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Motor Shield V2.0
Introduction
Note
This document works for Motor Shield V2.0/2.1/2.2.
The Motor Shield is a driver module for motors that allows you to use Arduino to
control the working speed and direction of the motor. Based on the Dual Full-Bridge
Drive Chip L298, it is able to drive two DC motors or a step motor. The Motor Shield
can either be powered directly by Arduino or by an external 6V~15V power supply via
the terminal input. This module can be used for the development of micro robots and
intelligent vehicles, etc
Features
•
Standard Arduino UNO Shield pin out
•
Based on L298 full bridge IC
•
Drive 2 DC Motor or 1 Stepper
•
External power input available
•
Led indicator
•
Heat sink for better performance
•
Arduino library
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Summary of Contents for Adafruit Motor Shield V2.0
- Page 1 Motor Shield V2.0 Introduction Note This document works for Motor Shield V2.0/2.1/2.2. The Motor Shield is a driver module for motors that allows you to use Arduino to control the working speed and direction of the motor. Based on the Dual Full-Bridge Drive Chip L298, it is able to drive two DC motors or a step motor.
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Page 2: Specifications
Specifications Spec Value Operating Voltage External Power 6-15V Output Current 2.0A Max @ Each Channel PWM Range 0-100% Output 2 Channels, 4 Ports Hardware Overview 1.Channel 1 indicator, include 3 leds • EB - channel 1 enable, high active • IN3 - status of OUT3 •... - Page 3 3.OUTPUT - There’re 2 channels, each channel has 2 output • Channel 0 - OUT1, OUT2 • Channel 1 - OUT3, OUT4 4.Channel 0 Sense 5.Channel 0 indicator, include 3 leds • EB - channel 0 enable, high active • IN1 - status of OUT1 •...
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Page 4: Getting Started
Arduino Pin Function Not Used OUT1 Enable of Channel0 Enable of Chennel1 OUT2 OUT3 OUT4 Note D8~D13 was used by Motor Shield. Please don’t use those pins to avoid conflict. Analog Pin Used Arduino Pin Function Not Used Not Used Not Used Not Used Not Used... - Page 5 Drive a DC Motor You can drive 2 DC motor with this shield. Here I will show you how to drive a DC motor. You need to do some preparing first: • Set SEN_A and SEN_B, connect the left 2 pins together with a jumper. •...
- Page 6 void loop() motor.speed(0, 100); // set motor0 to speed 100 delay(1000); motor.brake(0); // brake delay(1000); motor.speed(0, -100); // set motor0 to speed -100 delay(1000); motor.stop(0); // stop delay(1000); // END FILE Then you will find your motor move (1s), stop (1s), move back (1s), stop (1s), and loop.
- Page 7 You need to do some preparing first: - Set SEN_A and SEN_B, connect the left 2 pins together with a jumper. - Connect MB_EN together with a jumper, as we are no going to use an external power. Find the pin definitions of you stepper, and connect it to the OUTPUT of the shield. As below: Stepper Motor Shield...
- Page 8 digitalWrite(10, HIGH); stepper.step(steps); digitalWrite(9, LOW); digitalWrite(10, LOW); void setup() // set the speed of the motor to 30 RPMs pinMode(9, OUTPUT); pinMode(10, OUTPUT); digitalWrite(9, LOW); digitalWrite(10, LOW); stepper.setSpeed(30); void loop() step(1000); step(-1000); // END FILE If there’s nothing happen, please double check if you had connected the wire right. Library APIs begin Description...
- Page 9 speed Description Set speed, control by PWM. void move(int motor_id, int speed); • motor_id • 0 - Chanel 0 • 1 - Chanel 1 • speed: -100~100, the larger the faster, 0 for stop stop void stop(unsigned char motor_id); brake void brake(unsigned char motor_id);...
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