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This article mainly introduces how to use Raspberry PI+L298N, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Brief introduction

L298N is a double H-bridge motor driver chip, which can control the behavior of L298N through the high and low GPIO level of raspberry pie.

L298N:

Root@raspberrypi:~# gpio readall +-+-Model B2 pin of raspberry pie | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-+ -+-3.3v | | 1 | 2 | | 5v | 2 | 8 | SDA.1 | IN | 1 | 3 | | 4 | | 5V | 3 | 9 | SCL.1 | IN | 1 | 5 | | 6 | | 0v | 4 | 7 | GPIO. 7 | IN | 1 | 7 | 8 | 1 | ALT0 | TxD | 15 | 14 | 0v | | 9 | 10 | 1 | ALT0 | RxD | 16 | 15 | 17 | 0 | GPIO. 0 | IN | 0 | 11 | | 12 | 0 | IN | GPIO. 1 | 1 | 18 | | 27 | 2 | GPIO. 2 | IN | 0 | 13 | | 14 | | 0v | 22 | 3 | GPIO. 3 | IN | 0 | 15 | | 16 | 1 | IN | GPIO. 4 | 4 | 23 | 3.3v | | 17 | 18 | 0 | IN | GPIO. 5 | 5 | 24 | | 10 | 12 | MOSI | IN | 0 | 19 | | 20 | | 0v | 9 | 13 | MISO | IN | 0 | 21 | | 22 | 0 | IN | GPIO. 6 | 6 | 25 | | 11 | 14 | SCLK | IN | 0 | 23 | 24 | 1 | IN | CE0 | 10 | 8 | 0v | | 25 | 26 | 1 | IN | CE1 | 11 | 7 | +-- + -+ | 28 | 17 | GPIO.17 | IN | 0 | 51 | | 52 | 0 | IN | GPIO.18 | 18 | 29 | 30 | 19 | GPIO.19 | IN | 0 | 53 | | 54 | 0 | IN | GPIO.20 | 20 | 31 | +- +-- +-+ | BCM | wPi | Name | Mode | V | Physical | V | Mode | Name | wPi | BCM | +-- +-Model B2Musashi -+ L298N interface

12V:12V input positive pole

GND: power source, connect the negative pole of the power supply

5V:5V input, I don't understand the function of this at the moment.

ENA:A channel enable

IN1:A channel logic input 1

IN2:A channel logic input 2

OUT1: a channel output

OUT2: a channel output

ENB:B channel enable

IN3:B channel logic input 1

IN4:B channel logic input 2

OUT3: B channel output

OUT4: B channel output

Wiring

Connection of raspberry pie and L298N:

GPIO.0-IN1

GPIO.1-IN2

GPIO.4-ENA

L298N input 12v power supply OUT1,OUT2 connection motor

Code testing

The code is as follows:

Import RPi.GPIO as GPIOimport timeGPIO.setmode (GPIO.BOARD) INTA = 16INT1 = 11INT2 = 12GPIO.setup (INTA,GPIO.OUT) GPIO.setup (INT1,GPIO.OUT) GPIO.setup (INT2,GPIO.OUT) # enable signal GPIO.output (INTA,GPIO.HIGH) # Control rotation direction and braking, refer to the table GPIO.output (INT2,GPIO.HIGH) GPIO.output (INT1,GPIO.LOW) time.sleep (10) GPIO.cleanup () above. Thank you for reading this article carefully. I hope the article "how to use Raspberry PI+L298N" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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