Arduino Sensor Shield V5 0 Manual Page

void loop() myServo.write(0); // 0 degrees delay(1000); myServo.write(90); // 90 degrees delay(1000);

The Arduino's onboard voltage regulator is limited in current (typically 500mA-800mA). If the shield is powered solely via the Arduino's USB connection, driving multiple servos may cause the voltage to drop, leading to a system reset. arduino sensor shield v5 0 manual