... 8º),1/2,1/4,1/8,1/16,1/32,1/64,1/128,1/2561 ... /5,1/10,1/25,1/50,1/125,1/2504.Protect form : Overheated protect ... connect protect5.Dimensions:118mm×76mm×33mm6.Weight:<300g.7.Working environment:Temperature-15~40°C Humidity<90%. ... DIR-:Stepping motor direction input, voltage level touched off,high towards, low reverse7,ENA+,ENA-: motor free . ... motor driver,1.3A-4.5A,high quality and reasonable price