you Nashmicronians may be interested in this.
1
Add a comment...

Howard Patterson

Community Info  - 
 
Wow, this is impressive.
1
Ian Lee, Sr.'s profile photo
 
Indeed!  Gives me metal lathe envy.
Add a comment...

About this community

We are a group of microcontroller enthusiasts in the Nashville, TN area. We meet on the first Tuesday of every month at Correct Care Solutions. All types of microcontrollers are welcome. Come join us!

Ian Lee, Sr.
owner

Discussion  - 
 
Spy cam that needs no battery and can [potentially] stream video indefinitely.  Cool concept!
1
Add a comment...
 
These LED filament strips are really cool. What will you make with them?
http://electricstuff.co.uk/ledfilclock.html
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
Join in the Pre-Arduino Day 2015 Festivities with Atmel. As Makers, there's one special occasion that we just can't help but love: Arduino Day! It is a 24-hour celebration – both official and independent – where hobbyists, tinkerers and even some experienced engineers from all over the world ...
1
Add a comment...
 
Anyone still interested in building these as a group build during Make Day? I just priced it and they would be about $200 each according to the author's design.
I've been wanting to build a reflow oven forever.  This one is very nicely done.  Any Nashmicronians interested in doing a group build?  Maybe as part of… - Ian Lee, Sr. - Google+
1
Ian Lee, Sr.'s profile photo
 
If anyone's interested, I need to know ASAP so I can order the PCBs and get them before Make Day.
Add a comment...
 
Circuit to Implement Quine-McCluskey Algorithm using Arduino Mega

Read more at:

http://www.haberocean.com/2015/03/quine-mccluskey-algorithm-implemented-using-arduino-mega-part-1/
final year Engineering project example, quine mccluskey algorithm solver circuit and program using arduino or microcontroller, how to design a quine-mcluskey implementation circuit
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
Very cool site with great visuals and animations that demonstrate many mathematical concepts used in digital signal processing.
This text is designed to accompany your study of introductory digital signal processing.1 It's an eccentric piece of not-so-rigorous literature with a preoccupation for explaining things using interactive visualizations, animations and sound.2 My goal is to explain the Discrete Fourier Transform ...
1
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
Some really great tips here.  Anyone designing their own PCBs should read this.
Design techniques for printed circuit board (PCB) to allow a wide variety of voltage regulators and potentiometers. Also, how to make it easier to solder holes by adding circular pads, how to make test points, reduce heat with fill patterns, and more.
1
Add a comment...
 
I have a quick question for the electronics gurus out there. I am trying to drive a 6-12v siren from an Arduino. I would like to use a single 12v (or 9v) input voltage, such as a wall wart. I understand that the arduino can be fed 5-12v with no problem. So would I want to use a transisitor to drive the sirent, such as whats being done here:
http://www.whatimade.today/lets-make-some-signal-processing-with-an-arduino/

In my quest to find the proper solution for my problem, ive come across things like opto-couplers, DACs, LM386's. Ive got a little understanding of some of these components, but not enough to feel comfortable uaing them. Any help would be greatly appreciated. Thanks!

1
Brian Flauto's profile photo
5 comments
 
So I got the TIP31c's in the mail today. Wired it up and it worked just fine on a 12v powersupply with a 300ohm resister. However when I tried a 6v lanter battery as a power source the circuit would trip the transistor, but it wouldnt release it. The siren was stuck on. My guess is the siren (which is rated 6-12v) drew too much power and bombed the arduino. Can anyone lend a guess as to why the transistor would not reset? The code side of things basically sets the output pin high whenever an ultrasonic range detector detects an object within a specified range. When the object is out of range it sets the output pin low. The output pin is connected to the base of the TIP31c, thru a resistor. Any thoughts?
Add a comment...

Ian Lee, Sr.
owner

Discussion  - 
 
The 2015 Hackaday Prize is a GO!
http://hackaday.io/prize
1
Kevin Groce's profile photo
 
beat me to it :D 
Add a comment...
 
This looks like a fun event. Unfortunately, I have another commitment that weekend but I'd love to see some Nashmicronians go up to Louisville, KY and bring home the prize!
Online Ticketing for Hack the Home powered by EventbriteThis is a 2-day event where you can make Sci-Fi become reality! Hack the Home is a Hackathon where...
1
Add a comment...