diff --git a/Firmware/Configuration.h b/Firmware/Configuration.h
index eba8eb67f..25511f1f3 100644
--- a/Firmware/Configuration.h
+++ b/Firmware/Configuration.h
@@ -458,8 +458,8 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 #define SDSUPPORT // Enable SD Card Support in Hardware Console
 //#define SDSLOW // Use slower SD transfer mode (not normally needed - uncomment if you're getting volume init error)
 #define SD_CHECK_AND_RETRY // Use CRC checks and retries on the SD communication
-#define ENCODER_PULSES_PER_STEP 2 // Increase if you have a high resolution encoder
-#define ENCODER_STEPS_PER_MENU_ITEM 2 // Set according to ENCODER_PULSES_PER_STEP or your liking
+#define ENCODER_PULSES_PER_STEP 4 // Increase if you have a high resolution encoder
+#define ENCODER_STEPS_PER_MENU_ITEM 1 // Set according to ENCODER_PULSES_PER_STEP or your liking
 //#define ULTIMAKERCONTROLLER //as available from the Ultimaker online store.
 //#define ULTIPANEL  //the UltiPanel as on Thingiverse
 //#define LCD_FEEDBACK_FREQUENCY_HZ 1000	// this is the tone frequency the buzzer plays when on UI feedback. ie Screen Click
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index f6bc30c39..f33bd33b4 100644
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -3885,11 +3885,18 @@ Sigma_Exit:
       #endif
 
         #ifdef SHOW_TEMP_ADC_VALUES
+          {float raw = 0.0;
+
           #if defined(TEMP_BED_PIN) && TEMP_BED_PIN > -1
             SERIAL_PROTOCOLPGM("    ADC B:");
             SERIAL_PROTOCOL_F(degBed(),1);
             SERIAL_PROTOCOLPGM("C->");
-            SERIAL_PROTOCOL_F(rawBedTemp()/OVERSAMPLENR,0);
+            raw = rawBedTemp();
+            SERIAL_PROTOCOL_F(raw/OVERSAMPLENR,5);
+            SERIAL_PROTOCOLPGM(" Rb->");
+            SERIAL_PROTOCOL_F(100 * (1 + (PtA * (raw/OVERSAMPLENR)) + (PtB * sq((raw/OVERSAMPLENR)))), 5);
+            SERIAL_PROTOCOLPGM(" Rxb->");
+            SERIAL_PROTOCOL_F(raw, 5);
           #endif
           for (int8_t cur_extruder = 0; cur_extruder < EXTRUDERS; ++cur_extruder) {
             SERIAL_PROTOCOLPGM("  T");
@@ -3897,8 +3904,17 @@ Sigma_Exit:
             SERIAL_PROTOCOLPGM(":");
             SERIAL_PROTOCOL_F(degHotend(cur_extruder),1);
             SERIAL_PROTOCOLPGM("C->");
-            SERIAL_PROTOCOL_F(rawHotendTemp(cur_extruder)/OVERSAMPLENR,0);
-          }
+            raw = rawHotendTemp(cur_extruder);
+            SERIAL_PROTOCOL_F(raw/OVERSAMPLENR,5);
+            SERIAL_PROTOCOLPGM(" Rt");
+            SERIAL_PROTOCOL(cur_extruder);
+            SERIAL_PROTOCOLPGM("->");
+            SERIAL_PROTOCOL_F(100 * (1 + (PtA * (raw/OVERSAMPLENR)) + (PtB * sq((raw/OVERSAMPLENR)))), 5);
+            SERIAL_PROTOCOLPGM(" Rx");
+            SERIAL_PROTOCOL(cur_extruder);
+            SERIAL_PROTOCOLPGM("->");
+            SERIAL_PROTOCOL_F(raw, 5);
+          }}
         #endif
 		SERIAL_PROTOCOLLN("");
       return;
diff --git a/Firmware/SdBaseFile.cpp b/Firmware/SdBaseFile.cpp
index dbcf77fbd..be04ab1a2 100644
--- a/Firmware/SdBaseFile.cpp
+++ b/Firmware/SdBaseFile.cpp
@@ -294,7 +294,7 @@ bool SdBaseFile::getFilename(char* name) {
   return true;
 }
 //------------------------------------------------------------------------------
-void SdBaseFile::getpos(fpos_t* pos) {
+void SdBaseFile::getpos(filepos_t* pos) {
   pos->position = curPosition_;
   pos->cluster = curCluster_;
 }
@@ -925,7 +925,7 @@ bool SdBaseFile::openRoot(SdVolume* vol) {
  * \return The byte if no error and not at eof else -1;
  */
 int SdBaseFile::peek() {
-  fpos_t pos;
+  filepos_t pos;
   getpos(&pos);
   int c = read();
   if (c >= 0) setpos(&pos);
@@ -1492,7 +1492,7 @@ bool SdBaseFile::seekSet(uint32_t pos) {
   return false;
 }
 //------------------------------------------------------------------------------
-void SdBaseFile::setpos(fpos_t* pos) {
+void SdBaseFile::setpos(filepos_t* pos) {
   curPosition_ = pos->position;
   curCluster_ = pos->cluster;
 }
diff --git a/Firmware/SdBaseFile.h b/Firmware/SdBaseFile.h
index dea299a64..923a391dd 100644
--- a/Firmware/SdBaseFile.h
+++ b/Firmware/SdBaseFile.h
@@ -31,16 +31,16 @@
 #include "SdVolume.h"
 //------------------------------------------------------------------------------
 /**
- * \struct fpos_t
+ * \struct filepos_t
  * \brief internal type for istream
  * do not use in user apps
  */
-struct fpos_t {
+struct filepos_t {
   /** stream position */
   uint32_t position;
   /** cluster for position */
   uint32_t cluster;
-  fpos_t() : position(0), cluster(0) {}
+  filepos_t() : position(0), cluster(0) {}
 };
 
