Added pcf8574-hd44780 driver

README.md

@@ -35,7 +35,8 @@ dependencies {
 <!-- DRIVER_LIST_START -->
 Driver | Type | Usage (add to your gradle dependencies) | Note
 :---:|:---:| --- | ---
-[driver-sh1106](driver-sh1106) | OLED display | `implementation 'com.leinardi.androidthings:driver-sh1106:0.1'` | [![Bintray](https://img.shields.io/bintray/v/leinardi/androidthings/driver-sh1106.svg)](https://bintray.com/leinardi/androidthings/driver-sh1106) [changelog](driver-sh1106/CHANGELOG.md)
+[driver-pcf8574-hd44780](driver-pcf8574-hd44780) | LCD | `implementation 'com.leinardi.androidthings:driver-pcf8574-hd44780:0.1'` | [![Bintray](https://img.shields.io/bintray/v/leinardi/androidthings/driver-pcf8574-hd44780.svg)](https://bintray.com/leinardi/androidthings/driver-pcf8574-hd44780) [changelog](driver-pcf8574-hd44780/CHANGELOG.md) [sample](sample-pcf8574-hd44780)
+[driver-sh1106](driver-sh1106) | OLED display | `implementation 'com.leinardi.androidthings:driver-sh1106:0.1'` | [![Bintray](https://img.shields.io/bintray/v/leinardi/androidthings/driver-sh1106.svg)](https://bintray.com/leinardi/androidthings/driver-sh1106) [changelog](driver-sh1106/CHANGELOG.md) [sample](sample-sh1106)
 <!-- DRIVER_LIST_END -->
 
 ## License

driver-pcf8574-hd44780/.gitignore

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

driver-pcf8574-hd44780/CHANGELOG.md

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+# Change Log
+
+## [0.1] - 2017-12-19
+- initial version

driver-pcf8574-hd44780/README.md

@@ -0,0 +1,87 @@
+# HD44780 LCD driver for Android Things
+
+[![Bintray](https://img.shields.io/bintray/v/leinardi/androidthings/driver-pcf8574-hd44780.svg?style=plastic)](https://bintray.com/leinardi/androidthings/driver-pcf8574-hd44780)
+[![Build Status](https://img.shields.io/travis/leinardi/androidthings-drivers/master.svg?style=plastic)](https://travis-ci.org/leinardi/androidthings-drivers)
+[![GitHub license](https://img.shields.io/github/license/leinardi/androidthings-drivers.svg?style=plastic)](https://github.com/leinardi/androidthings-drivers/blob/master/LICENSE)
+
+This driver supports LCD peripherals built on the HD44780 chip and controlled with the PCF8574 chip.
+
+NOTE: these drivers are not production-ready. They are offered as sample
+implementations of Android Things user space drivers for common peripherals
+as part of the Developer Preview release. There is no guarantee
+of correctness, completeness or robustness.
+
+This driver is based on the [lcd-pcf8574-androidthings driver from Nilhcem](https://github.com/Nilhcem/lcd-pcf8574-androidthings)
+and the [hd44780-i2c driver from gorskima](https://github.com/gorskima/hd44780-i2c) 
+
+## How to use the driver
+
+### Gradle dependency
+
+To use the `driver-pcf8574-hd44780` driver, simply add the line below to your project's `build.gradle`,
+where `<version>` matches the last version of the driver available on [jcenter][jcenter].
+
+```
+dependencies {
+    implementation 'com.leinardi.androidthings:driver-pcf8574-hd44780:<version>'
+}
+```
+
+### Sample usage
+
+```java
+import com.leinardi.androidthings.driver.pcf8574.hd44780.Hd44780;
+
+// Access the LCD:
+Hd44780 mLcd;
+
+try {
+    mLcd = new Hd44780(BoardDefaults.getI2CPort(), Hd44780.I2cAddress.PCF8574AT, Hd44780.Geometry.LCD_20X4);
+} catch (IOException e) {
+    // couldn't configure the LCD...
+}
+
+// Draw on the screen:
+
+try {
+     mLcd.setBacklight(true);
+     mLcd.cursorHome();
+     mLcd.clearDisplay();
+     mLcd.setText("Hello LCD");
+     int[] heart = {0b00000, 0b01010, 0b11111, 0b11111, 0b11111, 0b01110, 0b00100, 0b00000};
+     mLcd.createCustomChar(heart, 0);
+     mLcd.setCursor(10, 0);
+     mLcd.writeCustomChar(0);
+} catch (IOException e) {
+    // error setting LCD
+}
+
+// Close the LCD when finished:
+
+try {
+    mLcd.close();
+} catch (IOException e) {
+    // error closing LCD
+}
+```
+
+## License
+
+Copyright 2017 Roberto Leinardi
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
+
+[jcenter]: https://bintray.com/leinardi/androidthings/driver-pcf8574-hd44780/_latestVersion

