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Wireless outlet control for Arduino
/**
* Wireless Outlet Control
*
* (c) 2016 Aaron Eiche, released under MIT License
* Use it, have fun with it.
*
* Built for my existing wireless outlets, written in Arduino
* Uses a common, inexpensive transmitter. 315Mhz or 433Mhz are typical.
* You'll need to determine codes for your own outlets.
*
* There's probably a more elegant method for doing this.
*
* Special thanks to Adam Honse, and his instructable that inspired this and
* gave me the approach for figuring it out. See this instructable:
* http://www.instructables.com/id/Cheap-Home-Automation-using-Wireless-Outlet-Module/
*/
// Set these according to the speed your outlets use. In microseconds.
// On, or 1
#define HIGH_TIME_LONG 1800
#define LOW_TIME_LONG 600
// Off, or 0
#define HIGH_TIME_SHORT 600
#define LOW_TIME_SHORT 1800
#define transmit_pin 4 //Pin we're sending the signal out on.
#define led_pin 13 //Microcontroller LED Pin, for testing.
void setup() {
// put your setup code here, to run once:
pinMode(transmit_pin, OUTPUT);
pinMode(led_pin, OUTPUT);
}
void loop() {
// This is a simple loop, turns lights on, turns lights off.
digitalWrite(led_pin,HIGH);
ch3on();
ch2on();
delay(2000);
digitalWrite(led_pin,LOW);
ch3off();
ch2off();
delay(2000);
}
//The common beginning 4 bits: 0110
void opening(){
bit_short();
bit_long();
bit_long();
bit_short();
}
//The common ending 4 bits: 0000
void closing(){
bit_short();
bit_short();
bit_short();
bit_short();
}
//We send the signal a few times to make sure it was received.
// Ch1 "on" Code: 1000 1000
void ch1on(){
for(int i = 0; i < 3; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_short();
bit_short();
bit_long();
bit_short();
bit_short();
bit_short();
closing();
}
}
// Ch1 "off" Code: 1000 0100
void ch1off(){
for(int i = 0; i < 3; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_short();
bit_short();
bit_short();
bit_long();
bit_short();
bit_short();
closing();
}
}
// Ch2 "on" Code: 1000 0010
void ch2on(){
for(int i = 0; i < 5; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_short();
bit_short();
bit_short();
bit_short();
bit_long();
bit_short();
closing();
}
}
// Ch2 "off" Code: 1000 0001
void ch2off(){
for(int i = 0; i < 5; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_short();
bit_short();
bit_short();
bit_short();
bit_short();
bit_long();
closing();
}
}
// Ch3 "on" Code: 1001 0000
void ch3on(){
for(int i = 0; i < 5; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_short();
bit_long();
bit_short();
bit_short();
bit_short();
bit_short();
closing();
}
}
// Ch3 "on" Code: 1010 0000
void ch3off(){
for(int i = 0; i < 5; i++){
delay(10);
opening();
bit_long();
bit_short();
bit_long();
bit_short();
bit_short();
bit_short();
bit_short();
bit_short();
closing();
}
}
//Toggle durations for "1"
void bit_long()
{
digitalWrite(transmit_pin,HIGH);
delayMicroseconds(HIGH_TIME_LONG);
digitalWrite(transmit_pin,LOW);
delayMicroseconds(LOW_TIME_LONG);
}
//Toggle durations for "0"
void bit_short()
{
digitalWrite(transmit_pin,HIGH);
delayMicroseconds(HIGH_TIME_SHORT);
digitalWrite(transmit_pin,LOW);
delayMicroseconds(LOW_TIME_SHORT);
}
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