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. Below 15dB respectively, the noise is much lower than the traditional current control method 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 method: 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:Black+blue Material:plastic Package Contents: 5 x TMC2208 driver 5 x radiator Note: This product contains small parts 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.