Keyestudio 4DOF Manual page 181

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}
//***************************************
// the lower arm will stretch out
void lb()
{
pos3=pos3+1;
myservo3.write(pos3);
delay(5);
if(pos3>180)
{
pos3=180;
}
}
// the lower arm will draw back
void LF()
{
pos3=pos3-1;
myservo3.write(pos3);
delay(5);
if(pos3<35)
{
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