 // use the gnu style oflag in open()
@@ -196,11 +196,11 @@ class SdBaseFile {
   /** get position for streams
    * \param[out] pos struct to receive position
    */
-  void getpos(fpos_t* pos);
+  void getpos(filepos_t* pos);
   /** set position for streams
    * \param[out] pos struct with value for new position
    */
-  void setpos(fpos_t* pos);
+  void setpos(filepos_t* pos);
   //----------------------------------------------------------------------------
   bool close();
   bool contiguousRange(uint32_t* bgnBlock, uint32_t* endBlock);
diff --git a/Firmware/thermistortables.h b/Firmware/thermistortables.h
index ac1dea736..faa7e5667 100644
--- a/Firmware/thermistortables.h
+++ b/Firmware/thermistortables.h
@@ -1033,7 +1033,9 @@ const short temptable_12[][2] PROGMEM = {
 
 #define PtA 3.9083E-3
 #define PtB -5.775E-7
+#define PtC -4.183E-12
 #define PtRt(T,R0) ((R0)*(1.0+(PtA)*(T)+(PtB)*(T)*(T)))
+#define PtRtNew(T,R0) ((R0)*(1.0+(PtA)*(T)+(PtB)*(T)*(T) + (T-100)*PtC*(T)*(T)*(T)))
 #define PtAdVal(T,R0,Rup) (short)(1024/(Rup/PtRt(T,R0)+1))
 #define PtLine(T,R0,Rup) { PtAdVal(T,R0,Rup)*OVERSAMPLENR, T },
 