driver-pcf8574-hd44780/build.gradle

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2017 Roberto Leinardi.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.android.library'
+apply from: rootProject.file('checkstyle.gradle')
+
+android {
+    compileSdkVersion build_versions.target_sdk
+    buildToolsVersion build_versions.build_tools
+
+    apply from: 'mavenConfig.gradle'
+
+    defaultConfig {
+        minSdkVersion build_versions.min_sdk
+        targetSdkVersion build_versions.target_sdk
+        versionCode build_versions.version_code
+        versionName mvn_config.version as String
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    compileOptions {
+        sourceCompatibility build_versions.java_version
+        targetCompatibility build_versions.java_version
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    compileOnly deps.androidthings
+    implementation deps.support.annotations
+
+    testImplementation deps.androidthings
+    testImplementation deps.powermock.module_junit4
+    testImplementation deps.powermock.api_mockito
+}

driver-pcf8574-hd44780/maven.gradle

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2017 Roberto Leinardi.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.github.dcendents.android-maven'
+
+install {
+    repositories.mavenInstaller {
+        pom.project {
+            name 'driver-pcf8574-hd44780'
+            description 'Android Things driver for SH1106'
+            url 'https://github.com/leinardi/androidthings-drivers'
+            inceptionYear '2017'
+
+            packaging 'aar'
+            groupId 'com.leinardi.androidthings'
+            artifactId 'driver-pcf8574-hd44780'
+            version '0.1'
+
+            licenses {
+                license {
+                    name 'The Apache Software License, Version 2.0'
+                    url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                    distribution 'repo'
+                }
+            }
+            scm {
+                connection 'https://github.com/leinardi/androidthings-drivers.git'
+                url 'https://github.com/leinardi/androidthings-drivers'
+
+            }
+            developers {
+                developer {
+                    name "Roberto Leinardi"
+                    email "[email protected]"
+                }
+            }
+        }
+    }
+}

driver-pcf8574-hd44780/mavenConfig.gradle

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2017 Roberto Leinardi.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+def mvn_config = [:]
+mvn_config.repository = 'androidthings'
+mvn_config.group_id = 'com.leinardi.androidthings'
+mvn_config.artifact_id = 'driver-pcf8574-hd44780'
+mvn_config.version = '0.1'
+mvn_config.licenses = 'Apache-2.0' // Comma separated
+mvn_config.website = 'https://github.com/leinardi/androidthings-drivers'
+mvn_config.issue_tracker_url = 'https://github.com/leinardi/androidthings-drivers/issues'
+mvn_config.vcs_url = 'https://github.com/leinardi/androidthings-drivers.git'
+mvn_config.description = 'PCF8574-HD44780 LCD driver for Android Things'
+mvn_config.tags = 'pcf8574,hd44780,android-things,android,raspberry-pi' // Comma separated
+mvn_config.inception_year = '2017'
+mvn_config.dryRun = false
+mvn_config.publish = false
+mvn_config.override = true
+
+ext.mvn_config = mvn_config
+
+apply from: rootProject.file('maven.gradle')
+apply from: rootProject.file('bintray.gradle')

driver-pcf8574-hd44780/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

driver-pcf8574-hd44780/src/main/AndroidManifest.xml

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+<!--
+  ~ Copyright 2017 Roberto Leinardi.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.leinardi.androidthings.driver.pcf8574.hd44780" />