diff --git a/external_control/external_control.ino b/external_control/external_control.ino
index 21ed64d..b28c499 100644
--- a/external_control/external_control.ino
+++ b/external_control/external_control.ino
@@ -248,7 +248,7 @@ void getAndRunCommand(){
       "    lock the Arduino's state by running an infinite loop\n\r"
       "  L loop\n\r"
       "    usage: followed by a 5 digit uint16_t number,\n\r"
-      "      then one of the lowercas commands with arguments\n\r"
+      "      then one of the lowercase commands with arguments\n\r"
       "    repeat the command given as an argument\n\r"
       "  m set mode\n\r"
       "    usage: followed by two digit pin number and o or i\n\r"
@@ -273,7 +273,8 @@ void getAndRunCommand(){
       "    sets pullup resistor for input pins\n\r"
       "    \"digitalWrite\"\n\r"
       "  p write pwm\n\r"
-      "    usage: followed by two digit pin number and three digit value between 000 and 255\n\r"
+      "    usage: followed by two digit pin number and three digit value\n\r"
+      "      between 000 and 255\n\r"
       "    \"analogWrite\"\n\r"
       "  t toggle pin state\n\r"
       "    usage: followed by two digit pin number\n\r"