Example Code for Arduino-Blink LED

Hardware Preparation

• USB Serial Light Adapter(SKU: DFR0164) ×1
• Cheapduino (5PCS) (SKU: DFR0236) ×1
• Micro USB data cable ×1

Software Preparation

• Download Arduino IDE: Click to download Arduino IDE.

Wiring Diagram

When plugin the fpc programming cable to DFRobot FPC programmer and cheapDuino, please the blue side facing upward.

Other Preparation Work

• Choose the right com port of your programmer in the Arduino IDE first.
• Choose "Arduino NG or older /w ATmega8" in the "Boards" option.
• Then just upload your arduino sketch to the cheapDuino.

Sample Code

const int ledPin =  13;      // the number of the LED pin on the cheapDuino

// Variables will change:
int ledState = LOW;             // ledState used to set the LED
long previousMillis = 0;        // will store last time LED was updated

// the follow variables is a long because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long interval = 1000;           // interval at which to blink (milliseconds)

void setup() {
  // set the digital pin as output:
  pinMode(ledPin, OUTPUT);
}

void loop()
{
  // here is where you'd put code that needs to be running all the time.

  // check to see if it's time to blink the LED; that is, if the
  // difference between the current time and last time you blinked
  // the LED is bigger than the interval at which you want to
  // blink the LED.
  unsigned long currentMillis = millis();

  if(currentMillis - previousMillis > interval) {
    // save the last time you blinked the LED
    previousMillis = currentMillis;

    // if the LED is off turn it on and vice-versa:
    if (ledState == LOW)
      ledState = HIGH;
    else
      ledState = LOW;

    // set the LED with the ledState of the variable:
    digitalWrite(ledPin, ledState);
  }
}

Result

The LED connected to the D13 pin onboard blinks.