unsigned long requestCo2(int timeout) {
Serial2.begin(9600);
byte readCO2[] = {
0xFE, 0X44, 0X00, 0X08, 0X02, 0X9F, 0X25
}; //Command packet to read CO2 (see app note)
byte response[] = {
0, 0, 0, 0, 0, 0, 0
}; //create an array to store CO2 response
float valMultiplier = 1;
int error = 0;
long start1 = millis();
long end1 = millis();
while (!Serial2.available()) { //keep sending request until we start to get a response
Serial2.write(readCO2, 7);
delay(50);
end1 = millis();
if (end1 - start1 > timeout) {
Serial_Print("\"error\":\"no co2 sensor found\"");
Serial_Print(",");
int error = 1;
break;
}
}
switch (error) {
case 0:
while (Serial2.available() < 7 ) //Wait to get a 7 byte response
{
timeout++;
if (timeout > 10) { //if it takes to long there was probably an error
#ifdef DEBUGSIMPLE
Serial_Print_Line("I timed out!");
#endif
while (Serial2.available()) //flush whatever we have
Serial2.read();
break; //exit and try again
}
delay(50);
}
for (int i = 0; i < 7; i++) {
response[i] = Serial2.read();
#ifdef DEBUGSIMPLE
Serial_Print_Line("I got it!");
#endif
}
break;
case 1:
break;
}
int high = response[3]; //high byte for value is 4th byte in packet in the packet
int low = response[4]; //low byte for value is 5th byte in the packet
unsigned long val = high * 256 + low; //Combine high byte and low byte with this formula to get value
Serial2.end();
return val * valMultiplier;
}
// Main
int main()
{
//Initialize the serial connection and pass it a desired baud rate.
uart_init(9600);
//Forever loop.
while(1){
//Call the Serial_Print function.
Serial_Print("ALABTU!");
}
}
// Main
int main()
{
//Setup received data LED.
DDRA |= (1 << PINA6);
PORTA ^= (1 << PINA6);
_delay_ms(250);
PORTA ^= (1 << PINA6);
//Initialize the serial connection and pass it a desired baud rate.
uart_init(9600);
//Forever loop.
while(1){
//Call the Serial_Print function.
Serial_Print(receiveData);
_delay_ms(400);
receiveData = 0;
}
}
void main(){
Setup_IOports();
atod_init();
_delay(200);
lcd_init();
Serial_Init();
Timer1_Init();
enableInterrupt();
clr_display();
printf("Body Temperature ");
position(2,1);
printf(" and Heart Rate ");
__delay_ms(5000);
clr_display();
while(1){
switch (Mode){
case 0 :
a2d_read();
__delay_ms(100);
check_pc();
break;
case 1 :
Tx_Control = 1;
Serial_Print( "*#DREQ=123" );
Serial_NewLine();
Tx_Control = 0;
break;
case 2 :
Tx_Control = 1;
Serial_Print( "*#123=" );
Serial_NewLine();
Tx_Control = 0;
break;
case 3 :
Tx_Control = 1;
Serial_Print( "*#123=" );
Tx_Control = 0;
position(1,1);
printf("Data request... ");
position(2,1);
printf(" ");
break;
case 4 :
Tx_Control = 1;
Serial_NewLine();
Tx_Control = 0;
case 5 :
clr_display();
break;
default:
break;
}
}
}
