L298N motor drive module four-way motor drives intelligent c

Date:2024-09-07 Views:

a) About

The LC four channel L298N motor drive module integrates two L298N chips and can drive four DC motors simultaneously,
achieving control over forward and reverse rotation as well as motor speed.
The module is equipped with an LM2596S voltage reducing chip,
which can output 5V power to the control terminal when driving motors with a voltage of 7V or higher

b) View

①Front view

②Reverse image

c) Functional Features

1. Peak driving current IO: 2A
2. Maximum power consumption: 50W (when T=75 ℃, a single L298N 25W)
3. The power supply range of the logic terminal is VSS:+5V to+7V (can be powered from the board+5V)
4. Operating current range of logic part: 0-36mA
5. Control signal input voltage range: Low level:-0.3V≤Vin≤1.5V(control signal invalid), High level:2.3V≤Vin ≤VSS(control signal valid)
6. Onboard multi-channel 5V power output port

d) Introduction and Explanation

Board size: 59.1mm * 64mm /55g

Board Function Description:

1. Interface Description:
VCC: Positive pole of power supply
GND: Negative pole of power supply
OUT1, OUT2: DC motor 1 interface
OUT3, OUT4: DC motor 2 interface
OUT5, OUT6: DC motor 3 interfaces
OUT7, OUT8: DC motor 4 interfaces
IN1-IN8: Motor logic control terminal
IN1/IN2 controls motor 1
IN3/IN4 control motor 2
IN5/IN6 control motor 3
IN7/IN8 control motor 4
EN1: Enable end of motor 1
EN2: Enable end of motor 2
EN3: Enable end of motor 3
EN4: Enable end of motor 4
S1: Power switch
5V: 5V voltage output

e) L298N 4-channel motor drive board

Introduction to pins and parameters:

Pin Overview

Performance Parameters

Working mode	H-bridge driver (4 channels)	Main control chip	2 dual H-bridge L298N chips
Drive voltage VSS1 and VSS2 (default 5V)	5-30V	Power chip	LM2596-5.0 switching power supply, superior to LM7805
Logic voltage	5V	Logic current	0-36mA
Supply voltage VCC (recommended value)	7-12V	Supply voltage VCC (limit value)	6-30V
Single bridge maximum driving current	2A	maximum total power consumption	20W

f ) Instructions for use

(1) L298N, as the main driver chip, has the characteristics of strong driving ability, low heat generation, and strong anti-interference ability. At the same time, the LM2596 switching power IC installed also maximizes power efficiency, lower power consumption, and stronger power
(2) Connecting the servo: The board carries three servo interfaces, each containing three pins: S, 5V, and GND. If the servo under ultrasound in this experiment is plugged into the first circuit, the yellow, red, and brown wires of the SG90 servo correspond to S1, 5V, and GND, respectively. The PWM signal for controlling the servo is input from pin A1 on the side, and the remaining servo interfaces can be used to power external 5V devices
(3) Connect VCC and GND to 18650 battery during use; IN1-IN8 are connected to the high and low levels output by Arduino to control the forward, reverse, and stop of the motor< EN1-EN4 are enable/speed control pins, and the speed can be adjusted by using a microcontroller to output PWM with variable duty cycle. If speed control is not required, jumper caps can be used to connect them to 5V on the L298N module (at full speed operation)

The following is the control logic for IN1-IN8 when controlling DC motors:

DC motor	rotation mode	IN1	IN2	IN3	IN4	IN5	IN6	IN7	IN8
M1	Forward rotation	High	Low
M1	Reverse	Low	High
M1	Stop	Low	Low
M2	Forward Rotation			High	Low
M2	Reverse			Low	High
M2	Stop			Low	Low
M3	Forward Rotation					High	Low
M3	Reverse					Low	High
M3	Stop					Low	Low
M4	Forward Rotation							High	Low
M4	Reverse							Low	High
M4	Stop							Low	Low

Note: If the program and the wiring of IN1-IN8 are correct but the direction of a certain motor is reversed, such as motor M1, then swapping the two wires OUT1 and OUT2 can be done