Cleanup Motori

[sketchbook_andrea] / motors / servo / Knob_2 / Knob_2.ino

diff --git a/motors/servo/Knob_2/Knob_2.ino b/motors/servo/Knob_2/Knob_2.ino
index 33e3ad11d36a6cf9994c30dbd5a6bde94c477117..c50275fff7c15c885cbcb87060730857b77d4a04 100644 (file)
--- a/motors/servo/Knob_2/Knob_2.ino
+++ b/motors/servo/Knob_2/Knob_2.ino
@@ -15,11 +15,13 @@ Schema:
 - https://www.arduino.cc/en/uploads/Tutorial/knob_bb.png
 */
 
+// Schema: https://lab.piffa.net/schemi/potenziometro_bb.png
+
 #include <Servo.h> 
  
 Servo myservo;  // create servo object to control a servo 
  
-int potpin = 0;  // analog pin used to connect the potentiometer
+const int potpin = A0;  // analog pin used to connect the potentiometer
 int val;    // variable to read the value from the analog pin 
 
 void setup() 
@@ -30,7 +32,8 @@ void setup()
 void loop() 
 { 
   val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023) 
-  val = map(val, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180) 
+  constrain(val,0,1023);
+  val = map(val, 0, 1023, 10, 170);    // scale it to use it with the servo (value between 10 and 170) 
   myservo.write(val);                  // sets the servo position according to the scaled value 
   delay(15);                           // waits for the servo to get there 
 }