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31  Using Arduino / Project Guidance / Re: aurdino cc1101 project on: February 15, 2014, 01:44:36 pm
What is cc1101 ? 
Do you have a datasheet?
32  Using Arduino / Project Guidance / Re: What to keep on hand? on: February 15, 2014, 01:42:04 pm
For project boxes I like to use old cigar boxes found at fleamarkets or thrift stores. Easy to drill holes into.
This project is a temperature monitor.
http://wp.me/a1tKHS-fE 


I also have been liking these plastic boxes from Modern Device.
http://moderndevice.com/product/abs-plastic-project-boxes/
33  Using Arduino / Project Guidance / Re: What to keep on hand? on: February 15, 2014, 08:54:44 am
I second  taydaelectronics.com as a good resource for cheap parts to stock.
34  Community / Bar Sport / Re: Famous Italian "exports" on: February 14, 2014, 03:08:01 pm
NOOOO!
35  Community / Bar Sport / Re: Famous Italian "exports" on: February 14, 2014, 01:47:01 pm
What about the famous scooters Vespa & Lambretta?

36  Using Arduino / Project Guidance / Re: Practices for deploying in sub 0 environments during winter on: February 14, 2014, 01:40:16 pm
I am currently using a JeeNode to monitor the outside temperature.
So far it works great where I am.
To has gotten down to 2 F with no issues.
I did use the freezer method in testing it a while back when it wasn't so cold.
37  Using Arduino / Project Guidance / Re: How to make a hand held billing device using arduino/any processor? on: February 14, 2014, 01:35:08 pm
I bought mine from Sparkfun. https://www.sparkfun.com/products/10438
The cost was about $50 US.
38  Using Arduino / Project Guidance / Re: How to make a hand held billing device using arduino/any processor? on: February 14, 2014, 12:47:16 pm
Check out this project I did a while back using a printer.
http://electricprojects.wordpress.com/2012/01/16/lucly-panda-fortune-teller/
I used a library from a website called Bildr .
http://bildr.org/2011/08/thermal-printer-arduino/
This is a thermal printer, so no ink needed.
39  Community / Exhibition / Gallery / Re: Phenakistoscope on: February 07, 2014, 06:47:10 am
Very nice job.
40  Community / Exhibition / Gallery / Re: Arduino-based Burglar and Fire Alarm System on: February 07, 2014, 06:42:40 am
Nice job!
Especially when cutting the wire triggers the alarm.
41  Using Arduino / Project Guidance / Re: What Arduino Product is right for this wireless project? on: February 07, 2014, 06:38:30 am
Not to confuse you, but I like JeeNodes for wireless.  Arduino & wireless all in one small package.
Very easy to use and come with lots of examples and a library.

http://moderndevice.com/product/jeenode-v6-kit/
42  Using Arduino / Project Guidance / Re: Capacitor / power for Xbee in cold weather question on: November 05, 2013, 05:48:43 pm
The Xbee needs 2.1 - 3.6 V.
Thanks, I'll give the diode a try.
43  Using Arduino / Project Guidance / Capacitor / power for Xbee in cold weather question on: November 04, 2013, 06:58:14 pm
Hi
I'm making a temp sensor for a greenhouse that will use a Series 2 xbee to communicate with a base station inside a house.
The base station has an Uno and a 20x4 LCD screen.    I already have this working.
My question is about the sensor in the greenhouse. 

I plan on having a tmp 36 sensor connected to the xbee and am thinking of using this battery which is 3.7 v .  http://www.adafruit.com/products/354
My question is about power and capacitors. 
The Xbee needs 3.3 v and the battery supplies 3.7 v.
If I use a 3.3 v power regulator like this https://www.sparkfun.com/products/526
do I need to add capacitors to keep the power supply smooth?
Also what size capacitor and do I need ceramic capacitors as I read electrolytic capacitors have liquid in them and can freeze.
Also how will cold weather affect battery life?

Thanks.





44  Using Arduino / Project Guidance / Re: Rotary mobile phone on: November 03, 2013, 07:49:53 am
Sparkfun doesn't sell this rotary phone anymore, but maybe the documentation can help you.

https://www.sparkfun.com/products/retired/286

https://www.sparkfun.com/tutorials/51
45  Community / Bar Sport / Re: How to handle collisions for a flying robot - video on: November 02, 2013, 06:46:10 am
Nice job.  Would like to see closeups of the robot without the ball frame.
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