how does this look. I have it to collect data from hallway traffic from two passive IR sensors. When some one walks by it writes a time stamp to sram. Im running the board on two 6v lantern batteries for a total of 12volts. It looks like in a 24 hour period that im getting some weird times tho. Please help!
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <avr/io.h>
#include <EEPROM.h>
#define INIT_TIMER_COUNT 6
#define RESET_TIMER2 TCNT2 = INIT_TIMER_COUNT
int infra_red_a = 2; // IR Sensor connected to digital pin 2
int infra_red_l = 3; // IR Sensor connected to digital pin 3
int int_counter = 0;
volatile int i = 0;
volatile int z = 0;
volatile int timer1=0;
volatile int timer2=0;
volatile int time_limit = ;//The time period between allowed writes to the board
volatile char time_h = 0;//hours,minutes,seconds
volatile char time_m = 0;
volatile char time_s = 0;
int ledPin = 13; //FOR TESTING DUH~
volatile char timeStamp[64][4];
char incomingByte = 0;
// Aruino runs at 16 Mhz, so we have 1000 Overflows per second...
// 1/ ((16000000 / 64) / 256) = 1 / 1000
//this is to do timestamps correctly
ISR(TIMER2_OVF_vect) { //everytime counter = 1000, 1 sec passed , run clock function
RESET_TIMER2;
int_counter += 1;
if (int_counter == 1000) {
//second+=1;
time_s+=1;
int_counter = 0;
clock();
}
};
void setup(){ // run once, when the sketch starts
pinMode(infra_red_a, INPUT); // sets the digital pin as input 2
pinMode(infra_red_l, INPUT); // sets the digital pin as input 3
attachInterrupt(0,arrival,RISING); //interrupts when first sensor goes off
attachInterrupt(1,leaving,FALLING); //interrupts when second sensor turns off
pinMode(ledPin, OUTPUT);//MORE TESTING
Serial.begin(9600);//Sets Baud Rate For Serial Comm.
Serial.flush();
// for(int i=0;i<800;i++)
// timeStamp[i]=0;
//Timer Settings, for the Timer Control Register etc. , thank you internets
//Timer2 Settings: Timer Prescaler /64,
TCCR2B |= (1<<CS22);
TCCR2B &= ~((1<<CS21) | (1<<CS20));
// Use normal mode
TCCR2A &= ~((1<<WGM21) | (1<<WGM20));
// Use internal clock - external clock not used in Arduino
ASSR |= (0<<AS2);
//Timer2 Overflow Interrupt Enable
TIMSK2 |= (1<<TOIE2) | (0<<OCIE2A);
RESET_TIMER2;
//sei();
//starttime = millis();
}
void loop(){ // run over and over again
//dont know if this will actually do anything.... as its all interrupt driven
delay(1000);
digitalWrite(ledPin, LOW);
if (Serial.available() > 0) {
// read the incoming byte:
incomingByte = Serial.read();
if(incomingByte = 'a'){
sss();}//grab the data and output it to the serial monitor
else if(incomingByte = 'b'){
Serial.flush();}//Clears the serial data
}
}
void sss(){
//this is going to be fun!
//read flash memory
//send all data points to the serial monitor
//POINTS ARE LOST AFTER MONITOR IS CLOSED, DO NOT CLOSE IF U DONT HAVE DATA
//timeStamp[0][0]=87;
int f=0;
for(int k=0;k<z;k++){
for(int j=0;j<4;j++){
f=timeStamp[k][j];
Serial.println(f,DEC);
}
}
}
void arrival(){
//EEPROM will be tooo small
/* This is where the code goes that will
* Store a timestamp when the 1st sensor triggers
* Example Stamp
* Sensor - Hour - Minute - Second
* 1 10 5 32
* 110532
*/
if(timer1 == 0){
char arrival = 1;
digitalWrite(ledPin, HIGH); // sets the LED on
EEPROM.write(i,arrival);
EEPROM.write(i+1,time_h);
EEPROM.write(i+2,time_m);
EEPROM.write(i+3,time_s);
i = i+4;
//timeStamp[z][0]= {arrival,time_h,time_m,time_s};
timeStamp[z][0]=arrival;
timeStamp[z][1]=time_h;
timeStamp[z][2]=time_m;
timeStamp[z][3]=time_s;
z++;
timer1 = 1;
}
}
/*
prog_int16_t - a signed int (2 bytes) -32,767 to 32,768
*/
void leaving(){
/* This is where the code goes that will
* Store a timestamp when the 2nd sensor triggers
* Example Stamp
* Sensor - Hour - Minute - Second
* 2 10 5 42
* 210532
*/
if(timer2 == 0 ){
char leave = 2;
digitalWrite(ledPin, HIGH); // sets the LED on
EEPROM.write(i,leave);
EEPROM.write(i+1,time_h);
EEPROM.write(i+2,time_m);
EEPROM.write(i+3,time_s);
i = i+4;
timeStamp[z][0]=leave;
timeStamp[z][1]=time_h;
timeStamp[z][2]=time_m;
timeStamp[z][3]=time_s;
z++;
timer2 = 1;
}
}
void clock(){
int time3 =0;
time_s++;
if(time_s > 59){
time_s = 0;
time_m++;
time3++;
if(time_m > 59){
time_m = 0;
time_h++;
if(time_h > 23){
time_h = 0;
}
}
}
//code to renable writes
if( (time3 >= time_limit) && (timer1==1)){
timer1=0;
time3=0;
}
if((time3 >= time_limit) && (timer2==1)){
timer2=0;
time3=0;
}
};
//EEPROM.write(i, arrival);
//EEPROM.write(i, time_h);
//EEPROM.write(i, time_m);
//EEPROM.write(i, time_s);
//i = sizeof(arrival) + sizeof(time_h) + sizeof(time_m) + sizeof(time_s);
//PROGMEM prog_uint16_t charSet[] = { 65000, 32796, 16843, 10, 11234};
//PROGMEM prog_int16_t timeStamp[z] = { arrival , time_h , time_m, time_s};
