Added A4988 module

a4988/.gitignore

@@ -0,0 +1 @@
+/build

a4988/build.gradle

@@ -0,0 +1,61 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+apply plugin: 'groovyx.android'
+apply from: rootProject.file('gradle/gradle-mvn-push.gradle')
+
+buildscript {
+
+    dependencies {
+        classpath rootProject.ext.kotlinPlugin
+    }
+}
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.2"
+
+    defaultConfig {
+        minSdkVersion 24
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    sourceSets {
+        test.java.srcDirs += 'src/test/groovy'
+    }
+
+    testOptions {
+        unitTests.returnDefaultValues = true
+    }
+
+    androidGroovy {
+        options {
+            // We don't use groovy in production code so we'd like to disable Groovy processing.
+            configure { GroovyCompile task ->
+                task.enabled = task.name.contains("Test")
+                project.logger.info("Checking whether groovy should be enabled for $task.name: ->> $task.enabled\n")
+            }
+        }
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile rootProject.ext.libs.appcompat
+    compile rootProject.ext.libs.kotlin
+    provided rootProject.ext.libs.android_things
+    testCompile rootProject.ext.libs.junit
+    testCompile rootProject.ext.libs.groovy
+    testCompile rootProject.ext.libs.spock
+    testCompile rootProject.ext.libs.mockito
+}

a4988/gradle.properties

@@ -0,0 +1,5 @@
+POM_ARTIFACT_ID=a4988
+POM_NAME=A4988
+POM_PACKAGING=aar
+VERSION_NAME=0.0.1-SNAPSHOT
+POM_DESCRIPTION=Android Things user driver for stepper motor A4988 driver

a4988/src/main/AndroidManifest.xml

@@ -0,0 +1,12 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.polidea.androidthings.driver.a4988">
+
+    <application
+        android:allowBackup="true"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        >
+
+    </application>
+
+</manifest>

a4988/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">A4988</string>
+</resources>

app/build.gradle

@@ -77,9 +77,9 @@ kapt {
 }
 
 dependencies {
-
     compile project(':numpad')
     compile project(':uln2003')
+    compile project(':a4988')
     compile rootProject.ext.libs.kotlin
     compile rootProject.ext.libs.appcompat
     provided rootProject.ext.libs.android_things

settings.gradle

@@ -1 +1 @@
-include ':app', ':uln2003', ':numpad'
+include ':app', ':uln2003', ':numpad', ':a4988'