Whadda WPSH207 User manual

USER MANUAL
EN
L293D motor drive expansion shield for Arduino®
WPSH207
whadda.com

2
Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its
lifecycle could harm the environment. Do not dispose of the unit (or batteries) as unsorted
municipal waste; it should be taken to a specialized company for recycling. This device
should be returned to your distributor or to a local recycling service. Respect the local
environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for choosing Whadda! Please read the manual thoroughly before bringing this
device into service. If the device was damaged in transit, do not install or use it and contact
your dealer.
Safety Instructions
Read and understand this manual and all safety signs before using this appliance.
For indoor use only.
•This device can be used by children aged from 8 years and above, and persons with
reduced physical, sensory or mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning the use of the device in a
safe way and understand the hazards involved. Children shall not play with the device.
Cleaning and user maintenance shall not be made by children without supervision.
General Guidelines
•Refer to the Velleman®Service and Quality Warranty on the last pages of this manual.
•All modifications of the device are forbidden for safety reasons. Damage caused by
user modifications to the device is not covered by the warranty.
•Only use the device for its intended purpose. Using the device in an unauthorized way
will void the warranty.
•Damage caused by disregard of certain guidelines in this manual is not covered by the
warranty and the dealer will not accept responsibility for any ensuing defects or
problems.
•Nor Velleman Group nv nor its dealers can be held responsible for any damage
(extraordinary, incidental or indirect) –of any nature (financial, physical…) arising from
the possession, use or failure of this product.
•Keep this manual for future reference.

3
What is Arduino®
Arduino®is an open-source prototyping platform based on easy-to-use hardware and
software. Arduino®boards are able to read inputs –light-on sensor, a finger on a button or a
Twitter message –and turn it into an output –activating of a motor, turning on an LED,
publishing something online. You can tell your board what to do by sending a set of
instructions to the microcontroller on the board. To do so, you use the Arduino
programming language (based on Wiring) and the Arduino®software IDE (based on
Processing). Additional shields/modules/components are required for reading a twitter
message or publishing online. Surf to www.arduino.cc for more information.
Product Overview
This motor shield contains two motor drivers and a 74HC595 shift register and extends the
pins on the Arduino® from 3 to 8, which allows controlling the direction for the motor
drivers.
Specifications
•two L293D motor driver chips
•four H-Bridges
•0.6 A per bridge (1.2 A peak)
•thermal shutdown protection
•internal fly kickback protection diodes
•up to 4 bi-directional DC motors
•up to 2 stepper motors
•pull-down resistors to keep motors disabled during power-up
•separate logic and motor power connections
•terminal block connectors for motors and power
•motor voltages from 4.5 VDC to 16 VDC
•2 connections for 5 V 'hobby' servos
•dimensions: 68 x 55 x 20 mm

4
Pin Layout
All 6 analogue input pins are available. They can also be used as digital pins (pins #14
through 19)
digital pin
function
#2, #13
not used
Following pins are only used if the DC/stepper is in use:
digital pin
function
#11
DC motor #1/stepper #1 (activation/speed control)
#3
DC motor #2/stepper #1 (activation/speed control)
#5
DC motor #3/stepper #2 (activation/speed control)
#6
DC motor #4/stepper #2 (activation/speed control)
Following pins are only used if any DC/steppers are in use:
digital pin
function
#4, #7, #8, #12
driving the DC/stepper motors via the 74HC595 serial-to-parallel latch
Following pins are only used if that particular servo is in use:
digital pin
function
#9
servo #1 control
#10
servo #2 control

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Example
In this example, we will control a DC motor through port M3.
********Code begin********
// Adafruit Motor shield library
// copyright Adafruit Industries LLC, 2009
// this code is public domain, enjoy!
#include <AFMotor.h> //DO NOT forget to include this library by "Sketch->Include Library-
>Add ZIP library " This library can be downloaded from the Velleman website.
AF_DCMotor motor(3);
void setup() {
Serial.begin(9600); // set up Serial library at 9600 bps
Serial.println("Motor test!");
// turn on motor
motor.setSpeed(200);
motor.run(RELEASE);
}
void loop() {
uint8_t i;
Serial.print("tick");

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motor.run(FORWARD);
for (i=0; i<255; i++) {
motor.setSpeed(i);
delay(10);
}
for (i=255; i!=0; i--) {
motor.setSpeed(i);
delay(10);
}
Serial.print("tock");
motor.run(BACKWARD);
for (i=0; i<255; i++) {
motor.setSpeed(i);
delay(10);
}
for (i=255; i!=0; i--) {
motor.setSpeed(i);
delay(10);
}
Serial.print("tech");
motor.run(RELEASE);
delay(1000);
}
********Code end********

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Modifications and typographical errors reserved - © Velleman Group nv. WPSH207_v01
Velleman Group nv, Legen Heirweg 33 - 9890 Gavere.