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Arduino Mega ADK 2560 ADK 副廠開發版 / 兼容 Google ADK 2012 Android 設備開發板
Arduino Mega ADK 2560 ADK 副廠開發版 是以Arduino mega 2560 控制板為基礎。它擁有一個USB接口可以和 Android手機或裝置連接。擁有54個數位輸入/輸出針腳(14個可以用於PWM輸出)、16個類比輸入、4個UART(硬體串列埠)，一個16 MHz石英震盪器，一個USB連接器、電源座、ICSP接頭和一個reset按鈕。
Arduino Mega ADK 2560 ADK 副廠開發版 是這樣一款基於面向設備的控制器，它的尺寸極為小巧，兼容 MEGA ADK與Google ADK。 Mega ADK可以讓使用 Google 的 ADK 來開發，可運行在 Android 2.3.4 或 3.1 上。可連接大量的傳感器和應用模塊，例如霍爾傳感器，按鈕模塊，熱敏電阻，加速度計，LDR，電位器，觸摸傳感器，操縱桿傳感器和MOSFET模塊等等。
技術規格
- 控制器：ATmega2560
- 工作電壓：5V
- 輸入電壓：7-12V
- 極限電壓：6-15V
- 數字口：54 個(其中14個 PWM 輸出)
- 模擬口：16個
- IO口輸出電流：40 mA
- 3.3V供電輸出電流：100 mA
- Flash ：256 KB of which 8 KB used by bootloader
- SRAM：8 KB
- EEPROM：4 KB
- 晶振：16 MHz
Mega ADK – R3
INTRODUCTION
The Arduino ADK is a microcontroller board based on the ATmega2560 (datasheet). It has a USB host interface to connect with Android based phones.It is compatible with Android’s Accessory Development Kit examples. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button.
The ADK is based on the Mega 2560.
Similar to the Mega 2560 and Uno, it features an Atmega8U2 programmed as a USB-to-serial converter.
The Android 3.1 platform (also backported to Android 2.3.4) introduces Android Open Accessory support, which allows external USB hardware (an Android USB accessory) to interact with an Android-powered device in a special “accessory” mode. When an Android-powered powered device is in accessory mode, the connected accessory acts as the USB host (powers the bus and enumerates devices) and the Android-powered device acts as the USB device.
Revision 3 of the board has the following new features:
- 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes.
- Stronger RESET circuit.
APPLICATIONS
- Develop accessories for Android (v2.3.4 and above) devices using ADK.
- For Android devices not supporting ADK, use MicroBridge to develop accessories.
- Make Android devices interact with the physical world as an Arduino compatible platform with 256K Flash.
- On board USB host makes it easy to interact with USB devices like pen drivers, keyboard, mouse, Bluetooth dongles, etc…
DOCUMENTS
- Google’s ADK documentation
- Arduino Mega ADK Eagle files
- ATmega 2560 pin mapping
- Arduino ADK product page
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