diff --git a/DCCTimerSAMD.cpp b/DCCTimerSAMD.cpp
index 337b1bf..19684b2 100644
--- a/DCCTimerSAMD.cpp
+++ b/DCCTimerSAMD.cpp
@@ -56,7 +56,7 @@ void DCCTimer::begin(INTERRUPT_CALLBACK callback) {
 
   ADC->CTRLB.reg &= 0b1111100011111111;          // mask PRESCALER bits
   ADC->CTRLB.reg |= ADC_CTRLB_PRESCALER_DIV64 |  // divide Clock by 64
-                    ADC_CTRLB_RESSEL_12BIT;      // Result on 12 bits
+                    ADC_CTRLB_RESSEL_10BIT;      // Result on 10 bits default, 12 bits possible
 
   ADC->AVGCTRL.reg = ADC_AVGCTRL_SAMPLENUM_1 |   // take 1 sample at a time
                      ADC_AVGCTRL_ADJRES(0x00ul); // adjusting result by 0
diff --git a/MotorDrivers.h b/MotorDrivers.h
index accddf1..74aab48 100644
--- a/MotorDrivers.h
+++ b/MotorDrivers.h
@@ -50,8 +50,8 @@
 // PMA - senseFactor for 3.3v systems is 1.95 as calculated when using 10-bit A/D samples,
 // and for 12-bit samples it's more like 0.488, but we probably need to tweak both these
 #define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"),                                                 \
-                              new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 0.488, 2000, UNUSED_PIN), \
-                              new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 0.488, 2000, UNUSED_PIN)
+                              new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 1.95, 2000, UNUSED_PIN), \
+                              new MotorDriver(11, 13, UNUSED_PIN, 8, A1, 1.95, 2000, UNUSED_PIN)
 #else
 #define STANDARD_MOTOR_SHIELD F("STANDARD_MOTOR_SHIELD"),                                                 \
                               new MotorDriver(3, 12, UNUSED_PIN, 9, A0, 2.99, 2000, UNUSED_PIN), \