Created
June 7, 2013 13:38
-
-
Save shapr/5729319 to your computer and use it in GitHub Desktop.
Arduino sketch to ask for how many seconds to delay, for my spouse-safe wrist alarm, first working version, don't expect beauty
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
int powerPin = 17; | |
int groundPin = 19; | |
int failcount = 0; | |
char buffer[18]; | |
void setup() { | |
Serial.begin(9600); | |
Serial.flush(); | |
pinMode(powerPin,OUTPUT); | |
pinMode(groundPin,OUTPUT); | |
}; | |
void loop() { | |
if (Serial.available() > 0) { | |
int index=0; | |
delay(100); // let the buffer fill up | |
int numChar = Serial.available(); | |
if (numChar>15) { | |
numChar=15; | |
} | |
while (numChar--) { | |
buffer[index++] = Serial.read(); | |
} | |
splitString(buffer); | |
} else { // no input, snooze for five minutes | |
failcount++; | |
delay(1000); // wait one second | |
if (failcount > 30) { // after thirty seconds looking for serial input once per second | |
// start the five minute delay | |
delay(1000 * 60 * 5); | |
while(1){ | |
buzz(); | |
} | |
} | |
} | |
} | |
void splitString(char* data) { | |
Serial.print("Data entered: "); | |
Serial.println(data); | |
unsigned long Ans = strtol(data, NULL, 10); | |
Ans = constrain(Ans,0,30000); | |
Serial.print("Delaying "); | |
Serial.print(Ans); | |
Serial.println(" seconds."); | |
Serial.print("going to delay milliseconds: "); | |
Ans = Ans * 1000; | |
Serial.println(Ans); | |
delay(Ans); | |
while(1){ | |
buzz(); | |
} | |
// Clear the text and serial buffers | |
for (int x=0; x<16; x++) { | |
buffer[x]='\0'; | |
} | |
Serial.flush(); | |
} | |
void buzz() { | |
int amount = 500; | |
delay(amount); | |
digitalWrite(powerPin,HIGH); | |
delay(amount); | |
digitalWrite(powerPin,LOW); | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment