🐛 Use ADC_VREF for Filament Width ADC Vref (MarlinFirmware#23977)

manianac · web-flow · commit 72a9a02c17e5 · 2022-03-31T19:23:52.000-05:00
diff --git a/Marlin/src/feature/filwidth.h b/Marlin/src/feature/filwidth.h
@@ -67,7 +67,7 @@ class FilamentWidthSensor {
   }
 
   // Convert raw measurement to mm
-  static float raw_to_mm(const uint16_t v) { return v * 5.0f * RECIPROCAL(float(MAX_RAW_THERMISTOR_VALUE)); }
+  static float raw_to_mm(const uint16_t v) { return v * float(ADC_VREF) * RECIPROCAL(float(MAX_RAW_THERMISTOR_VALUE)); }
   static float raw_to_mm() { return raw_to_mm(raw); }
 
   // A scaled reading is ready

Original file line number	Diff line number	Diff line change
`@@ -67,7 +67,7 @@ class FilamentWidthSensor {`
`67`	`67`	`}`
`68`	`68`
`69`	`69`	`// Convert raw measurement to mm`
`70`		`- static float raw_to_mm(const uint16_t v) { return v * 5.0f * RECIPROCAL(float(MAX_RAW_THERMISTOR_VALUE)); }`
	`70`	`+ static float raw_to_mm(const uint16_t v) { return v * float(ADC_VREF) * RECIPROCAL(float(MAX_RAW_THERMISTOR_VALUE)); }`
`71`	`71`	`static float raw_to_mm() { return raw_to_mm(raw); }`
`72`	`72`
`73`	`73`	`// A scaled reading is ready`