diff --git a/feature/motheure-simple/source/loop.php b/feature/motheure-simple/source/loop.php
index acd6983..bfbd749 100644
--- a/feature/motheure-simple/source/loop.php
+++ b/feature/motheure-simple/source/loop.php
@@ -8,7 +8,7 @@
 
 	$FEATURE   = basename(dirname(__DIR__));
 
-	$MOTOR_PIN = 19;
+	$MOTOR_PIN = [19, 13];
 
 	$LOOP_FREQ = 100; // check frequency in ms
 	$THRESHOLD = 4;   // maximum number of reads to wait for motor to be active back
@@ -26,18 +26,20 @@
 		/* (1) Motor pin */
 		global $MOTOR_PIN;
 
-		/* [2] Try to read motor state
+		/* [2] Try to read motor state (for each pin)
 		=========================================================*/
-		/* (1) Get its state */
-		$STATE = syscall( SOURCE_DIR."/lib/gpio/in $MOTOR_PIN" );
+		foreach($MOTOR_PIN as $PIN){
+
+			/* (1) Get its state */
+			$STATE = syscall( SOURCE_DIR."/lib/gpio/in $MOTOR_PIN" );
+
+			/* (2) If at least one active return TRUE */
+			if( $STATE === true )
+				return true;
 
-		/* (3) If active, pass */
-		if( $STATE === true ){
-			return true;
 		}
 
-		/* (4) Return FALSE means motor inactive */
-		// slog('read: 0', 'motheure-simple:loop', 'motheure');
+		/* (3) Return FALSE means every motor is inactive */
 		return false;
 
 	}
@@ -53,10 +55,7 @@
 		/* (1) Log history file descriptor */
 		global $f_data;
 
-		/* (2) Motor pin */
-		global $MOTOR_PIN;
-
-		/* (3) Loop data */
+		/* (2) Loop data */
 		global $start_ts;
 		global $LOOP_FREQ;
 		global $THRESHOLD;