Mô đun kiểm tra động cơ bước chuyên dụng cho A4988 Drv8825 Xd

Giới thiệu Mô đun kiểm tra động cơ bước chuyên dụng cho A4988 Drv8825 Xd

Illustration of figure 1:
1. vcc: external power supply to board and step motor, according to the working voltage of step motor.
2, gnd: power supply.
-configuration port: when you don't jump cap, en foot is pulled to the ground by default, while other ports are pulled to 5v by default.You can configure the connection vd or gnd according to the cap jump.
4, vdd power indicator lamp, on-the-spot light indicates vdd 5v output.
-working indicator lamp, which often indicates that the single chip output pwm 50% of the gap pulse-to-foot single chip is connected to step port by default through r3 resistance.If you want to provide pwm pulses externally, remove r3 resistance and then connect to the external pwm pulse.
-motor speed control keys: k1: continuous slowness by frequency, k2: continuous faster by frequency, k3: slower by frequency, k4: faster by frequency.K 1 k 2 is equivalent to rotational speed modulation, k 3 k 4 is equivalent to rotational speed tuning.Restore the default frequency after power cuts.
-single-chip program update, if you want to write your own program to control the motor, through this update to mcu.However, technical support is not provided.
-stepper motor interface: stepper motor connection.

Figure 2. annotations
-stepper motor driver module vdd is powered by a 0r resistor connected to the 5v of the plate.
-stepper motor driver module vm power supply, connected to vcc power supply through 0 r resistance.

Figure 3. annotations
1, en foot pull resistance, default pull down energy, jump cap and vd module not working.
2, 3, 4, segment the drag resistance on the foot, defaultly pull up to vdd.Set the subdivision according to the different motor drive module.Some modules have only two broken feet. only two can be configured, and the other doesn't have to.
5. reset feet pull resistance, jump cap and gnd when the module does not work.Some modules don't have this foot.
6. keep the resistance on your feet and skip the gnd when the module doesn't work.Some modules don't have this foot. Note: some modules of sleep and reset feet are connected, only one foot is needed.
7. pull resistance on dir feet, positive reverse settings, jumpers not connected or connected with vd reversals, jumpers grounding positive turns.

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