// Wire Slave Receiver
#include <Wire.h> //include Library
// define Led Pins
#define LED1 3 //Pin 3
#define LED2 4 //Pin 4
#define LED3 5 //Pin 5
int ledState = LOW; // ledState used to set the LED
unsigned long previousMillis = 0; // will store last time LED was updated
const long interval = 500; // interval at which to blink (milliseconds)
void setup()
{
Wire.begin(4); // join i2c bus with address #4
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
//set Pin modes
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
//intern pulldown
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
digitalWrite(LED3, LOW);
}
void loop()
{
unsigned long currentMillis = millis();
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany)
{
while (1 < Wire.available()) // loop through all but the last
{
char c = Wire.read(); // receive byte as a character
Serial.print(c, BIN); // print the character as Binary
}
int x = Wire.read(); // receive byte as an integer
Serial.println(x, BIN); // print the integer as Binary
if (x == 1) { //turn LED1 on
digitalWrite(LED2, LOW);
digitalWrite(LED3, LOW);
digitalWrite(LED1, HIGH);
Serial.println("LED1 on");
}
if (x == 2) { //blink LED1
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED1, ledState);
}
}
if (x == 3) { //turn LED2 on
digitalWrite(LED1, LOW);
digitalWrite(LED2, HIGH);
delay(100);
}
if (x == 4) { //blink LED2
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED2, ledState);
}
}
if (x == 5) { //turn LED3 on
digitalWrite(LED2, LOW);
digitalWrite(LED3, HIGH);
}
if (x == 6) { //blink LED3
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED3, ledState);
}
}
if (x == 7) { //turn LED1 nad 2 on
digitalWrite(LED3, LOW);
digitalWrite(LED1, HIGH);
digitalWrite(LED2, HIGH);
}
if (x == 8) { //Blink LED1 and 2
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
}
if (x == 9) { //turn LED2 and 3 on
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
digitalWrite(LED2, HIGH);
digitalWrite(LED3, HIGH);
}
}
Thanks for your response. I tried to put all the of statements into the loop, but it's still not working. :P I have no idea how to put it into the loop so it works.
// Wire Slave Receiver
#include <Wire.h> //include Library
// define Led Pins
#define LED1 3 //Pin 3
#define LED2 4 //Pin 4
#define LED3 5 //Pin 5
int ledState = LOW; // ledState used to set the LED
unsigned long previousMillis = 0; // will store last time LED was updated
const long interval = 500; // interval at which to blink (milliseconds)
void setup()
{
Wire.begin(4); // join i2c bus with address #4
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
//set Pin modes
pinMode(LED1, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
//intern pulldown
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
digitalWrite(LED3, LOW);
}
void loop()
{
if (x == 1) { //turn LED1 on
digitalWrite(LED2, LOW);
digitalWrite(LED3, LOW);
digitalWrite(LED1, HIGH);
Serial.println("LED1 on");
}
if (x == 2) { //blink LED1
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED1, ledState);
}
}
if (x == 3) { //turn LED2 on
digitalWrite(LED1, LOW);
digitalWrite(LED2, HIGH);
delay(100);
}
if (x == 4) { //blink LED2
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED2, ledState);
}
}
if (x == 5) { //turn LED3 on
digitalWrite(LED2, LOW);
digitalWrite(LED3, HIGH);
}
if (x == 6) { //blink LED3
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(LED3, ledState);
}
}
if (x == 7) { //turn LED1 nad 2 on
digitalWrite(LED3, LOW);
digitalWrite(LED1, HIGH);
digitalWrite(LED2, HIGH);
}
if (x == 8) { //Blink LED1 and 2
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
}
if (x == 9) { //turn LED2 and 3 on
digitalWrite(LED1, LOW);
digitalWrite(LED2, LOW);
digitalWrite(LED2, HIGH);
digitalWrite(LED3, HIGH);
}
unsigned long currentMillis = millis();
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany)
{
while (1 < Wire.available()) // loop through all but the last
{
char c = Wire.read(); // receive byte as a character
Serial.print(c, BIN); // print the character as Binary
}
int x = Wire.read(); // receive byte as an integer
Serial.println(x, BIN); // print the integer as Binary
}
