Two Leds, Two Resistors

Currently reading the data from two photocell resistors and controlling the blink rate of two led’s with it. Right now they work one after the other, I’m still trying to figure out if it’s possible to make them work so that each resistor controls each led independently yet simultaneously. Brandt any ideas?

Code after the jump


int ledPin1 = 11; //led 1

int ledPin2 = 12;  //led 2

int resPin1 = 0;  //resistor 1

int resPin2 = 1;  //resistor 2

int var1 = 0;  //value 1

int var2 = 0;  //value 2
void setup (){

  //setup pins for leds as outs

  pinMode (ledPin1, OUTPUT);

  pinMode (ledPin2, OUTPUT);

  //startup serial to read values

  Serial.begin (9600);

}
void loop (){

  //led 1 on / off based on read

  var1 = analogRead (resPin1);

  digitalWrite (ledPin1, HIGH);

  delay (var1);

  digitalWrite (ledPin1, LOW);

  delay (var1);

  //print values led 1

  Serial.println ("var1 ");

  Serial.print (var1);

  Serial.println();

//led 2 on/off based on read var2 = analogRead (resPin2); digitalWrite (ledPin2, HIGH); delay (var2); digitalWrite (ledPin2, LOW); delay (var2); //print values led2 Serial.println ("var2 "); Serial.print (var2); Serial.println (); }

Tags: arduino

This entry was posted on Thursday, February 12th, 2009 at 7:28 pm and is filed under arduino. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

One Response to “Two Leds, Two Resistors”

coche says:

February 14, 2009 at 5:39 pm

My good friend Rocha, a scientist at Honda- after seeing my poor code, sent me this:

int LED1 = 11, LED2 = 12;
int RES1 = 0, RES2 = 1;

void setup ()
{
pinMode (LED1, OUTPUT);
pinMode (LED2, OUTPUT);
}

void loop ()
{
byte val1 = analogRead(RES1) >> 2;
byte val2 = analogRead(RES2) >> 2;

byte magic = (millis() & 0xFC0) >> 6;

digitalWrite(LED1, val1 < magic);
digitalWrite(LED2, val2 < magic);

delay(50);
}

I’ll give it a shot on Monday