@@ -1061,6 +1063,124 @@ const short temptable_147[][2] PROGMEM = {
   PtLine(300,100,4700)
 };
 #endif
+// E3D Pt100 with 4k7 MiniRambo pullup, no Amp on the MiniRambo v1.3a
+#if (THERMISTORHEATER_0 == 148) || (THERMISTORHEATER_1 == 148) || (THERMISTORHEATER_2 == 148) || (THERMISTORBED == 148)
+const short temptable_148[][2] PROGMEM = {
+// These values have been calculated and tested over many days.  See https://docs.google.com/spreadsheets/d/1MJXa6feEe0mGVCT2TrBwLxVOMoLDkJlvfQ4JXhAdV_E
+// Values that are missing from the 5C gap are missing due to resolution limits.
+{19.00000 * OVERSAMPLENR,  0},
+{19.25000 * OVERSAMPLENR,  5},
+{19.50000 * OVERSAMPLENR, 10},
+{19.87500 * OVERSAMPLENR, 15},
+{20.25000 * OVERSAMPLENR, 20},
+{21.00000 * OVERSAMPLENR, 25},
+{21.75000 * OVERSAMPLENR, 35},
+{22.00000 * OVERSAMPLENR, 40},
+{23.00000 * OVERSAMPLENR, 50},  // 55C is more commonly used.
+{23.75000 * OVERSAMPLENR, 60},
+{24.00000 * OVERSAMPLENR, 65},
+{24.06250 * OVERSAMPLENR, 70},
+{25.00000 * OVERSAMPLENR, 75},
+{25.50000 * OVERSAMPLENR, 85},
+{26.00000 * OVERSAMPLENR, 90},
+{26.93750 * OVERSAMPLENR,100},
+{27.00000 * OVERSAMPLENR,105},
+{27.37500 * OVERSAMPLENR,110},
+{28.00000 * OVERSAMPLENR,115},
+{29.00000 * OVERSAMPLENR,125},
+{29.25000 * OVERSAMPLENR,135},
+{30.00000 * OVERSAMPLENR,140},
+{35.50000 * OVERSAMPLENR,150},
+{31.00000 * OVERSAMPLENR,155},
+{32.00000 * OVERSAMPLENR,165},
+{32.18750 * OVERSAMPLENR,175},
+{33.00000 * OVERSAMPLENR,180},
+{33.62500 * OVERSAMPLENR,190},
+{34.00000 * OVERSAMPLENR,195},
+{35.00000 * OVERSAMPLENR,205},
+{35.50000 * OVERSAMPLENR,215},
+{36.00000 * OVERSAMPLENR,220},
+{36.75000 * OVERSAMPLENR,230},
+{37.00000 * OVERSAMPLENR,235},
+{37.75000 * OVERSAMPLENR,245},
+{38.00000 * OVERSAMPLENR,250},
+{38.12500 * OVERSAMPLENR,255},
+{39.00000 * OVERSAMPLENR,260},
+{40.00000 * OVERSAMPLENR,275},
+{40.25000 * OVERSAMPLENR,285},
+{41.00000 * OVERSAMPLENR,290},
+{41.25000 * OVERSAMPLENR,300},
+{42.00000 * OVERSAMPLENR,305},
+{43.00000 * OVERSAMPLENR,315},
+{43.25000 * OVERSAMPLENR,325},
+{44.00000 * OVERSAMPLENR,330},
+{44.18750 * OVERSAMPLENR,340},
+{45.00000 * OVERSAMPLENR,345},
+{45.25000 * OVERSAMPLENR,355},
+{46.00000 * OVERSAMPLENR,360},
+{46.62500 * OVERSAMPLENR,370},
+{47.00000 * OVERSAMPLENR,375},
+{47.25000 * OVERSAMPLENR,385},
+{48.00000 * OVERSAMPLENR,390},
+{48.75000 * OVERSAMPLENR,400},
+{49.00000 * OVERSAMPLENR,405},
+};
+#endif
+#if (THERMISTORHEATER_0 == 247) || (THERMISTORHEATER_1 == 247) || (THERMISTORHEATER_2 == 247) || (THERMISTORBED == 247) // Pt100 with 4k7 MiniRambo pullup & PT100 Amplifier
+const short temptable_247[][2] PROGMEM = {
+// Calculated from Bob-the-Kuhn's PT100 calculator listed in https://github.com/MarlinFirmware/Marlin/issues/5543
+// and the table provided by E3D at http://wiki.e3d-online.com/wiki/E3D_PT100_Amplifier_Documentation#Output_Characteristics.
+{  0 * OVERSAMPLENR,    0},
+{241 * OVERSAMPLENR,    1},
+{249 * OVERSAMPLENR,   10},
+{259 * OVERSAMPLENR,   20},
+{267 * OVERSAMPLENR,   30},
+{275 * OVERSAMPLENR,   40},
+{283 * OVERSAMPLENR,   50},
+{291 * OVERSAMPLENR,   60},
+{299 * OVERSAMPLENR,   70},
+{307 * OVERSAMPLENR,   80},
+{315 * OVERSAMPLENR,   90},
+{323 * OVERSAMPLENR,  100},
+{331 * OVERSAMPLENR,  110},
+{340 * OVERSAMPLENR,  120},
+{348 * OVERSAMPLENR,  130},
+{354 * OVERSAMPLENR,  140},
+{362 * OVERSAMPLENR,  150},
+{370 * OVERSAMPLENR,  160},
+{378 * OVERSAMPLENR,  170},
+{386 * OVERSAMPLENR,  180},
+{394 * OVERSAMPLENR,  190},
+{402 * OVERSAMPLENR,  200},
+{410 * OVERSAMPLENR,  210},
+{418 * OVERSAMPLENR,  220},
+{426 * OVERSAMPLENR,  230},
+{432 * OVERSAMPLENR,  240},
+{440 * OVERSAMPLENR,  250},
+{448 * OVERSAMPLENR,  260},
+{454 * OVERSAMPLENR,  270},
+{462 * OVERSAMPLENR,  280},
+{469 * OVERSAMPLENR,  290},
+{475 * OVERSAMPLENR,  300},
+{483 * OVERSAMPLENR,  310},
+{491 * OVERSAMPLENR,  320},
+{499 * OVERSAMPLENR,  330},
+{505 * OVERSAMPLENR,  340},
+{513 * OVERSAMPLENR,  350},
+{519 * OVERSAMPLENR,  360},
+{527 * OVERSAMPLENR,  370},
+{533 * OVERSAMPLENR,  380},
+{541 * OVERSAMPLENR,  390},
+{549 * OVERSAMPLENR,  400},
+{616 * OVERSAMPLENR,  500},
+{682 * OVERSAMPLENR,  600},
+{741 * OVERSAMPLENR,  700},
+{801 * OVERSAMPLENR,  800},
+{856 * OVERSAMPLENR,  900},
+{910 * OVERSAMPLENR, 1000},
+{960 * OVERSAMPLENR, 1100},
+};
+#endif
 #if (THERMISTORHEATER_0 == 1010) || (THERMISTORHEATER_1 == 1010) || (THERMISTORHEATER_2 == 1010) || (THERMISTORBED == 1010) // Pt1000 with 1k0 pullup
 const short temptable_1010[][2] PROGMEM = {
   PtLine(0,1000,1000)
diff --git a/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
index 3e89889aa..3464b94ad 100644
--- a/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
@@ -18,6 +18,12 @@ GENERAL SETTINGS
 // Electronics
 #define MOTHERBOARD BOARD_RAMBO_MINI_1_0
 
