Reference
Other Supplementary Information
Control Method
| IN1 | IN2 | ENA/ ENB | Motor1/2 Behavior |
|---|---|---|---|
| 0 | 0 | x | Stop (brake) |
| 1 | 1 | x | Vacant |
| 1 | 0 | 1 | Forward 100% |
| 0 | 1 | 1 | Reverse 100% |
| 1 | 0 | PWM | Forward at PWM speed |
| 0 | 1 | PWM | Reverse at PWM speed |
In this table
- IN1 & IN2: the control signal input to change the motor behavior
- "0": TTL_Low
- "1": TTL_High
- "x": Any TTL, and it is default TTL_Low while no PWM signal.
- "ENA/ ENB": PWM speed setting
Note:
IN1 & IN2
To protect your motor, before switching the motor drive direction, first BRAKE the motor by setting IN1=0 & IN2=0. This is especially important when the PWM is set to 100% (full speed). The suggested braking time is >0.1sec, depending on your motor.
+5V
This signal is a reference that must be set to the same power supply that your microcontroller operates on. Connect this to the 3.3v or 5v power supply used by the controller.
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