Features
· This module USES L298N as the main drive chip, with strong driving ability, low heat and strong anti-interference ability.
· Through this module can use the built-in 78 m05 drive power supply parts of their work, but in order to avoid the voltage regulator chip damage, when using the driving voltage is greater than 12V, please use the external power supply 5V logic.
· This module USES a large capacity filter capacitance, a continuation protection diode, can improve reliability.
Specifications
· Module name : dual H bridge motor drive module
· Work mode : H bridge drive (double road)
· Main control chip : L298N
· Packaging : electrostatic bag
· Logical voltage : 5V
· Drive voltage : 5v-35v
· Logical current : 0mA-36mA
· Driving current : 2A(MAX single bridge)
· Storage temperature : - 20 to + 135
· Maximum power : 25W
· Weight : 30 g
· Peripheral dimensions : 43*43*27mm
Notes
When the motor power (marked as VCC on the board, real acceptable input is 7V to 12V) is between 7V–12V:
- You can connect the motor power (VCC) directly.
- Press the button to power the board. The 78M05 chip will provide 5V logic power.
- The indicator light will turn on, and you don't need extra 5V logic power.
- You can also use the board's 5V output (but do not input voltage into the 5V pin!).
(This is the most common way to use it.)
If the motor power is higher than 12V but less than or equal to 24V:
- Although the chip supports up to 35V, in practice L298 chips work best below 24V.
- For example, if you're using an 18V motor:
- You must turn off the 5V output button.
- The indicator light should be off, and the board's 78M05 will not provide 5V.
- You must provide external 5V power to the logic side (use the 5V pin to input 5V power).
(This is the correct way to use it with higher voltage motors.)
The 5V power is only used to control signals.
- When the signal is active and the power is connected, the motor driver will work and the motor will run.
- If the signal is off or the power isn't connected properly, the motor won’t run even if everything else is powered.
The ENA and ENB pins (enable pins):
- They should be connected to high-level signals (usually to VCC).
- They are used to enable PWM speed control.
- You can adjust motor speed by sending PWM signals through these pins.
Pins IN1, IN2, IN3, and IN4:
- Connect them to high or low signals to control the motor’s direction and stop/start behavior.
- IN1/IN2 control one motor, IN3/IN4 control the other.
