Description: Adaptive for driving below 8.2V-45V 2.5A stepping motor,widely used in 3D printers and small CNC machines. Only have simple stepping and direction control interface. It is upgrade of A4988, 4-layer PCB for improved heat dissipation and decrease chip resistance. Six different stepping modes:whole,half,1/4,1/8,1/16,1/32. Adjustable potentiometer can adjust max current output so as to obtain higher stepping rate. Automatic current attenuation mode detection/selection. Overheat power off circuit,undervoltage locking,crossover current protection. Connection with short circuit protection and loading short circuit protection. Specification: Support 3D printer of Prusa Mendel,ultimaker,printbot,makerbot etc Size:15x20mm Max Driving Current:2.5A Subvision:1,1/2,1/4,1/8,1/16,1/32 PCB Layer Number:4 Manufacturing Process:SMT Package Includes: 1 PiecexDRV8825 Stepper Drivers 1 PiecexHeatsink
