diff --git a/examples/knob.py b/examples/knob.py
new file mode 100644
index 0000000..af88b12
--- /dev/null
+++ b/examples/knob.py
@@ -0,0 +1,23 @@
+#Example on controlling the servo with a pot
+#connect pot to pin #0
+#connect servo to pin #1
+
+
+import machine
+import pyb
+import time
+
+
+pot = machine.ADC(0)
+servo = pyb.Servo(1)
+
+
+#Map function similar to the one in arduino
+def map(value, range1_lb, range1_ub, range2_lb, range2_ub):
+  return ((value - range1_lb) * (range2_ub - range2_lb) / (range1_ub - range1_lb) + range2_lb )
+  
+while(True):
+  value = pot.read()
+  value = int(map(value, 0, 1024, -90, 90))
+  servo.angle(value, 1000)
+  time.sleep(1)