Android + Arduino test program (Full color LED controls)

Requirements (Hardware)

• Arduino UNO board
• Android device (Android 3.2+)
• USB host cable (micro B plug - standard A receptacle)
• USB 2.0 cable (standard A plug - standard B plug)
• Full color LED (common anode), Register (1 kOhm) x 3, Bread board, Jumper wires
• (+5V AC adapter)

Setup

Android

1. Install 'Android Studio (v0.3.6 or later)'
2. Place usb-serial-for-android library in Android/UsbSerialLibrary/src/main/java directory (see. Android/UsbSerialLibrary/src/main/java/NOTE.txt)
3. Import Android project (Android/)
4. Build & Run

Arduino

1. Install 'Arduino IDE (v1.0.5 or later)'
2. Open Arduino project (Arduino/FullColorLED)
3. Build & Upload to target

Hardware

Make the following curcuit on bread boead.

• LED (Anode): +5V
• LED (RED) -> Register -> DIGITAL ~9
• LED (GREEN) -> Register -> DIGITAL ~10
• LED (BLUE) -> Register -> DIGITAL ~11

Connect Android device and Arduino board with USB cables.

• {Android} - {USB host cable} - {USB standard cable} - {Arduino UNO}

Command protocol

Common format

"[command] [parameter]\n"

Commands

• "R brightness(0-255)"
  • ex.) "R 100"
• "G brightness(0-255)"
  • ex.) "G 100"
• "B brightness(0-255)"
  • ex.) "B 100"

Depenedency libraries

• usb-serial-for-android
  • (https://github.com/mik3y/usb-serial-for-android)