diff --git a/.travis.yml b/.travis.yml
index 225e1c66..e716679e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -74,4 +74,4 @@ install:
     - platformio lib install 62 416 417
 
 script:
-    - platformio ci --board=uno --board=teensy31 --board=due --board=esp12e --board=nodemcu --lib="."
+    - platformio ci --board=uno --board=due --board=teensy30 --board=teensy31 --board=teensy35 --board=teensy36 --board=teensylc --board=esp12e --board=nodemcu --lib="."
diff --git a/UsbCore.h b/UsbCore.h
index f9fc6641..3374b640 100644
--- a/UsbCore.h
+++ b/UsbCore.h
@@ -42,7 +42,7 @@ typedef MAX3421e<P3, P2> MAX3421E; // The Intel Galileo supports much faster rea
 #elif defined(ESP8266)
 typedef MAX3421e<P15, P0> MAX3421E; // ESP8266 boards
 #else
-typedef MAX3421e<P10, P9> MAX3421E; // Official Arduinos (UNO, Duemilanove, Mega, 2560, Leonardo, Due etc.), Intel Edison, Intel Galileo 2 or Teensy 2.0 and 3.0
+typedef MAX3421e<P10, P9> MAX3421E; // Official Arduinos (UNO, Duemilanove, Mega, 2560, Leonardo, Due etc.), Intel Edison, Intel Galileo 2 or Teensy 2.0 and 3.x
 #endif
 
 /* Common setup data constant combinations  */
diff --git a/XBOXONE.cpp b/XBOXONE.cpp
index 0698a6aa..d3f1fd77 100644
--- a/XBOXONE.cpp
+++ b/XBOXONE.cpp
@@ -260,9 +260,9 @@ void XBOXONE::readReport() {
         if(readBuf[0] == 0x07) {
                 // The XBOX button has a separate message
                 if(readBuf[4] == 1)
-                        ButtonState |= XBOX_BUTTONS[XBOX];
+                        ButtonState |= pgm_read_word(&XBOX_BUTTONS[XBOX]);
                 else
-                        ButtonState &= ~XBOX_BUTTONS[XBOX];
+                        ButtonState &= ~pgm_read_word(&XBOX_BUTTONS[XBOX]);
         }
         if(readBuf[0] != 0x20) { // Check if it's the correct report, otherwise return - the controller also sends different status reports
 #ifdef EXTRADEBUG
@@ -272,7 +272,7 @@ void XBOXONE::readReport() {
                 return;
         }
 
-        uint16_t xbox = ButtonState & XBOX_BUTTONS[XBOX]; // Since the XBOX button is separate, save it and add it back in
+        uint16_t xbox = ButtonState & pgm_read_word(&XBOX_BUTTONS[XBOX]); // Since the XBOX button is separate, save it and add it back in
         // xbox button from before, dpad, abxy, start/back, sync, stick click, shoulder buttons
         ButtonState = xbox | (((uint16_t)readBuf[5] & 0xF) << 8) | (readBuf[4] & 0xF0)  | (((uint16_t)readBuf[4] & 0x0C) << 10) | ((readBuf[4] & 0x01) << 3) | (((uint16_t)readBuf[5] & 0xC0) << 8) | ((readBuf[5] & 0x30) >> 4);
 
diff --git a/avrpins.h b/avrpins.h
index 76445e47..41b11abd 100644
--- a/avrpins.h
+++ b/avrpins.h
@@ -768,7 +768,7 @@ public:
 // pointers are 32 bits on ARM
 #define pgm_read_pointer(p) pgm_read_dword(p)
 
-#if defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__))
+#if defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__))
 
