TMC2100

Use Guide TMC2100 Drive

Drive current algorithm: i = Vref * 1.9 / 2.5, the default Vref about 0.65v, so the default current 0.5A, the maximum current 1A!
Vref measures the voltage at the middle of Gnd and the potentiometer.
Be sure not to connect the motor when measuring voltage, otherwise it is easy to burn the drive.
Measure the voltage should be connected to the power supply, do not just connect USB power supply.
When using the Ramps1.4 or MKS Gen, remove the three jumper caps under the socket
Note the direction, refer to the above figure.
Heat sink directly attached to the PCB, refer to the following figure.
Motor direction and 4988 and 8825 on the contrary, if you want to directly replace the 4988, please adjust the firmware or adjust the motor connection.
For further details, refer to the TMC2100 data sheet.