Bump to 1.4.3

Fix comment on DHT22 and DHT21 variables

DHT.h

@@ -41,11 +41,21 @@
 #endif
 
 /* Define types of sensors. */
-#define DHT11 11  /**< DHT TYPE 11 */
+static const uint8_t DHT11{11};  /**< DHT TYPE 11 */
-#define DHT12 12  /**< DHY TYPE 12 */
+static const uint8_t DHT12{12};  /**< DHY TYPE 12 */
-#define DHT22 22  /**< DHT TYPE 22 */
+static const uint8_t DHT21{21};  /**< DHT TYPE 21 */
-#define DHT21 21  /**< DHT TYPE 21 */
+static const uint8_t DHT22{22};  /**< DHT TYPE 22 */
-#define AM2301 21 /**< AM2301 */
+static const uint8_t AM2301{21}; /**< AM2301 */
+
+#if defined(TARGET_NAME) && (TARGET_NAME == ARDUINO_NANO33BLE)
+#ifndef microsecondsToClockCycles
+/*!
+ * As of 7 Sep 2020 the Arduino Nano 33 BLE boards do not have
+ * microsecondsToClockCycles defined.
+ */
+#define microsecondsToClockCycles(a) ((a) * (SystemCoreClock / 1000000L))
+#endif
+#endif
 
 /*!
  *  @brief  Class that stores state and functions for DHT

examples/DHTtester/DHTtester.ino

@@ -20,7 +20,8 @@
 // NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
 // to 3.3V instead of 5V!
 // Connect pin 2 of the sensor to whatever your DHTPIN is
-// Connect pin 4 (on the right) of the sensor to GROUND
+// Connect pin 3 (on the right) of the sensor to GROUND (if your sensor has 3 pins)
+// Connect pin 4 (on the right) of the sensor to GROUND and leave the pin 3 EMPTY (if your sensor has 4 pins)
 // Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor
 
 // Initialize DHT sensor.

library.properties

@@ -1,5 +1,5 @@
 name=DHT sensor library
-version=1.3.10
+version=1.4.3
 author=Adafruit
 maintainer=Adafruit <info@adafruit.com>
 sentence=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors