You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
/*
|
|
* Power: Activate a relay to simulate pressing the power button of a PC
|
|
* A Raspberry Pi or clone must be attached to I2C.
|
|
* TODO: add IR support
|
|
*/
|
|
|
|
#include <IRremote.h>
|
|
#include <Wire.h>
|
|
|
|
const int RECV_PIN = 11;
|
|
const int ledPin = 13;
|
|
int incomingByte = 0;
|
|
|
|
IRrecv irrecv(RECV_PIN);
|
|
|
|
decode_results results;
|
|
|
|
void setup()
|
|
{
|
|
Serial.begin(9600);
|
|
// In case the interrupt driver crashes on setup, give a clue
|
|
// to the user what's going on.
|
|
Serial.println("Enabling IRin");
|
|
irrecv.enableIRIn(); // Start the receiver
|
|
Serial.println("Enabled IRin");
|
|
pinMode(12, OUTPUT);
|
|
digitalWrite(12, LOW);
|
|
|
|
pinMode(7, INPUT);
|
|
|
|
// i2c code
|
|
Wire.begin(0x8); // join i2c bus with address #8
|
|
Wire.onReceive(receiveEvent); // register event
|
|
pinMode(ledPin, OUTPUT);
|
|
digitalWrite(ledPin, LOW); // turn it off
|
|
}
|
|
|
|
void loop() {
|
|
if (irrecv.decode(&results)) {
|
|
Serial.println(results.value);
|
|
if(results.value == 16580863) {
|
|
pressTheButton();
|
|
}
|
|
irrecv.resume(); // Receive the next value
|
|
}
|
|
delay(100);
|
|
if(digitalRead(7)) { // In case the user presses the original power button
|
|
pressTheButton();
|
|
delay(1000);
|
|
}
|
|
if (Serial.available() > 0) {
|
|
// read the incoming byte:
|
|
incomingByte = Serial.read();
|
|
if(incomingByte == 120) {
|
|
pressTheButton();
|
|
}
|
|
}
|
|
//pressTheButton();
|
|
}
|
|
|
|
|
|
|
|
void receiveEvent(int howMany) {
|
|
Serial.println("event");
|
|
while (Wire.available()) { // loop through all but the last
|
|
int c = Wire.read(); // receive byte as a character
|
|
if(c == 120) {
|
|
pressTheButton();
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
void pressTheButton() {
|
|
if(millis() > 5000) { // Avoid any bootup false inputs
|
|
digitalWrite(12, HIGH); // toggle relay for power button for 0.5 sec
|
|
digitalWrite(ledPin, HIGH);
|
|
sei(); //Enables interrupts
|
|
delay(500); //Wait 1 second
|
|
//cli();
|
|
//delay(500);
|
|
digitalWrite(12, LOW);
|
|
digitalWrite(ledPin, LOW);
|
|
Serial.println("button pressed!");
|
|
}
|
|
}
|