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If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 150; void setup() { myservo.attach(9); myservo.write(angle); } void loop() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; switch (angle) { case 150: case 65: angle = 15; myservo.write(angle); break; case 15: angle = 35; myservo.write(angle); break; case 35: angle = 65; myservo.write(angle); break; } } } 

EDIT: Add variable assignment angle in conditional expression.

If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 150; void setup() { myservo.attach(9); myservo.write(angle); } void loop() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; switch (angle) { case 150: case 65: angle = 15; myservo.write(angle); break; case 15: angle = 35; myservo.write(angle); break; case 35: angle = 65; myservo.write(angle); break; } } } 

EDIT: Add variable assignment angle in conditional expression.

If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 150; void setup() { myservo.attach(9); myservo.write(angle); } void loop() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; switch (angle) { case 150: case 65: myservo.write(15); break; case 15: myservo.write(35); break; case 35: myservo.write(65); break; } } } 

If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 150; void setup() { myservo.attach(9); myservo.write(angle); } void loop() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis; switch (angle) { case 150: case 65: angle = 15; myservo.write(angle); break; case 15:  angle = 35;  myservo.write(angle); break; case 35: angle = 65;  myservo.write(angle); break; } } } 

EDIT: Add variable assignment angle in conditional expression.

If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 65;  void setup() {   myservo.attach(9);   myservo.write(angle);  }  void loop() {   unsigned long currentMillis = millis();   if (currentMillis - previousMillis >= interval) {   previousMillis = currentMillis; switch (angle) { case 65: myservo.write(15); break; case 15: myservo.write(35); break; case 35: myservo.write(65); break; }   } } 

If you want to change the servo every second, try to use a conditional expression in the timing structure. If you want to use more parallel structure with multiple intervals use different counters (example see: here).

Here is an example of the every second version:

#include <Servo.h> Servo myservo; unsigned long previousMillis = 0; const long interval = 1000; int angle = 150; void setup() { myservo.attach(9); myservo.write(angle); } void loop() { unsigned long currentMillis = millis();   if (currentMillis - previousMillis >= interval) { previousMillis = currentMillis;     switch (angle) {   case 150: case 65:   myservo.write(15);   break;   case 15:   myservo.write(35);   break;   case 35:   myservo.write(65);   break; } } }