diff --git a/docs/book/SUMMARY.md b/docs/book/SUMMARY.md
index b990112..e0280ab 100644
--- a/docs/book/SUMMARY.md
+++ b/docs/book/SUMMARY.md
@@ -12,7 +12,7 @@
 * [Моторы]()
 * [Радиоуправление]()
 * [Гироскоп](gyro.md)
-* [Акселерометр]()s
+* [Акселерометр]()
 * [Оценка состояния]()
 * [PID-регулятор]()
 * [Режим ACRO]()
diff --git a/flix/rc.ino b/flix/rc.ino
index e570f5f..2d10420 100644
--- a/flix/rc.ino
+++ b/flix/rc.ino
@@ -32,14 +32,14 @@ void normalizeRC() {
 }
 
 void calibrateRC() {
-	Serial.println("Calibrate RC: move all sticks to maximum positions within 4 seconds");
+	Serial.println("Calibrate RC: move all sticks to maximum positions in 4 seconds");
 	Serial.println("··o     ··o\n···     ···\n···     ···");
 	delay(4000);
 	for (int i = 0; i < 30; i++) readRC(); // ensure the values are updated
 	for (int i = 0; i < RC_CHANNELS; i++) {
 		channelMax[i] = channels[i];
 	}
-	Serial.println("Calibrate RC: move all sticks to neutral positions within 4 seconds");
+	Serial.println("Calibrate RC: move all sticks to neutral positions in 4 seconds");
 	Serial.println("···     ···\n···     ·o·\n·o·     ···");
 	delay(4000);
 	for (int i = 0; i < 30; i++) readRC(); // ensure the values are updated
diff --git a/flix/util.ino b/flix/util.ino
index b5373d1..3dc9259 100644
--- a/flix/util.ino
+++ b/flix/util.ino
@@ -28,12 +28,11 @@ float wrapAngle(float angle) {
 
 template <typename T>
 void printArray(T arr[], int size) {
-	Serial.print("{");
 	for (uint8_t i = 0; i < size; i++) {
-		Serial.print(arr[i]);
-		if (i < size - 1) Serial.print(", ");
+		Serial.printf("%g", static_cast<float>(arr[i]));
+		if (i < size - 1) Serial.print(" ");
 	}
-	Serial.println("}");
+	Serial.println();
 }
 
 // Disable reset on low voltage