+// Uncomment the below for the E3D PT100 temperature sensor (with or without PT100 Amplifier)
+//#define E3D_PT100_EXTRUDER_WITH_AMP
+//#define E3D_PT100_EXTRUDER_NO_AMP
+//#define E3D_PT100_BED_WITH_AMP
+//#define E3D_PT100_BED_NO_AMP
+
 
 /*------------------------------------
 AXIS SETTINGS
@@ -73,15 +79,26 @@ EXTRUDER SETTINGS
 #define BED_MINTEMP 15
 
 // Maxtemps
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
+#define HEATER_0_MAXTEMP 410
+#else
 #define HEATER_0_MAXTEMP 305
+#endif
 #define HEATER_1_MAXTEMP 305
 #define HEATER_2_MAXTEMP 305
 #define BED_MAXTEMP 150
 
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
+// Define PID constants for extruder with PT100
+#define  DEFAULT_Kp 21.70
+#define  DEFAULT_Ki 1.60
+#define  DEFAULT_Kd 73.76
+#else
 // Define PID constants for extruder
 #define  DEFAULT_Kp 40.925
 #define  DEFAULT_Ki 4.875
 #define  DEFAULT_Kd 86.085
+#endif
 
 // Extrude mintemp
 #define EXTRUDE_MINTEMP 130
@@ -224,9 +241,16 @@ BED SETTINGS
 #ifdef PIDTEMPBED
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+#if defined(E3D_PT100_BED_WITH_AMP) || defined(E3D_PT100_BED_NO_AMP)
+// Define PID constants for extruder with PT100
+#define  DEFAULT_bedKp 21.70
+#define  DEFAULT_bedKi 1.60
+#define  DEFAULT_bedKd 73.76
+#else
 #define  DEFAULT_bedKp 126.13
 #define  DEFAULT_bedKi 4.30
 #define  DEFAULT_bedKd 924.76
+#endif
 
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from pidautotune
@@ -303,12 +327,26 @@ THERMISTORS SETTINGS
 // 1047 is Pt1000 with 4k7 pullup
 // 1010 is Pt1000 with 1k pullup (non standard)
 // 147 is Pt100 with 4k7 pullup
+// 148 is Pt100 with 4k7 pullup and no PT100 Amplifier (in case type 147 doesn't work)
+// 247 is Pt100 with 4k7 pullup and PT100 Amplifier
 // 110 is Pt100 with 1k pullup (non standard)
 
