Before use, please confirm that the DC brushless motor is hall. Generally, the motor with Hall has 8 wires (applicable), and the motor without hall has only 3 wires. The module can support 120 degrees or 60 degrees of Hall electrical Angle, the default is 120 degrees, There are Hall motor, 5 hall wiring, of which 2 are Hall power cables, 3 are Hall signal cables, according to the specifications or colors provided by the motor manufacturer to distinguish, wiring can not be mistaken. Note: Distinguish between motor wire, Hall signal wire, and Hall power cord. module is bare board, and it is not necessary to force heat dissipation to drive the motor with power 100W, as long as normal ventilation is ensured. If motor power exceeds 100W, it must be forced to dissipate heat, add heat sink or fan heat dissipation, and pay attention to the insulation problem of board when adding. Before finding the correct relationship, do not use high voltage and high current, otherwise the module may be damaged, the relationship is not generally the following phenomena: 1. After power-on, the motor can not start normally without reaction or jitter can not rotate normally when starting; 2. It is difficult to start with slight shaking, and sometimes it is necessary to turn it artificially; 3. The motor can turn in a certain direction, and the other direction can not turn and some have slight noise; If you are not clear about the definition of Hall line and phase line, please try the following methods: 1. Set the power supply to low voltage to limit the output of small current; 2. Connect five Hall cables. Do not change the Hall power cables after connecting them. 3. Assume that the color of the three-phase line of the motor is: red, black and white, and connect to the U, V and W of the PCB boardrespectively. According to the 6 different combinations in the following table, the smooth operation or efficiency is the best proof that the wiring is correct, and only 1 of the 6 combinations is correct. Operating voltage: 5V-40V Continuous operation: 15A Maximum current: 25A Max power: 200W Material: plastic+metal colour: black Package Contents: 1 x motor driver module Only the above package content, other products are not included. Note: Light reflection 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.