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implemented arduino ehealth platform and added sensors2osc ehealth handler

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This commit is contained in:
Stefan Kögl 2014-03-07 23:31:09 +01:00
commit 7f416fddc2
2 changed files with 95 additions and 2 deletions
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ehealth_sketch/ehealth_eno/ehealth_eno.ino Normal file
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void setup() {
Serial.begin(115200);
}
float getTemperature(void)
{
//Local variables
float Temperature; //Corporal Temperature
float Resistance; //Resistance of sensor.
float ganancia=5.0;
float Vcc=3.3;
float RefTension=3.0; // Voltage Reference of Wheatstone bridge.
float Ra=4700.0; //Wheatstone bridge resistance.
float Rc=4700.0; //Wheatstone bridge resistance.
float Rb=821.0; //Wheatstone bridge resistance.
int sensorValue = analogRead(A3);
float voltage2=((float)sensorValue*Vcc)/1023; // binary to voltage conversion
// Wheatstone bridge output voltage.
voltage2=voltage2/ganancia;
// Resistance sensor calculate
float aux=(voltage2/RefTension)+Rb/(Rb+Ra);
Resistance=Rc*aux/(1-aux);
if (Resistance >=1822.8) {
// if temperature between 25ºC and 29.9ºC. R(tª)=6638.20457*(0.95768)^t
Temperature=log(Resistance/6638.20457)/log(0.95768);
} else {
if (Resistance >=1477.1){
// if temperature between 30ºC and 34.9ºC. R(tª)=6403.49306*(0.95883)^t
Temperature=log(Resistance/6403.49306)/log(0.95883);
} else {
if (Resistance >=1204.8){
// if temperature between 35ºC and 39.9ºC. R(tª)=6118.01620*(0.96008)^t
Temperature=log(Resistance/6118.01620)/log(0.96008);
}
else{
if (Resistance >=988.1){
// if temperature between 40ºC and 44.9ºC. R(tª)=5859.06368*(0.96112)^t
Temperature=log(Resistance/5859.06368)/log(0.96112);
}
else {
if (Resistance >=811.7){
// if temperature between 45ºC and 50ºC. R(tª)=5575.94572*(0.96218)^t
Temperature=log(Resistance/5575.94572)/log(0.96218);
}
}
}
}
}
return Temperature;
}
void loop() {
int airFlow = analogRead(A1);
int emg = analogRead(0);
int temp = getTemperature();
Serial.print(airFlow);
Serial.print(";");
Serial.print(emg);
Serial.print(";");
Serial.println(temp);
delay(100);
}