Keyestudio 4DOF Manual page 122

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{
myservo3.write(pos3);
pos3++;
delay(5);
}
}
else
{
while(pos3>s3)
{
myservo3.write(pos3);
pos3--;
delay(5);
}
}
//*************************************************
// the explanation is the same as servo 1
if(pos4<s4)
{
while(pos4<s4)
{
myservo4.write(pos4);
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