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1  Using Arduino / Displays / Re: LCD board for Serial Conversion DIY on: April 17, 2014, 08:26:54 am
Just a pick to prove it works.

2  Using Arduino / Displays / Re: LCD board for Serial Conversion DIY on: April 17, 2014, 08:12:56 am
Guess I should have uploaded a pic.

3  Using Arduino / Displays / LCD board for Serial Conversion DIY on: April 17, 2014, 07:35:03 am
So I use HD44780 compatible LCDs alot, and got tired of using up so many pins on my Arduino. I did some research and found this alternative.  http://playground.arduino.cc/Main/LiquidCrystal

I took it a step further and design a board, one sided for home etching, and it works PERFECT.

It utilizes a shift register (74HC595N) and the library replacement via the site listed above. The liquidcrystal library, after the upgrade, works as the old, only that you need to declare the SPI library when using the designed board.

I've attached the Eagle files for my rendition of a homemade interface.

4  Community / Exhibition / Gallery / Parallel LCD to Serial on: April 03, 2014, 04:39:08 pm
So, I have a butt load of HD44780 compatible LCD displays, but always hated using them because they take up way too many pins on my Arduino projects.... Until I saw this http://42bots.com/tutorials/arduino-controlled-lcd-using-a-shift-register-and-the-spi-library/

I created a small board to aid in making this so, and it works like a charm!

Here it is. I'll label later.



5  Community / Bar Sport / Re: Arduino compatible ZIF socket, WTF? on: January 31, 2014, 11:21:03 pm
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Where did you get that from, mine doesn't work at all on Arduinos but funnily enough works just fine on a bare Atmega328. I haven't investigated yet but my money is on the bootloader, they have been known to play havoc with lead-free solder which as we all know is non-hobbyist (and therefore non-Arduino) compatible.

Oh, I got mine from China, of course. I was using a propane torch and lead pipe solder for a while, but noticed I kept having to buy new Unos!. I bought some off the shelf solder, and mixed it with Atmega328p compatible solder, and it works most of the time.

What are your experiences with the Arduino compatible ashtrays? I was thinking of buying one, but I can't find any compatible cigarettes her in Australia.
6  Community / Bar Sport / Re: Arduino compatible ZIF socket, WTF? on: January 31, 2014, 10:58:08 pm
Sorry,

 maybe I spoke too soon. I had some bad vibes from a poster (to remain unnamed) that kinda kicked my jiggle a bit.

In retrospect, I do have an arduino compatible soldering iron!

7  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 10:30:07 pm
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Yes.
And what it has to do with analog reference, I have no idea.
Tell me exactly what to do with the Aref pin?

So why are you on this forum??
8  Community / Bar Sport / Re: Arduino compatible ZIF socket, WTF? on: January 31, 2014, 10:18:38 pm
So many people running down the Arduino platform. Why are you guys even on the forum? This platform, and this forum, should be a place to share ideas, and not a place to strut your differences.

Arduino, yes, is a carrier for a microcontroller, but what better way to introduce them than a platform that's easy to use, and easy to duplicate! Remember, it's ALL open source.

I have no qualms with an advertisement stating a ZIF socket is Arduino compatible. That just means it has 28 pins, and is in thin line package (to match pins on the uno socket).

So the programming language is a ripoff from C++? So what!

We all need to be a bit humbled and take Arduino for what it is. A platform for learning. There's always room for learning, and I think those blokes in Italy did a DAMN good job of supplying a medium to promote that.


9  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 09:35:54 pm
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Its not about the ego.
The 328 doesn't even need a circuitboard.

Just cross the Vcc, Avcc and the Gnd pins on the chip and its a standalone Arduino.

WOW, So I don't need a Crystal, or a 5v power supply, or anything! Not even a circuit board!?. Wow. So all I have to do is solder wires straight to the chip? Holy Cow, that makes things ALOT easier!

And yes, I buy virgin chips, and burn my own bootloader. I've made a guitar pickup winder, a BBQ PID fan temp controller, and a web based home security system with the 328. I posted this to encourage young starters to make their own. We can't all be as smart as you.

You heard it. All you have to do is solder the 5v, gnd, and reference pin together, and it will WORK. No circuit board required. Who needs digital/analog IO anyway?

10  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 06:09:25 pm
Thanks CrossRoads,

Yeah, I looked into the "liquid Tin" thing. A bit expensive for home etched boards. The light dusting of solder slug works for me. I actually thought about devising a solder bath (dip) type thing to tin my boards. My ADHD took me elsewhere.

Yes, 1 oz copper is standard, but 1 oz chinese copper clad boards (at least the person I bought from) are riddled with pits and the traces pull up with the slightest solder heat.  I have better quality boards on the way.

11  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 05:13:28 pm
Thanks Janost, for your oh so belittling response.

Yes, most people here know how to make a standalone Arduino, but some of us may be just starting to learn about microcontrollers, and how to use them. (as I am, after 46 years).

I just hope your knowledge of such is as big as your ego!. Give us little guys a chance to brag a bit when we figure something out!.

Cheers, mate!

12  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 04:49:55 pm
Sorry CrossRoads, forgot to mention the Toner. I print on thick magazine paper, and iron on. Sounds goofy, but it works just as well as that overpriced toner transfer paper sold in the US. I heat the board 1st, then apply the printed paper. Then I work the iron from center to edge for about 2-3 minutes, soak in water, and remove the toner with Acetone. Works PERFECT!

13  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 04:42:36 pm
Thanks Crossroads,

I never thought about th Aref, as I have never used it. I'll be sure to make your suggestions so, in version 9.1. .1.4.8.9.1.4.7.3.98.

Yeah, the vinegar thing works great! It really helps if you have a circuit board with a ground plane, as that keeps the amount of copper to be etched to a minimum. It took about 20 minutes to etch this board.

I also take it a step further, and flux the whole board, and file some solder dust with a solder slug and "tin" the entire board. This helps with cheap chinese 1oz boards in that it gives a bit of "heat sink" when soldering, and also keeps the copper from oxidizing. Here's a pic of the back of the board.

14  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 04:09:21 pm
And now, the board porn.

Also, I learned a great etching method using vinegar, hydrogen peroxide, and salt mixture. It takes a bit longer than Ferric Chloride, but alot cleaner if you spill 3 gallons of it (don't ask).

15  Community / Exhibition / Gallery / Re: Standalone Arduino on: January 31, 2014, 03:58:38 pm
Mistake on the txt. The voltage in says 5 volts. Should be 7-12 volts in as there is a 5 volt regulator.
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