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1  Development / Other Hardware Development / Re: 4x AAA battery holder for Arduino based LED Poi on: July 12, 2012, 04:13:52 pm
Thank you but unfortunately these won't work. The housing for the Poi is 1" ID. I believe these square holders have a hypotenuse of about 1.35"
I've scoured DigiKey, Mouser, and Allied to no avail.
2  Development / Other Hardware Development / 4x AAA battery holder for Arduino based LED Poi on: July 12, 2012, 03:15:00 pm
I've designed a set of Full color POV LED Poi. The only part i'm having trouble finding is a 4x AAA cylindrical battery holder (like those found in flashlights). It needs to be less than 1" diameter. I have found one site that has these for sale but the minimum qty is 1000 and i'm getting no response.

I've found a few flashlights that use these battery holders. I have contacted the companies (led lenser/coast). They do not sell the holders individually.

If anyone has a clue where to find these I would appreciate it greatly. Thanks for your time!

3  Using Arduino / Programming Questions / Re: Compiler issues on: May 21, 2012, 12:42:58 pm
Now that I had not considered. Will do next! I'll also post the verbose output of the two if not identical.
Thanks so much for the help!
4  Using Arduino / Programming Questions / Re: Compiler issues on: May 21, 2012, 12:22:56 pm
Sorry about that. If I upload say... the BasicUse sketch included with the TLC5940 library (Knight Rider effect). Using 3 TLC and 16RGB LEDs.  The first 5 LEDs are off.The second 2/3s of the LEDs (TLC channels 17-47) light up mostly white (all 3 colors on) the hue varies slightly from LED to LED.  The code does seem to run underneath as i can see the knight rider effect going back and forth underneath the static mess. I have tried running this from 3.3v USB (the Sparkfun FT232RL adapter) as well as  5V/3.3 from my DC bench supply with no USB cable connected. same issue regardless, so long as im using this machine. A picture will do my cause a lot more justice.
5  Using Arduino / Programming Questions / Re: Compiler issues on: May 21, 2012, 11:42:20 am
There are no errors. It compiles and uploads fine regardless of computer. It just doesnt run correctly when compiled on this one. Also the sketch doesn't matter either. The blink sketch included with the IDE. if compiled on another machine it runs fine. If compiled on this one the LED on pin 13 acts erratic. I can post my code which drives 3x TLC5940s but its big and this issues is not specific to that code. Ill post the code and some images (compiled on this machine vs another) as soon as I can.

6  Using Arduino / Programming Questions / Compiler issues on: May 21, 2012, 11:14:20 am
I have a computer that is having issues compiling the sketch. It compiles and uploads fine but has issues running. The sketch doesn't seem to matter. I have this issue with all sketches. My code as well as example:blink.
My arduino 1.0 directory is in my dropbox folder (web sync folder).
On any computer except this one the code compiles, uploads, and runs fine. Even on this machine it uploads fine but runs erratically. I can upload the same sketch on a different computer and it runs fine. I thought it may be an issue with USB drivers though all USB drivers are installed properly. I compiled the sketch and pulled the .hex file from the temp directory and loaded this directly onto a ATmega328 with my STK600. I get the same result. It seems to be only sketches compiled on this machine. The arduino 1.0 directory on this machine is always identical to that on others because of the dropbox web sync folder so i'm using the same WinAVR program files as I do on another machine. Though ive tried using different instances of the arduino 1.0 IDE installed to different locations on the computer. Ive even gone so far as reinstalling windows to no avail. The comp im having trouble with is asus motherboard intel I5 8gb ram. windows 7 x64 ultimate. (illegal copy though so are my other computers and they compile fine). Hopefully someone will have an idea as what to try next.
7  Using Arduino / Microcontrollers / Re: How to turn Arduino into Transciever?? on: February 28, 2012, 12:24:18 pm
What type of Transceiver?
Would any of these be helpful...
8  Using Arduino / Microcontrollers / Re: Arduino Clone. Cannot upload on: February 28, 2012, 12:19:44 pm
I can load the .hex file with no bootloader via the STK600's TQFP32 ZIF socket. Or I can try mounting the chip in the STK600, installing the bootloader, then trying to upload via arduino IDE. It would basically be like this example where the breadboard is replaced with the STK600, and the chip is removed from the arduino i'm using to program my target chip. In any case i'll see if I can get the ASCII table sketch on the chip. Thanks!
9  Using Arduino / Microcontrollers / Re: Arduino Clone. Cannot upload on: February 28, 2012, 09:51:46 am
I've disconnected the 3v3OUT from VCC and tied it to the USB 5v supply in. Currently I have only the FT232RL, atmega328p and supporting circuitry soldered on (clock crystal and caps, pull up resistor on reset with .1uF cap in series going to DTR of the ft232rl. I have no resistors on the Tx/Rx lines. If I understand they are optional/for protection. No LEDs or boost converter. I'll try to get a more accurate schematic of what I actually have soldered. Still getting the same error though. avrdude cant get sync. I've tried selecting every board possible.
10  Using Arduino / Microcontrollers / Arduino Clone. Cannot upload on: February 25, 2012, 05:55:16 pm
It has a TQFP atmega328p with the optiboot bootloader, an FT232RL USB to serial converter. It shows up in arduino IDE but when uploading sketches I get the error avrdude: stk500_getsync(): not in sync: resp=0x00
I designed the PCB with eagle cad and tried to copy the arduino duemilanove schematic verbatim. I was hoping someone would take a look at my schematic and let me know if you see anything obvious i'm not catching.
11  Using Arduino / Microcontrollers / Re: STK600 with atmega328p on: February 22, 2012, 02:55:25 pm
I get an odd signature error when trying to burn the 328 bootloader on the TQFP chip, however it works fine with the DIPs. Optiboot loaded on both just fine. Now I've got to deal with the fact that I forgot to tie DTR# of my ft232rl to the m328 reset pin. Hopefully then I'll be able to upload sketches via arduino IDE. Thanks for the help!
12  Using Arduino / Microcontrollers / Re: STK600 with atmega328p on: February 21, 2012, 02:39:44 pm
I do have the ISP pins broken out and connected. I am able to use AVRStudio to read the chips signature. Will the optiboot bootloader work even though i'm using the FT232RL IC instead of atmega8U2 as a USB to serial converter. Also i'm not going to be burning the bootloader using the arduino IDE, i'd like to use AVRStudio, so I need to know exactly which hex file to point AVRStudio to.

If I go with the duemilanove bootloader it would be \Arduino\hardware\arduino\bootloaders\atmega\ATmegaBOOT_168_atmega328.hex with the fuses set as follows:
Low Fuse   0xFF
High Fuse   0xDA
Extended Fuse   0×05

or if I went with the optiboot bootloader it would be \Arduino\hardware\arduino\bootloaders\optiboot\optiboot_atmega328.hex with fuse settings:
Low Fuse   0xFF
High Fuse   0xDE
Extended Fuse   0×05

Is this correct?
13  Using Arduino / Microcontrollers / STK600 with atmega328p on: February 21, 2012, 09:46:59 am
I've recently purchased the STK600 and some 32TQFP atmega328p. I'm wondering which bootloader and what fuse settings I should use so that I can solder it in and have it ready to go. My custom PCB is identical to an Arduino Duemilanove with a USB port, to FT232 converter IC, connected to the atmega328p tx/rx lines. the PCB has the external 16Mhz crystal. I simply do not have an ISP header on my PCB which is why i'm wanting to prep the 328s with my STK600. I do have the correct 32TQFP ZIF socket and routing card. Thanks!
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