Keyestudio 4DOF Manual page 163

{
while(pos2>s2)
{
myservo2.write(pos2);
pos2--;
delay(5);
}
}
//*************************************************
// the explanation is the same as servo 1
if(pos3<s3)
{
while(pos3<s3)
{
myservo3.write(pos3);
pos3++;
delay(5);
}
}
else
{
while(pos3>s3)
{
myservo3.write(pos3);
pos3--;
delay(5);
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