1.0.6

Author: dam74

DHT22.cpp

@@ -140,7 +140,7 @@ uint8_t DHT22::readSensor(){
 }
 
 String DHT22::debug(){
-  String d = "### DEDUG ###\nlook at datasheet for timing specs\n";
+  String d = "### BEGIN DEDUG ###\nlook at datasheet for timing specs\n";
   measureTimings();
 
   d +="t_80L\tt_80H\tt_50\tt_Bit0\tt_Bit1\n";
@@ -159,7 +159,7 @@ String DHT22::debug(){
   d += String(getHumidity(),1) +"\t";
   d += String(getTemperature(),1) +"\t";
   if (err != ERR_CRC) d+="TRUE"; else d+="FALSE";
-  d+="\n### DEDUG ###";
+  d+="\n### END DEDUG ###";
   return d;
 }
 

DHT22.h

@@ -33,10 +33,10 @@ class DHT22{
     uint8_t _timingBit0 = 27; //specs for AM2303
     uint8_t _timingBit1 = 70; //specs for AM2303
     bool _firstStart=true;
-    uint8_t _lastError;
+    error _lastError;
 
     const uint8_t T = 30;
-    const uint16_t cSamplingTime = 2100; // ms, dht22 sampling rate ~0.5Hz
+    const uint16_t cSamplingTime = 2100; // ms : dht22 sampling rate ~0.5Hz
 
   public:
     DHT22(uint8_t pinData){

examples/dht22test/dht22test.ino

@@ -10,15 +10,17 @@ void setup() {
 }
 
 void loop() {
-  //Serial.println(dht22.debug()); //optionnal
+  Serial.println(dht22.debug()); //optionnal
 
   float t = dht22.getTemperature();
   float h = dht22.getHumidity();
 
-  if (dht22.getLastError() != dht22.OK) 
+  if (dht22.getLastError() != dht22.OK) {
+    Serial.print("last error :");
     Serial.println(dht22.getLastError());
+  }
 
   Serial.print("h=");Serial.print(h,1);Serial.print("\t");
   Serial.print("t=");Serial.println(t,1);
-  delay(1000);
+  delay(2000); //Collecting period should be : >1.7 second
 }

library.properties

@@ -1,5 +1,5 @@
 name=DHT22
-version=1.0.5
+version=1.0.6
 author=dvarrel
 maintainer=dvarrel
 includes=DHT22.h