diff --git a/hc4_fancontrol.sh b/hc4_fancontrol.sh
old mode 100644
new mode 100755
index 56c7261..bbc201e
--- a/hc4_fancontrol.sh
+++ b/hc4_fancontrol.sh
@@ -1,9 +1,28 @@
 #!/bin/bash
 
+#
+# Odroid HC4 fan control script
+#
+
+# Information (don't touch unless you're me)
+AUTHOR="david@socialnerds.org"
+VERSION="0.2.0"
+LICENSE="GPLv3"
+
+# Configuration
 THRESHOLD=42000
+DISTANCE=2000
 INTERVAL=30
+STEPS=(120 160 210 255)
 FAN="/sys/class/hwmon/hwmon2/pwm1"
 
+function get_temp() {
+  local TEMP=($(cat /sys/devices/virtual/thermal/thermal_zone*/temp))
+  for I in ${TEMP[@]}; do
+    echo "temp: $I"
+  done
+}
+
 # set fan mode to manual
 echo "disabled" | tee /sys/class/thermal/thermal_zone{0,1}/mode > /dev/null