diff --git a/Marlin/src/HAL/SAMD51/HAL.cpp b/Marlin/src/HAL/SAMD51/HAL.cpp
index 8ec5d5a86c4b..beace8126cbf 100644
--- a/Marlin/src/HAL/SAMD51/HAL.cpp
+++ b/Marlin/src/HAL/SAMD51/HAL.cpp
@@ -60,11 +60,14 @@
 #define GET_PROBE_ADC()           TERN(HAS_TEMP_ADC_PROBE,    PIN_TO_ADC(TEMP_PROBE_PIN),   -1)
 #define GET_COOLER_ADC()          TERN(HAS_TEMP_ADC_COOLER,   PIN_TO_ADC(TEMP_COOLER_PIN),  -1)
 #define GET_BOARD_ADC()           TERN(HAS_TEMP_ADC_BOARD,    PIN_TO_ADC(TEMP_BOARD_PIN),   -1)
+#define GET_SOC_ADC()             TERN(HAS_TEMP_ADC_SOC,      PIN_TO_ADC(TEMP_SOC_PIN),     -1)
 #define GET_FILAMENT_WIDTH_ADC()  TERN(FILAMENT_WIDTH_SENSOR, PIN_TO_ADC(FILWIDTH_PIN),     -1)
 #define GET_BUTTONS_ADC()         TERN(HAS_ADC_BUTTONS,       PIN_TO_ADC(ADC_KEYPAD_PIN),   -1)
 #define GET_JOY_ADC_X()           TERN(HAS_JOY_ADC_X,         PIN_TO_ADC(JOY_X_PIN),        -1)
 #define GET_JOY_ADC_Y()           TERN(HAS_JOY_ADC_Y,         PIN_TO_ADC(JOY_Y_PIN),        -1)
 #define GET_JOY_ADC_Z()           TERN(HAS_JOY_ADC_Z,         PIN_TO_ADC(JOY_Z_PIN),        -1)
+#define GET_POWERMON_ADC_CURRENT() TERN(POWER_MONITOR_CURRENT, PIN_TO_ADC(POWER_MONITOR_CURRENT_PIN), -1)
+#define GET_POWERMON_ADC_VOLTS()  TERN(POWER_MONITOR_VOLTAGE, PIN_TO_ADC(POWER_MONITOR_VOLTAGE_PIN), -1)
 
 #define IS_ADC_REQUIRED(n) ( \
      GET_TEMP_0_ADC() == n || GET_TEMP_1_ADC() == n || GET_TEMP_2_ADC() == n || GET_TEMP_3_ADC() == n \
@@ -73,10 +76,11 @@
   || GET_CHAMBER_ADC() == n \
   || GET_PROBE_ADC() == n \
   || GET_COOLER_ADC() == n \
-  || GET_BOARD_ADC() == n \
+  || GET_BOARD_ADC() == n || GET_SOC_ADC() == n \
   || GET_FILAMENT_WIDTH_ADC() == n \
   || GET_BUTTONS_ADC() == n \
   || GET_JOY_ADC_X() == n || GET_JOY_ADC_Y() == n || GET_JOY_ADC_Z() == n \
+  || GET_POWERMON_ADC_CURRENT() == n || GET_POWERMON_ADC_VOLTS() == n \
 )
 
 #if IS_ADC_REQUIRED(0)
@@ -136,6 +140,9 @@ enum ADCIndex {
   #if GET_BOARD_ADC() == 0
     TEMP_BOARD,
   #endif
+  #if GET_SOC_ADC() == 0
+    TEMP_SOC,
+  #endif
   #if GET_FILAMENT_WIDTH_ADC() == 0
     FILWIDTH,
   #endif
@@ -151,6 +158,15 @@ enum ADCIndex {
   #if GET_JOY_ADC_Z() == 0
     JOY_Z,
   #endif
+  #if GET_POWERMON_ADC_CURRENT() == 0
+    POWERMON_CURRENT,
+  #endif
+  #if GET_POWERMON_ADC_VOLTS() == 0
+    POWERMON_VOLTS,
+  #endif
+
+  // Use later indexes for ADC index 1
+
   #if GET_TEMP_0_ADC() == 1
     TEMP_0,
   #endif
@@ -190,6 +206,9 @@ enum ADCIndex {
   #if GET_BOARD_ADC() == 1
     TEMP_BOARD,
   #endif
+  #if GET_SOC_ADC() == 1
+    TEMP_SOC,
+  #endif
   #if GET_FILAMENT_WIDTH_ADC() == 1
     FILWIDTH,
   #endif
@@ -205,6 +224,13 @@ enum ADCIndex {
   #if GET_JOY_ADC_Z() == 1
     JOY_Z,
   #endif
+  #if GET_POWERMON_ADC_CURRENT() == 1
+    POWERMON_CURRENT,
+  #endif
+  #if GET_POWERMON_ADC_VOLTS() == 1
+    POWERMON_VOLTS,
+  #endif
+
   ADC_COUNT
 };
 