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP)
+#define TEMP_SENSOR_0 247
+#elif defined(E3D_PT100_EXTRUDER_NO_AMP)
+#define TEMP_SENSOR_0 148
+#else
 #define TEMP_SENSOR_0 5
+#endif
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
+#if defined(E3D_PT100_BED_WITH_AMP)
+#define TEMP_SENSOR_BED 247
+#elif defined(E3D_PT100_BED_NO_AMP)
+#define TEMP_SENSOR_BED 148
+#else
 #define TEMP_SENSOR_BED 1
+#endif
 
 #define STACK_GUARD_TEST_VALUE 0xA2A2
 
diff --git a/Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h
index a36f3c9a3..703e41005 100644
--- a/Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK2-RAMBo13a-E3Dv6full.h
@@ -18,6 +18,12 @@ GENERAL SETTINGS
 // Electronics
 #define MOTHERBOARD BOARD_RAMBO_MINI_1_3
 
+// Uncomment the below for the E3D PT100 temperature sensor (with or without PT100 Amplifier)
+//#define E3D_PT100_EXTRUDER_WITH_AMP
+//#define E3D_PT100_EXTRUDER_NO_AMP
+//#define E3D_PT100_BED_WITH_AMP
+//#define E3D_PT100_BED_NO_AMP
+
 
 /*------------------------------------
 AXIS SETTINGS
@@ -73,15 +79,26 @@ EXTRUDER SETTINGS
 #define BED_MINTEMP 15
 
 // Maxtemps
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
+#define HEATER_0_MAXTEMP 410
+#else
 #define HEATER_0_MAXTEMP 305
+#endif
 #define HEATER_1_MAXTEMP 305
 #define HEATER_2_MAXTEMP 305
 #define BED_MAXTEMP 150
 
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP) || defined(E3D_PT100_EXTRUDER_NO_AMP)
+// Define PID constants for extruder with PT100
+#define  DEFAULT_Kp 21.70
+#define  DEFAULT_Ki 1.60
+#define  DEFAULT_Kd 73.76
+#else
 // Define PID constants for extruder
 #define  DEFAULT_Kp 40.925
 #define  DEFAULT_Ki 4.875
 #define  DEFAULT_Kd 86.085
+#endif
 
 // Extrude mintemp
 #define EXTRUDE_MINTEMP 130
@@ -224,9 +241,16 @@ BED SETTINGS
 #ifdef PIDTEMPBED
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, aggressive factor of .15 (vs .1, 1, 10)
+#if defined(E3D_PT100_BED_WITH_AMP) || defined(E3D_PT100_BED_NO_AMP)
+// Define PID constants for extruder with PT100
+#define  DEFAULT_bedKp 21.70
+#define  DEFAULT_bedKi 1.60
+#define  DEFAULT_bedKd 73.76
+#else
 #define  DEFAULT_bedKp 126.13
 #define  DEFAULT_bedKi 4.30
 #define  DEFAULT_bedKd 924.76
+#endif
 
 //120v 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
 //from pidautotune
@@ -303,12 +327,26 @@ THERMISTORS SETTINGS
 // 1047 is Pt1000 with 4k7 pullup
 // 1010 is Pt1000 with 1k pullup (non standard)
 // 147 is Pt100 with 4k7 pullup
+// 148 is E3D Pt100 with 4k7 pullup and no PT100 Amplifier on a MiniRambo 1.3a
+// 247 is Pt100 with 4k7 pullup and PT100 Amplifier
 // 110 is Pt100 with 1k pullup (non standard)
 
+#if defined(E3D_PT100_EXTRUDER_WITH_AMP)
+#define TEMP_SENSOR_0 247
+#elif defined(E3D_PT100_EXTRUDER_NO_AMP)
+#define TEMP_SENSOR_0 148
+#else
 #define TEMP_SENSOR_0 5
+#endif
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
+#if defined(E3D_PT100_BED_WITH_AMP)
+#define TEMP_SENSOR_BED 247
+#elif defined(E3D_PT100_BED_NO_AMP)
+#define TEMP_SENSOR_BED 148
+#else
 #define TEMP_SENSOR_BED 1
+#endif
 
 #define STACK_GUARD_TEST_VALUE 0xA2A2