trying the SimpleDHT

SimpleDHT/examples/DHT11ErrCount/DHT11ErrCount.ino

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+#include <SimpleDHT.h>
+
+// for DHT11, 
+//      VCC: 5V or 3V
+//      GND: GND
+//      DATA: 2
+int pinDHT11 = 2;
+SimpleDHT11 dht11(pinDHT11);
+
+void setup() {
+  Serial.begin(115200);
+}
+
+void loop() {
+  // start working...
+  Serial.println("=================================");
+  Serial.println("Sample DHT11 with error count");
+
+  int cnt = 0;
+  int err_cnt = 0;
+  for (;;) {
+    cnt++;
+
+    byte temperature = 0;
+    byte humidity = 0;
+    int err = SimpleDHTErrSuccess;
+    if ((err = dht11.read(&temperature, &humidity, NULL)) != SimpleDHTErrSuccess) {
+      Serial.print("Read DHT11 failed, err="); Serial.print(SimpleDHTErrCode(err));
+      Serial.print(","); Serial.print(SimpleDHTErrDuration(err));
+      err_cnt++;
+    } else {
+      Serial.print("DHT11, ");
+      Serial.print((int)temperature); Serial.print(" *C, ");
+      Serial.print((int)humidity); Serial.print(" H");
+    }
+    Serial.print(", total: "); Serial.print(cnt);
+    Serial.print(", err: "); Serial.print(err_cnt);
+    Serial.print(", success rate: "); Serial.print((cnt - err_cnt) * 100.0 / (float)cnt); Serial.println("%");
+
+    delay(1500);
+  }
+}