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1  Using Arduino / Installation & Troubleshooting / Re: Arduino starts extremely slow, 20 seconds on: August 24, 2012, 05:21:05 pm
Try to turn off bluetooth, in my case Arduino runs very slow when I have bluetooth SPP com ports active
2  Using Arduino / Installation & Troubleshooting / Re: Uploading via bluetooth (serial port not listed) on: June 28, 2012, 12:43:49 pm
I don't know I'm typing commands old style, I'm using PuTTY even on my Windows mobile phone smiley-grin
3  Using Arduino / Installation & Troubleshooting / Re: Uploading via bluetooth (serial port not listed) on: June 27, 2012, 01:07:09 pm
I'm glad it worked smiley. To be honest for the purpose of changing baud rates and other AT commands I use PuTTY, because Arduino serial monitor doesn't work for me, so I reccomend you PuTTY, it's free, crossplatform and awesome smiley-grin
4  Using Arduino / Installation & Troubleshooting / Re: Uploading via bluetooth (serial port not listed) on: June 25, 2012, 01:10:28 pm
If you want to change baud rate on your bluetooth module you need to bring it to AT mode (there should be a switch or you need to pull some pin down check some datasheets) and then you need to connect it to the PC via FTDI and chanage it with AT commands.
5  Using Arduino / Installation & Troubleshooting / Re: Uploading via bluetooth (serial port not listed) on: June 21, 2012, 05:13:45 pm
What baud rate you have on your BT module ? because it has to be the same that the rate of which you're uploading with in this case 57600, and have you tried to reset the board manually just after you send that avrdude command ? Remember there is no autoreset feature when dealing with BT. I was programming my arduino via bluetooth on the windows 7, there were some issues with the timing of that reset. Haven't tried it on ubuntu yet, but I will look into it
6  Using Arduino / Microcontrollers / Re: ATmega328p with 8MHz internal clock on: April 04, 2012, 12:10:36 pm
I assume that Optiboot Bootloader requires 16mhz oscillator to run, what error did you get after trying to burn the Bootloader ?
7  Using Arduino / Microcontrollers / Re: ATmega328p with 8MHz internal clock on: April 04, 2012, 11:53:44 am
Have you bought that ATmega328 alone ? It's blank or it has some Bootloader in ? One way or another I believe that even if there is Bootloader on it, it will be one that requires 16 MHZ oscillator. So you need to change fuses on that chip and also burn there a corresponding Bootloader.
8  Using Arduino / Installation & Troubleshooting / Re: Cant upload to Nano on: April 02, 2012, 11:34:34 am
Are you running Arduino 1.0 or older one ?
Verbose output could show more
on older Arduino software just hold shift while uploading
and on Arduino 1.0 go to file -> preferences -> show verbose output
9  Using Arduino / Microcontrollers / Re: Creating a standalone Arduino on: March 25, 2012, 03:13:03 pm
Bootloader that you have on chip is for UNO right ? So fuses are set for 16 mhz oscillator you need to change these via AVR dude or via burning a bootloader for arduino that uses internal oscillator
10  Using Arduino / Microcontrollers / Re: Creating a standalone Arduino on: March 24, 2012, 06:24:11 am
Have you changed the fuses on atmega328 ?
11  Using Arduino / Installation & Troubleshooting / Re: USB Problem with Arduino Nano 3.0 With External Power Applied on: January 18, 2012, 04:00:43 pm
this is originally written about NANO on this site

Power:
The Arduino Nano can be powered via the Mini-B USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.

The FTDI FT232RL chip on the Nano is only powered if the board is being powered over USB. As a result, when running on external (non-USB) power, the 3.3V output (which is supplied by the FTDI chip) is not available and the RX and TX LEDs will flicker if digital pins 0 or 1 are high.
12  Using Arduino / Installation & Troubleshooting / Re: USB Problem with Arduino Nano 3.0 With External Power Applied on: January 17, 2012, 05:45:25 pm
Hi I have two NANOs myself and I'm dealing with same issue. I'm guessing that the problem is in 5V auto selector. In Other arduinos there's some sort of transistor to deal with that. But since NANO is so small thing used to select voltage between USB and Input is Schottky diode.
13  Using Arduino / Installation & Troubleshooting / Re: Controlling arduino with pc on: December 14, 2011, 03:50:28 pm
try this smiley
http://firmata.org/wiki/Main_Page
14  Using Arduino / Installation & Troubleshooting / Re: Power supply on: December 10, 2011, 07:45:28 am
If you have UNO you can use 10V adapter with barrel jack and you can access this voltage on VIN pin on Arduino
15  Using Arduino / Installation & Troubleshooting / Re: Power supply on: December 09, 2011, 04:04:05 pm
It depends on which Arduino are you using. If you're using UNO, Duemilanove, Nano etc. you can use up to 12Volts on VIN pin
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