diff --git a/src/SparkFun_SCD30_Arduino_Library.cpp b/src/SparkFun_SCD30_Arduino_Library.cpp
index 1284ae9..de738d6 100644
--- a/src/SparkFun_SCD30_Arduino_Library.cpp
+++ b/src/SparkFun_SCD30_Arduino_Library.cpp
@@ -33,7 +33,11 @@ SCD30::SCD30(void)
 }
 
 //Initialize the Serial port
+#ifdef USE_TEENSY3_I2C_LIB
+bool SCD30::begin(i2c_t3 &wirePort, bool autoCalibrate)
+#else
 bool SCD30::begin(TwoWire &wirePort, bool autoCalibrate)
+#endif
 {
   _i2cPort = &wirePort; //Grab which port the user wants us to use
 
diff --git a/src/SparkFun_SCD30_Arduino_Library.h b/src/SparkFun_SCD30_Arduino_Library.h
index 38b3b9f..68b530f 100644
--- a/src/SparkFun_SCD30_Arduino_Library.h
+++ b/src/SparkFun_SCD30_Arduino_Library.h
@@ -28,8 +28,17 @@
 #ifndef __SparkFun_SCD30_ARDUINO_LIBARARY_H__
 #define __SparkFun_SCD30_ARDUINO_LIBARARY_H__
 
+// Uncomment the next #define if using an Teensy >= 3 or Teensy LC and want to use the dedicated I2C-Library for it
+// Then you also have to include <i2c_t3.h> on your application instead of <Wire.h>
+
+// #define USE_TEENSY3_I2C_LIB
+
 #include "Arduino.h"
+#ifdef USE_TEENSY3_I2C_LIB
+#include <i2c_t3.h>
+#else
 #include <Wire.h>
+#endif
 
 //The default I2C address for the SCD30 is 0x61.
 #define SCD30_ADDRESS 0x61
@@ -52,8 +61,11 @@ class SCD30
 	SCD30(void);
   
 	bool begin(bool autoCalibrate) { return begin(Wire, autoCalibrate); }
+#ifdef USE_TEENSY3_I2C_LIB
+	bool begin(i2c_t3 &wirePort = Wire, bool autoCalibrate=true); //By default use Wire port
+#else
 	bool begin(TwoWire &wirePort = Wire, bool autoCalibrate=true); //By default use Wire port
-
+#endif
 	bool beginMeasuring(uint16_t pressureOffset);
 	bool beginMeasuring(void);
 
@@ -85,8 +97,11 @@ class SCD30
 
 private:
 	//Variables
+#ifdef USE_TEENSY3_I2C_LIB
+	i2c_t3 *_i2cPort; //The generic connection to user's chosen I2C hardware
+#else
 	TwoWire *_i2cPort; //The generic connection to user's chosen I2C hardware
-
+#endif
 	//Global main datums
 	float co2 = 0;
 	float temperature = 0;