This sample demonstrates how to control the HD44780 LCD using PCF8574's I2C with Android Things.
- Android Things compatible board
- Android Studio 3.1+
- 1 HD44780 LCD
- 1 PCF8574 I2C 8-bit expander
- jumper wires
- 1 breadboard
On Android Studio, click on the "Run" button.
If you prefer to run on the command line, from this repository's root directory, type
./gradlew sample-hd44780:installDebug
adb shell am start com.leinardi.android.things.sample.hd44780/.LcdActivityIf you have everything set up correctly, you will some example text on the LCD showing different features of the driver (print text, custom characters, turning the backlight and display on and of, etc).
Copyright 2018 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.