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1  Using Arduino / Displays / Re: Cutting Rectangles in Plastic on: September 10, 2012, 10:11:37 pm
How the heck do you order? Do you have to call them?
2  Using Arduino / Displays / Re: Cutting Rectangles in Plastic on: September 10, 2012, 08:47:03 pm
Just in case you bugger it up, this link might be useful.

http://www.electro-tech-online.com/custompdfs/2012/02/rahmene.pdf

I imagine there are other sources but, surprisingly, I haven't found anything on eBay.

Wow, thanks. I did bugger it up (Which is why I originally inquired). I was looking for something just like this (in addition to methods on how to approach this in the correct manner next time smiley )

3  Using Arduino / Displays / Re: Cutting Rectangles in Plastic on: September 07, 2012, 07:10:22 pm
Thanks for all the advice.

I'm going to try out the solder with exacto and file method first. I'm going to use a metal ruler with quick-grips as a guide. I'm hoping this will keep the cut as close to perfect as possible.

If that doesn't work out so well, I will go on to try a router and/or the drilling / saw methods.
4  Using Arduino / Displays / Cutting Rectangles in Plastic on: September 06, 2012, 09:28:47 pm
Hey Guys,

I have a plastic enclosure I will be using for an Arduino project. I am also using a 16x2 LCD display and need to cut out a rectangle.

I was thinking about buying a soldering iron that has the exacto knife extensions. However, I'd like to know what other people do to cut shapes in plastic (Particularly those with corners).

Thanks
5  Community / Local Groups / Re: Austin Texas? on: August 30, 2012, 11:50:42 am
Hey Guys,

Sorry I didn't see this till now. I thought I would be notified if I received replies.

Anyways,

That Microcontroller monday sounds pretty cool.

Why does everything have to be so far north in Austin? LOL. I am pretty far south and that would take close to an hour for me (depending on the time of day).


Do you attend these meetings?
6  Using Arduino / Networking, Protocols, and Devices / Re: Problem with old Ethernet shield on: August 27, 2012, 04:21:09 pm
By the way, if you plan to put this into any production environment, I would recommend that you use the locally administered MAC address convention.

http://en.wikipedia.org/wiki/MAC_address
http://standards.ieee.org/regauth/groupmac/tutorial.html


In addition, if you are going to have more than one of these Ethernet shields/modules on your network, they all need to be unique. Do not re-use MAC addresses.
7  Using Arduino / Networking, Protocols, and Devices / Re: Problem with old Ethernet shield on: August 27, 2012, 02:30:03 pm
Which Ethernet chip are you using?

That code will only work with the W5100 chip.The ENC28J60 requires using different libraries that you can check out in the ETHER_28J60 Arduino examples.

I ask this because I got the same results as you until I realized that I was using the incorrect libraries (IP of 0.0.0.0).
8  Using Arduino / Networking, Protocols, and Devices / ETHER_28J60 WebClient Example with 1.0 on: August 25, 2012, 06:18:45 pm
Hey Guys,

Tried doing many google searches and can't seem to find anything. I'm trying to find a simple web client example or any way to send an HTTP request (Even without a response).

Does anyone know of any client examples? Everything in the examples is for a Server.

Thanks
9  Using Arduino / Sensors / Re: A couple of DS18B20 Temperature Sensor Questions on: July 27, 2012, 11:01:27 am
I guess the next question is: What do I do with the copper wire? Should I just ground that?
10  Using Arduino / Sensors / Re: A couple of DS18B20 Temperature Sensor Questions on: July 27, 2012, 10:58:02 am
Wow, I feel really stupid. Thanks.

I guess I was so impatient I completely overlooked it.


 smiley-red
11  Using Arduino / Sensors / A couple of DS18B20 Temperature Sensor Questions on: July 27, 2012, 10:47:48 am
I just received the DS18B20 today and want to begin testing this. However, I am confused about a few things before I even begin.

Let me start by saying that I got this particular version of the sensor from Adafruit: https://www.adafruit.com/products/381 which has the wire extension and is waterproofed.

Questions:

1. There are 4 wires and not 3 like all documentation points to (Red, Black, Yellow, Exposed copper)
2. What are each of these wires' functions?
  • I'm assuming Yellow is ground?
  • Red - DQ or VDD?
  • Black - DQ or VDD?
  • Exposed copper - ????


I was a little confused by these colors and the Exposed Copper wire

Thanks
12  Using Arduino / Project Guidance / Re: Reality Check for a Temperature Controller on: July 27, 2012, 09:18:31 am
Just stop by a store and buy a 5V wall wart or, even better, a "USB charger" that plugs into an outlet. Wire it in parallel with the AC leads to your relay.


Thanks . However, my preference would be to use only one slot from a wall socket.
13  Using Arduino / Project Guidance / Re: Reality Check for a Temperature Controller on: July 26, 2012, 07:57:49 pm
I don't understand.  Please explain.  I'm from Missouri. 

LOL. OK.

I'm just realizing that I have to power the controller as well as the appliance (Attached to the relay). Instead of using a battery, USB, or separate power source, I'd like to grab the power from the outlet that's on one side of the relay.

So, I would like the outlet to power both the appliance on the relay and the controller that handles everything. Obviously I will need to tap into the power before it gets to the relay and apply some sort of resistance. Just not sure what to do.

I hope I am being clear...  smiley-lol
14  Using Arduino / Project Guidance / Re: Reality Check for a Temperature Controller on: July 26, 2012, 06:54:10 pm
Pin 4 to ground.  You can switch about 40ma PER PIN.  With a coil relay there is a spike to energize the coil.  How man ma does the SSR take?  Then you can answer your question.

I just realized that I wasn't considering the fact that I need to power the board from the power input on the relay. Is this a huge endeavor? Or is this not that much of a big deal?
15  Community / Local Groups / Austin Texas? on: July 25, 2012, 09:35:10 pm
Would love to join a group to share thoughts and ideas.
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