 #include "core_pins.h"
 #include "avr_emulation.h"
@@ -832,6 +832,38 @@ MAKE_PIN(P30, CORE_PIN30_PORTREG, CORE_PIN30_BIT, CORE_PIN30_CONFIG);
 MAKE_PIN(P31, CORE_PIN31_PORTREG, CORE_PIN31_BIT, CORE_PIN31_CONFIG);
 MAKE_PIN(P32, CORE_PIN32_PORTREG, CORE_PIN32_BIT, CORE_PIN32_CONFIG);
 MAKE_PIN(P33, CORE_PIN33_PORTREG, CORE_PIN33_BIT, CORE_PIN33_CONFIG);
+#if defined(__MK64FX512__) || defined(__MK66FX1M0__)
+MAKE_PIN(P34, CORE_PIN34_PORTREG, CORE_PIN34_BIT, CORE_PIN34_CONFIG);
+MAKE_PIN(P35, CORE_PIN35_PORTREG, CORE_PIN35_BIT, CORE_PIN35_CONFIG);
+MAKE_PIN(P36, CORE_PIN36_PORTREG, CORE_PIN36_BIT, CORE_PIN36_CONFIG);
+MAKE_PIN(P37, CORE_PIN37_PORTREG, CORE_PIN37_BIT, CORE_PIN37_CONFIG);
+MAKE_PIN(P38, CORE_PIN38_PORTREG, CORE_PIN38_BIT, CORE_PIN38_CONFIG);
+MAKE_PIN(P39, CORE_PIN39_PORTREG, CORE_PIN39_BIT, CORE_PIN39_CONFIG);
+MAKE_PIN(P40, CORE_PIN40_PORTREG, CORE_PIN40_BIT, CORE_PIN40_CONFIG);
+MAKE_PIN(P41, CORE_PIN41_PORTREG, CORE_PIN41_BIT, CORE_PIN41_CONFIG);
+MAKE_PIN(P42, CORE_PIN42_PORTREG, CORE_PIN42_BIT, CORE_PIN42_CONFIG);
+MAKE_PIN(P43, CORE_PIN43_PORTREG, CORE_PIN43_BIT, CORE_PIN43_CONFIG);
+MAKE_PIN(P44, CORE_PIN44_PORTREG, CORE_PIN44_BIT, CORE_PIN44_CONFIG);
+MAKE_PIN(P45, CORE_PIN45_PORTREG, CORE_PIN45_BIT, CORE_PIN45_CONFIG);
+MAKE_PIN(P46, CORE_PIN46_PORTREG, CORE_PIN46_BIT, CORE_PIN46_CONFIG);
+MAKE_PIN(P47, CORE_PIN47_PORTREG, CORE_PIN47_BIT, CORE_PIN47_CONFIG);
+MAKE_PIN(P48, CORE_PIN48_PORTREG, CORE_PIN48_BIT, CORE_PIN48_CONFIG);
+MAKE_PIN(P49, CORE_PIN49_PORTREG, CORE_PIN49_BIT, CORE_PIN49_CONFIG);
+MAKE_PIN(P50, CORE_PIN50_PORTREG, CORE_PIN50_BIT, CORE_PIN50_CONFIG);
+MAKE_PIN(P51, CORE_PIN51_PORTREG, CORE_PIN51_BIT, CORE_PIN51_CONFIG);
+MAKE_PIN(P52, CORE_PIN52_PORTREG, CORE_PIN52_BIT, CORE_PIN52_CONFIG);
+MAKE_PIN(P53, CORE_PIN53_PORTREG, CORE_PIN53_BIT, CORE_PIN53_CONFIG);
+MAKE_PIN(P54, CORE_PIN54_PORTREG, CORE_PIN54_BIT, CORE_PIN54_CONFIG);
+MAKE_PIN(P55, CORE_PIN55_PORTREG, CORE_PIN55_BIT, CORE_PIN55_CONFIG);
+MAKE_PIN(P56, CORE_PIN56_PORTREG, CORE_PIN56_BIT, CORE_PIN56_CONFIG);
+MAKE_PIN(P57, CORE_PIN57_PORTREG, CORE_PIN57_BIT, CORE_PIN57_CONFIG);
+MAKE_PIN(P58, CORE_PIN58_PORTREG, CORE_PIN58_BIT, CORE_PIN58_CONFIG);
+MAKE_PIN(P59, CORE_PIN59_PORTREG, CORE_PIN59_BIT, CORE_PIN59_CONFIG);
+MAKE_PIN(P60, CORE_PIN60_PORTREG, CORE_PIN60_BIT, CORE_PIN60_CONFIG);
+MAKE_PIN(P61, CORE_PIN61_PORTREG, CORE_PIN61_BIT, CORE_PIN61_CONFIG);
+MAKE_PIN(P62, CORE_PIN62_PORTREG, CORE_PIN62_BIT, CORE_PIN62_CONFIG);
+MAKE_PIN(P63, CORE_PIN63_PORTREG, CORE_PIN63_BIT, CORE_PIN63_CONFIG);
+#endif
 
 #undef MAKE_PIN
 
diff --git a/settings.h b/settings.h
index 068bceba..804725a4 100644
--- a/settings.h
+++ b/settings.h
@@ -71,8 +71,8 @@ e-mail   :  support@circuitsathome.com
 #define USE_SPI4TEENSY3 1
 #endif
 
-// disabled on the Teensy LC as it is incompatible for now
-#if defined(__MKL26Z64__)
+// Disabled on the Teensy LC, Teensy 3.5, and Teensy 3.6 as it is incompatible for now
+#if defined(__MKL26Z64__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)
 #undef USE_SPI4TEENSY3
 #define USE_SPI4TEENSY3 0
 #endif
@@ -129,7 +129,7 @@ e-mail   :  support@circuitsathome.com
 #define EXT_RAM 0
 #endif
 
-#if defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__))
+#if defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__) || defined(__MKL26Z64__))
 #define USING_SPI4TEENSY3 USE_SPI4TEENSY3
 #else
 #define USING_SPI4TEENSY3 0
diff --git a/usbhost.h b/usbhost.h
index 6eb8d663..85e0ceb9 100644
--- a/usbhost.h
+++ b/usbhost.h
@@ -103,7 +103,7 @@ typedef SPi< Pb1, Pb2, Pb3, Pb0 > spi;
 typedef SPi< Pb5, Pb3, Pb4, Pb2 > spi;
 #elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
 typedef SPi< Pb7, Pb5, Pb6, Pb4 > spi;
-#elif (defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__))) || defined(__ARDUINO_X86__) || defined(__MIPSEL__) || defined(STM32F4)
+#elif (defined(CORE_TEENSY) && (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__) || defined(__MKL26Z64__))) || defined(__ARDUINO_X86__) || defined(__MIPSEL__) || defined(STM32F4)
 typedef SPi< P13, P11, P12, P10 > spi;
 #elif defined(ARDUINO_SAM_DUE) && defined(__SAM3X8E__)
 typedef SPi< P76, P75, P74, P10 > spi;