arduino to minicom problem

Forum 2005-2010 (read only) Hardware Troubleshooting
1

I just installed Ubuntu 7.04 on my laptop. I removed the brltty package and I can upload code to the arduino just fine. The problem is I can't get minicom to read data from the arduino.

The code on the arduino is:
#include <stdio.h>
#include <string.h>

void
setup ()
{
beginSerial (19200);
digitalWrite (13, HIGH); //turn on debugging LED
}

// MAIN CODE
void
loop ()
{
Serial.print("hello\n");
delay(100);
}

My minicom settings are:
pu port /dev/ttyUSB0
pu baudrate 19200

Before I installed Ubuntu, I ran SUSE 10 and this program would work fine. Now the TX light will not even blink. I can program the arduino just fine, so this has me stumped.

Any ideas what I might have wrong?

thanks
chad

2

Ok, now I am wondering if I may have fried the board. I am trying to run code to just turn on an led:
#include <stdio.h>
#include <string.h>

void
setup ()
{
digitalWrite (13, HIGH); //turn on debugging LED
}

// MAIN CODE
void
loop ()
{
digitalWrite (13, HIGH); //turn on debugging LED
}

I put an led on pin13/GND. When I press the reset button, the LED flashes 3 times. But then my code should turn the LED on, but after the 3 flashes, the LED never turns on.

So now I am thinking my serial communication problem is actually a problem with the board.

Am I correct that the above code should turn on the LED? Any other simple tests I can run to see if the board is working? It was working fine last week.

thanks
chad

3

hi

check to see if you have selected the appropriate microcontroller, either Atmega168 or Atmega8, under tools>microcontroller.

D

4

That was it! Thanks a million.