I have set up a breadboard arduino (ATmega 328 with Arduino Uno Optiboot) much like the picture below according to this tutorial:
http://arduino.cc/en/Main/StandaloneIn order to program, I wired up the FTDI Basic Breakout
https://www.sparkfun.com/products/9716 like this:
ftdi arduino
5v --------> 5v
GND --------> GND
TX --------> RX
RX --------> TX
DTR (RST) -----> Reset must connect through a .1uF ceramic cap
I uploaded this code and it works fine.
int led = 9;
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
Serial.println("test");
delay(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
For future use, I would like to use a power supply for the chip and inputs/outputs other than the USB power supplied by the FTDI breakout board, but I would like to use the FTDI breakout board connected to my computer for debugging. How can I connect the FTDI board without the conflicting power issues?
