-
Notifications
You must be signed in to change notification settings - Fork 22
/
clap_detector.ino
65 lines (55 loc) · 1.54 KB
/
clap_detector.ino
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
#include <JeeLib.h>
#include <util/parity.h>
int pin = 8;
unsigned long duration,lastheard;
unsigned long timeout = 30000000;
#define LEDpin 1
#define CLAPMIN 300
#define CLAPMAX 600
// Turn transmitter on or off, but also apply asymmetric correction and account
// for 25 us SPI overhead to end up with the proper on-the-air pulse widths.
// With thanks to JGJ Veken for his help in getting these values right.
static void ookPulse(int on, int off) {
rf12_onOff(1);
delayMicroseconds(on + 150);
rf12_onOff(0);
delayMicroseconds(off - 200);
}
static void OOKSend(unsigned long cmd) {
for (byte i = 0; i < 40; ++i) {
for (byte bit = 0; bit < 25; ++bit) {
int on = bitRead(cmd, bit) ? 1056 : 395;
ookPulse(on, 1313 - on);
}
delay(10); // approximate
}
}
void setup()
{
pinMode(pin, INPUT);
pinMode(LEDpin, OUTPUT);
digitalWrite(LEDpin,LOW);
pinMode(A5,OUTPUT); //Start RFM12b
digitalWrite(A5,LOW);
delay(100);
Serial.begin(9600);
Serial.println(F("\n[Clap controlled power sockets]"));
rf12_initialize(0, RF12_433MHZ);
}
void loop()
{
duration = pulseIn(pin, HIGH, timeout);
if(duration > 1) {
Serial.println((millis()-lastheard));
if((millis()-lastheard>CLAPMIN) && (millis()-lastheard<CLAPMAX)) {
digitalWrite(LEDpin,!(digitalRead(LEDpin)));
if(digitalRead(LEDpin))
OOKSend(0b0111010101010100010101000);
else
OOKSend(0b0001010101010100010101000);
}
lastheard=millis();
}
delay(10);
// Serial.println(duration);
}