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31  General Category / General Discussion / Re: Start learning Arduino on: January 20, 2013, 11:29:51 pm
Here's the book you need to read.

And watch all these videos:

32  Using Arduino / Installation & Troubleshooting / Re: Bluetooth works, uploading sketches does not. on: January 19, 2013, 04:48:53 pm
Where I work we have an assembly line that reaches a point where the embedded devices (some of which come from different manufacturers depending on the customer specs) in our product need to be programmed. We use a bluetooth device that is fairly common in our industry to program them (since the assembly line is moving it is easier than having wires hanging from the ceilings). 80 percent of the time I'd say it goes without a hitch, but one particular vendor's firmware fails to program much more than another's. We think it may have something to do with it not handling a interruption in programming very well or maybe it tries way too hard to handle an interruption in programming, we're not sure.  They also make a diagnostic program that is used after the entire product is assembled and stress tested. This diagnostic program also can use the same bluetooth device as the other part and it also seems to struggle mainly on the initial connection and once connected it seems to hold it steady.

I guess it is to be expected.  At any given time we could have up to 20 of those devices in use along with several wifi networks used for computers and other devices.

As always when dealing with wifi or bluetooth issues, I recommend eliminating all sources of interference, portable phones, other networks, etc.
33  Using Arduino / Project Guidance / Re: Arduino R3 as HID on: January 19, 2013, 02:45:56 pm
Could you explain in a way we could understand what the problems are that you're running into?
34  Using Arduino / Installation & Troubleshooting / Re: Unreliable programming with new Arduinos on: January 19, 2013, 02:35:49 pm
Please don't be insulted if I am mentioning things that you already knew, but since I don't know all the details, I'll try to cover it.

1. Is one arduino the only thing plugged in besides a mouse and keyboard?
2. How sure are you that you're on the right port? If you're using more than one arduino they might assign different ports when plugged in. Iv'e even seen the serial ports change when plugging into a different USB port.
3. Did you select the correct board?
4. Are you using the latest Arduino IDE release?
5. Is the terminal window open? (Close it)
6. Did you try to reboot?
7. Can you try force quitting any apps that have nothing to do with the arduino other than the finder (or whatever Mac OSX calls the user interface)?
8. Do you use any other devices that could be using a serial interface (modem, terminal emulator, usb to serial cable) ?

35  General Category / General Discussion / Re: Getting started with Arduino without the hardware? on: January 19, 2013, 01:41:53 pm
I saw an Uno for sale on Craigslist in my area for $10.
I've seen Mega 256 clone boards on Ebay for $17. (Branded as Funduino)

36  General Category / General Discussion / Re: How to make Arduino IDE work with STM32 stamp module like ET-ARM STAMP ? on: January 19, 2013, 01:36:41 pm
Actually looks like it may have been done.  I just googled et arm stm32 arduino and it was there (since 2009 looks like)

37  General Category / General Discussion / Re: How to make Arduino IDE work with STM32 stamp module like ET-ARM STAMP ? on: January 19, 2013, 01:29:40 pm
The Arduino IDE is designed to program Arduino boards. The boards have a bootloader designed to let the Arduino IDE talk to it. But the Arduino IDE has to support via the compiler the chip on the board that you're trying to program.

Short answer, probably no, unless you write the software for it to happen.
38  General Category / General Discussion / Re: What is the meaning behind the Arduino logo? on: January 19, 2013, 01:22:30 pm
Well as I said in my thread about what Arduino has taught me, imagine if NASA had Arduinos in the 1960s. Or wouldn't it be cool to completely replicate the computer systems from the Apollo era rockets with a handful of Arduinos?
39  General Category / General Discussion / What the Arduino has taught me about electronics on: January 19, 2013, 01:19:40 pm
Background, I'm not an electronics engineer but as a kid assembled a lot of Radio Shack (number) in One kits. I work in IT and have been using a computer since age 5. I would say on a high level near expert on computer hardware, but on the modular level, not component level.

Basically what the Arduino has taught me about electronics is:

The things that I always thought were hard are actually easy.
The things that I always thought were easy are actually hard.

Meaning that a lot of stuff you just plug 2 or 3 wires into it, and go straight to the pins and it works.
The hard part is wrapping my mind around things like taking a 2 pin component and then piggybacking a resistor across it in parallel for some particular reason.

My mind can't really comprehend taking resistors across power sources. I keep thinking, the resistor is causing some kind of short and is going to either heat up or eat the battery.

Also before the Arduino, I had never used all 3 pins in a potentiometer. I always went just two pins, middle and left. I think I sort of understand what using 3 pins is doing... Pulling a pin up or down rather than just down vs "not down" it makes sense now that I understand that pins on integrated circuits can or will float when not pulled up or down.

I really had thought I understood voltage vs current, but I would say only the very basic aspect of it. Arduino has taught me there's more than I thought. Voltage is sort of pushed, current is drawn. A .5 amp light bulb is not necessarily going to explode if it's on a 100 amp source if the voltage is the same as long as it is working correctly.  If it fails or shorts internally then yes it might blow up but that's when you need a fuse or circuit breaker.

Can you imagine what the American space program would have been like if you could have gone back in time to the beginning of it and handed them a box full of Arduinos and a method of programming them and basically said "These are what all the pins do, this is the programming language, don't ask how it works, it's all top secret." ?

40  General Category / General Discussion / Re: What is the meaning behind the Arduino logo? on: January 19, 2013, 12:52:40 pm
I always understood it as meaning the things you can do with it are endless.
41  Using Arduino / Installation & Troubleshooting / Re: Can't compile blink example with Mega2560 on: January 17, 2013, 08:53:53 pm
Latest Linux IDE is 1.03. I'd install that first.
42  Using Arduino / Installation & Troubleshooting / Re: Windows 7 and driver signing on: January 11, 2013, 06:50:14 pm
I think they should do a sticky on this.
43  Using Arduino / Installation & Troubleshooting / Re: arduino still runs when my PC is switched off on: January 07, 2013, 09:50:04 pm
Many times these powered ports have a little lightning bolt above them to signify that they are powered when off.
44  Using Arduino / Installation & Troubleshooting / Re: Arduino Uno Smd Edition R3 on: January 07, 2013, 09:48:58 pm
Red stuff is usually made by Sparkfun or Evil Mad Scientist (the Diavolino), not Arduino brand.

It may be an Arduino compatible board made by someone else.
45  Using Arduino / Installation & Troubleshooting / Re: Can't upload to UNO on: January 06, 2013, 11:36:52 am
I can't upload my programs to my uno board.  I was attempting to connect it to my iRobot Roomba and I think it short circuited the uno.  Any suggestions?

I think we might be able to use some details as to how it was wired up. Right now there's not enough information to make a good guess yet.
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