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Remove serial.print from library and update example error handling. Resolves issue #11 and #13.

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This commit is contained in:
Tony DiCola 2014-06-02 13:03:27 -07:00
parent ffac2f15b7
commit ce05c3536c
2 changed files with 18 additions and 19 deletions
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2
DHT.cpp
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@ -46,7 +46,6 @@ float DHT::readTemperature(bool S) {
return f; return f;
} }
} }
Serial.print("Read fail");
return NAN; return NAN;
} }
@ -70,7 +69,6 @@ float DHT::readHumidity(void) {
return f; return f;
} }
} }
Serial.print("Read fail");
return NAN; return NAN;
} }

35
examples/DHTtester/DHTtester.ino
View File

@ -32,25 +32,26 @@ void loop() {
float t = dht.readTemperature(); float t = dht.readTemperature();
// Read temperature as Fahrenheit // Read temperature as Fahrenheit
float f = dht.readTemperature(true); float f = dht.readTemperature(true);
// Check if any reads failed and exit early (to try again).
if (isnan(h) || isnan(t) || isnan(f)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// Compute heat index // Compute heat index
// Must send in temp in Fahrenheit! // Must send in temp in Fahrenheit!
float hi = dht.computeHeatIndex(f, h); float hi = dht.computeHeatIndex(f, h);
// check if returns are valid, if they are NaN (not a number) then something went wrong! Serial.print("Humidity: ");
if (isnan(t) || isnan(h)) { Serial.print(h);
Serial.println("Failed to read from DHT"); Serial.print(" %\t");
} else { Serial.print("Temperature: ");
Serial.print("Humidity: "); Serial.print(t);
Serial.print(h); Serial.print(" *C ");
Serial.print(" %\t"); Serial.print(f);
Serial.print("Temperature: "); Serial.print(" *F\t");
Serial.print(t); Serial.print("Heat index: ");
Serial.print(" *C "); Serial.print(hi);
Serial.print(f); Serial.println(" *F");
Serial.print(" *F\t");
Serial.print("Heat index: ");
Serial.print(hi);
Serial.println(" *F");
}
} }