Library Servo.h

writeMiliseconds() - doesnt to anything with values 0-400 to our servo HD-1370A as well as values over 2400. Documentation is silent.

write() - values 0-200 are angle, 200-99999 are position. Very unwise design guys :(

God knows why the interfaces doesnt have three functions

• setAngle()
• setAbsolutePos() or setStep()
• writeMagic() - yes, here you can do you magic values like 0-200,201+ and so on :)

Your servos – like mine HP-1370A – could have rotation range only +/- 60 degrees