Diff: DHT22.cpp

Revision:

3:78e428144d16

Parent:

2:340957cc8fef

--- a/DHT22.cpp	Sat Jul 09 02:18:38 2011 +0000
+++ b/DHT22.cpp	Fri Nov 03 06:16:40 2017 +0000
@@ -31,9 +31,6 @@
 
 // This should be 40, but the sensor is adding an extra bit at the start
 #define DHT22_DATA_BIT_COUNT 41
-                           // debug
-Serial pc(USBTX, USBRX);   // Tx, Rx Using USB Virtual Serial Port
-                           // Read Data From /etc/ttyACM* (linux port)
 
 DHT22::DHT22(PinName Data) {
 
@@ -63,14 +60,12 @@
     }
     
     if (int(currentTime - _lastReadTime) < 2) {        
-        pc.printf("DHT22 Error Too Quick, wiat...");
         return DHT_ERROR_TOOQUICK;
     }   
     retryCount = 0;
     // Pin needs to start HIGH, wait unit it is HIGH with a timeout
     do {
         if (retryCount > 125) {
-            pc.printf("DHT22 Bus busy! ");
             return DHT_BUS_HUNG;
         }
         retryCount ++;
@@ -91,7 +86,6 @@
     retryCount = 0;
     do {
         if (retryCount > 40)  {// (Spec is 80 us, 40*2 == 80us
-            pc.printf("DHT22 is not present! ");
             return DHT_ERROR_NOT_PRESENT;
         }
         retryCount ++;
@@ -102,7 +96,6 @@
     retryCount = 0;
     do {
         if (retryCount > 40) {// (Spec is 80 us, 40 * 2 == 100us)
-            pc.printf("DHT22 error timeout for receiveing last ack signal! ");
             return DHT_ERROR_ACK_TOO_LONG;
         }
         retryCount++;
@@ -120,7 +113,6 @@
         retryCount = 0;
         do {                       // Getting start bit signal 
             if (retryCount > 25) { // spec is 50 u, 25*2 = 50 us
-                pc.printf("DHT22 sync timeout error! ");
                 return DHT_ERROR_SYNC_TIMEOUT;
             }
             retryCount ++;
@@ -130,7 +122,6 @@
         retryCount = 0;
         do {
             if (retryCount > 40) { // spec is 80us, 50*2 == 100us
-                pc.printf("DHT22 ERROR DATA TIMEOUT\n");
                 return DHT_ERROR_DATA_TIMEOUT;
             }
             retryCount++;
@@ -152,7 +143,6 @@
     // First 16 bit is Humidity
     for (i=0; i<16; i++) {
         if (bitTimes[i] > 14) {
-            pc.printf("%d: bit time is %d us. ", i, bitTimes[i]);
             currentHumidity |= ( 1 << (15-i));
         }
     }
@@ -188,13 +178,9 @@
     csPart3 = currentTemperature >> 8;
     csPart4 = currentTemperature & 0xFF;
     if (checkSum == ((csPart1 + csPart2 + csPart3 + csPart4) & 0xFF)) {
-        pc.printf("Calculate check sum is %d.",(csPart1 + csPart2 + csPart3 + csPart4) & 0xFF);
-        pc.printf("Reading check sum is %d.",checkSum);
         _lastReadTime = currentTime;
-        pc.printf("OK-->Temperature:%d, Humidity:%d\n", _lastTemperature, _lastHumidity);
         return DHT_ERROR_NONE;
     }
-    pc.printf("DHT22 Checksum error!");
     return DHT_ERROR_CHECKSUM;
 }