I have just received order #53419 Arduino Duemilanove. Not long after uploading a program to it, I noticed the TX and RX leds were on steady, the board and FTDI chip were very hot. I unplugged the board and let it cool down, and then plugged it back in. The same lights were on and am now not able to upload to the atmega any more. I believe this is a problem with the FTDI chip, as the atmega seems fine because the L led flashes when the reset button is pressed, and power light is on when plugged in.
What should be done?
Arduino Duemilanove FTDI Problem
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Re: Arduino Duemilanove FTDI Problem
what program did you upload to it? did you connect anything up to the Arduino?
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Re: Arduino Duemilanove FTDI Problem
I uploaded the bargraph example from the menu. There were 4 leds and a pot from the kit, which were hooked up correctly.
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Re: Arduino Duemilanove FTDI Problem
can you point us to the schematic you were following? it sounds like the chip was somehow damaged - it worked, then something was connected to the Arduino, now it does not... but we're nor sure precisely how.
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Re: Arduino Duemilanove FTDI Problem
That is the code and how everything was plugged in.
After uploading and running it, I unplugged it from usb and removed all of the wires, then plugged it back in and went to another room to get something, came back the two leds were on and the board was incredibly hot from the chip.
It was sitting on a clean wood desk, there is no reason for something to have shorted out.
After uploading and running it, I unplugged it from usb and removed all of the wires, then plugged it back in and went to another room to get something, came back the two leds were on and the board was incredibly hot from the chip.
It was sitting on a clean wood desk, there is no reason for something to have shorted out.
Code: Select all
/*
LED bar graph
Turns on a series of LEDs based on the value of an analog sensor.
This is a simple way to make a bar graph display. Though this graph
uses 10 LEDs, you can use any number by changing the LED count
and the pins in the array.
This method can be used to control any series of digital outputs that
depends on an analog input.
The circuit:
* LEDs from pins 2 through 11 to ground
created 26 Jun 2009
by Tom Igoe
http://www.arduino.cc/en/Tutorial/BarGraph
*/
// these constants won't change:
const int analogPin = 0; // the pin that the potentiometer is attached to
const int ledCount = 10; // the number of LEDs in the bar graph
int ledPins[] = {
2, 3, 4, 5, 6, 7,8,9,10,11 }; // an array of pin numbers to which LEDs are attached
void setup() {
// loop over the pin array and set them all to output:
for (int thisLed = 0; thisLed < ledCount; thisLed++) {
pinMode(ledPins[thisLed], OUTPUT);
}
}
void loop() {
// read the potentiometer:
int sensorReading = analogRead(analogPin);
// map the result to a range from 0 to the number of LEDs:
int ledLevel = map(sensorReading, 0, 1023, 0, ledCount);
// loop over the LED array:
for (int thisLed = 0; thisLed < ledCount; thisLed++) {
// if the array element's index is less than ledLevel,
// turn the pin for this element on:
if (thisLed < ledLevel) {
digitalWrite(ledPins[thisLed], HIGH);
}
// turn off all pins higher than the ledLevel:
else {
digitalWrite(ledPins[thisLed], LOW);
}
}
}
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Re: Arduino Duemilanove FTDI Problem
please send a note to [email protected] - we're pretty sure you may have accidentally shorted / damaged it but we're going to see what we can do and likely offer an exchange.fragtastic69 wrote:That is the code and how everything was plugged in. After uploading and running it, I unplugged it from usb and removed all of the wires, then plugged it back in and went to another room to get something, came back the two leds were on and the board was incredibly hot from the chip. It was sitting on a clean wood desk, there is no reason for something to have shorted out.
cheers,
adafruit
Please be positive and constructive with your questions and comments.