@@ -303,6 +329,9 @@ enum ADCIndex {
     #if GET_BOARD_ADC() == 0
       TEMP_BOARD_PIN,
     #endif
+    #if GET_SOC_ADC() == 0
+      TEMP_SOC_PIN,
+    #endif
     #if GET_FILAMENT_WIDTH_ADC() == 0
       FILWIDTH_PIN,
     #endif
@@ -318,7 +347,15 @@ enum ADCIndex {
     #if GET_JOY_ADC_Z() == 0
       JOY_Z_PIN,
     #endif
+    #if GET_POWERMON_ADC_CURRENT() == 0
+      POWER_MONITOR_CURRENT_PIN,
+    #endif
+    #if GET_POWERMON_ADC_VOLTS() == 0
+      POWER_MONITOR_VOLTS_PIN,
+    #endif
+
     // ADC1 pins
+
     #if GET_TEMP_0_ADC() == 1
       TEMP_0_PIN,
     #endif
@@ -358,6 +395,9 @@ enum ADCIndex {
     #if GET_BOARD_ADC() == 1
       TEMP_BOARD_PIN,
     #endif
+    #if GET_SOC_ADC() == 1
+      TEMP_SOC_PIN,
+    #endif
     #if GET_FILAMENT_WIDTH_ADC() == 1
       FILWIDTH_PIN,
     #endif
@@ -373,6 +413,12 @@ enum ADCIndex {
     #if GET_JOY_ADC_Z() == 1
       JOY_Z_PIN,
     #endif
+    #if GET_POWERMON_ADC_CURRENT() == 1
+      POWER_MONITOR_CURRENT_PIN,
+    #endif
+    #if GET_POWERMON_ADC_VOLTS() == 1
+      POWER_MONITOR_VOLTS_PIN,
+    #endif
   };
 
   static uint16_t adc_results[ADC_COUNT];
@@ -420,6 +466,9 @@ enum ADCIndex {
       #if GET_BOARD_ADC() == 0
         { PIN_TO_INPUTCTRL(TEMP_BOARD_PIN) },
       #endif
+      #if GET_SOC_ADC() == 0
+        { PIN_TO_INPUTCTRL(TEMP_SOC_PIN) },
+      #endif
       #if GET_FILAMENT_WIDTH_ADC() == 0
         { PIN_TO_INPUTCTRL(FILWIDTH_PIN) },
       #endif
@@ -435,6 +484,12 @@ enum ADCIndex {
       #if GET_JOY_ADC_Z() == 0
         { PIN_TO_INPUTCTRL(JOY_Z_PIN) },
       #endif
+      #if GET_POWERMON_ADC_CURRENT() == 0
+        { PIN_TO_INPUTCTRL(POWER_MONITOR_CURRENT_PIN) },
+      #endif
+      #if GET_POWERMON_ADC_VOLTS() == 0
+        { PIN_TO_INPUTCTRL(POWER_MONITOR_VOLTS_PIN) },
+      #endif
     };
 
     #define ADC0_AINCOUNT   COUNT(adc0_dma_regs_list)
@@ -483,6 +538,9 @@ enum ADCIndex {
       #if GET_BOARD_ADC() == 1
         { PIN_TO_INPUTCTRL(TEMP_BOARD_PIN) },
       #endif
+      #if GET_SOC_ADC() == 1
+        { PIN_TO_INPUTCTRL(TEMP_SOC_PIN) },
+      #endif
       #if GET_FILAMENT_WIDTH_ADC() == 1
         { PIN_TO_INPUTCTRL(FILWIDTH_PIN) },
       #endif
@@ -498,6 +556,12 @@ enum ADCIndex {
       #if GET_JOY_ADC_Z() == 1
         { PIN_TO_INPUTCTRL(JOY_Z_PIN) },
       #endif
+      #if GET_POWERMON_ADC_CURRENT() == 1
+        { PIN_TO_INPUTCTRL(POWER_MONITOR_CURRENT_PIN) },
+      #endif
+      #if GET_POWERMON_ADC_VOLTS() == 1
+        { PIN_TO_INPUTCTRL(POWER_MONITOR_VOLTS_PIN) },
+      #endif
     };
 
     #define ADC1_AINCOUNT   COUNT(adc1_dma_regs_list)