Dynamic ramp generator: Trinamic's advanced S-shaped accelerating ramp to achieve super smooth motion. by Segmented oblique wave profile can realize continuous and smooth acceleration movement. Low working sound: The driving motor can control the sound of the motor when it works extremely quietly. 15dB respectively, the noise is much lower than the traditional current control Product Name: TMC2208 Intelligent Development Board Maximum output current: 1.4A Recommended working current: 1.2A at most Default factory current: 0.7A Microstep: 256 microstep breakdown Configuration: STEP/DIR QRU ART Load driving power range: 5~36V IC logic working voltage: 3.3V/5V Operation : Use a flat-blade screwdriver to turn the potentiometer clockwise-reduce the voltage VREF, thereby reducing current. Use a flat-blade screwdriver to turn the potentiometer counterclockwise-increase the voltage VREF, thereby increasing current. Tips: TMC2208 drive step value is calculated according to 16 subdivisions. chip Internally, it uses a differential algorithm to expand the 16 subdivision to 256 subdivision. Colour:White+blue Material:plastic Package Contents: 5 x TMC2208 driver 5 x radiator Note: This product contains and is not suitable for children aged 6 and under. Beware of swallowing Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.