User Manual

ManualsBrandsCUQI ManualsComputers & AccessoriesDIY Robot Car Beginners Kit, Motor Drive Controller Board Stepper Motor Control Module with DC Motor, Car Wheel, Jumper Wires, Compatible with Smart Car MEGA R3 Mega2560

Table Of Contents

User Manual of L298N drive controller for

DIY smart car kit

Content:

1. Composition of DIY smart car.

............................

1.1.Our package include:

.....................................

1.2.What functional units can be added to the

car?

..........................................................................

2. How to install and connect wires?

......................

2.1.Installation method

.........................................

2.2.Wiring method

.................................................

3. Working principle of L298N drive module

.........

4. How to modify the code to realize different

functional commands?

..............................................

Summary of content (9 pages)

PAGE 1
User Manual of L298N drive controller for DIY smart car kit Content: 1. Composition of DIY smart car............................. 2 1.1.Our package include:.....................................2 1.2.What functional units can be added to the car?.......................................................................... 3 2. How to install and connect wires?......................5 2.1.Installation method.........................................5 2.2.Wiring method...............................................
PAGE 2
1. Composition of DIY smart car. 1.1.Our package include: L298N drive controller module DC motor Smart car wheel 20cm jumper wire male to male 20cm jumper wire male to female 20cm jumper wire female to female x2 x4 x4 x20 x20 x20 Please note: Only the parts mentioned above are included in our kit. The motherboard and other accessories is not included.
PAGE 3
1.2.What functional units can be added to the car? (1) Power supply As the power source of the car,it is essential.The sample smart car is powered by 2pcs 3.7V 14500 type rechargeable lithium batteries.You need to bring your own battery and battery slot. The batteries supplies power to the L298N drive module through the jumper wires. And the power supply will be used to drive DC motors by L298N to rotate the wheels.
PAGE 4
itself(such as”tracking mode”, “radom mode”, “normal mode”). If you want to add more functional units to the smart car, you also need to prepare an extender for UNO R3. (3) Ultrasonic module Connect to the UNO or extender as a sensor that realizes obstacle avoidance function in “normal mode”.It can sense the obstacles ahead, through the emission and return of ultrasound. (4) Tracing module Connect to the extender as a sensor for executing “tracing mode” instruction.
PAGE 5
(5) A Chassis Obviously, you need to prepare a chassis for the smart car to carry all the controllers, motors and functional units. 2. How to install and connect wires? 2.1.
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1. Front wheel motor forwards, rear wheel motor backwards. 2. There is a raised dots on each motors, and all of them should be placed toward the same direction(on the left when facing the car).You can test the direction of rotation of the motors first before installing them.
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tracing module 2 Interchange S wire with 1 tracing module 1 Interchange S wire with 2 If you are interested, you can learn the working principle of L298N driver module, ultrasonic module and tracking module by yourself, give full play to your creativity, modify the connection method and code, and let the car run according to your own ideas. 3. Working principle of L298N drive module L298N can accept standard TTL logic level signal VSS, and VSS can be connected to 4.5-7V voltage.
PAGE 8
3.1 Internal principle diagram 3.2 Logic function table The logic diagrams of IN3 and IN4 are the same as the above table. It can be seen from the above table that when ENA is at low level, the input level has an effect on motor control. When ENA is at high level, the input level is one high and one low, and the motor is forward or reverse. Both are low-level or both are high-level, motor to stop.
PAGE 9
4. How to modify the code to realize different functional commands? Note: The code compiler is in the tutorial link: https://bit.ly/3vAtQOA To modify the numbers in the red box to the numbers corresponding to the different modes below: Modify to the number "1" execute "NOMALMODE". Modify to the number "2" execute "TRACINGMODE". Modify to the number "3" execute "RADOMMODE". Unleash your creativity. more functions expandation looks forward to the smarter you to explore.