Difference between revisions of "Microduino-USBhost"

Microduino-USBHOST

Microduino USBHOST mainly supply the USB host function for some equipment, supports USB host controller and USB peripherals, such as mobile phones OTG function, keyboards, joystick, and camera.

Features

• Support MicroUSB interface；
• Small, cheap, stackable, opened platfrom;
• Open source hardware circuit design, compatible with the Arduino IDE development environment for programming;
• Define unified interface Microduino specification and contain rich peripheral modules. Set up the quick connection with other Microduino modules and sensors easily and flexibly.
• 2.54 pitch row female connector for easy integration into breadboard.

Specifications

• Electrical specifications
  • 3.3V or 5V power;
  • USB host uses power protocol of 5V/500mA;
  • Using TC74HC4050 level conversion chip, provides the high anti-interference and stable output;
  • D+, D- and VBCOMP has ESD protection function;
  • The firmware/hardware control internal D+ pull up resistors (peripherals mode) and D+/D- pull down resistor (host mode);

• Communication
  • Compatible with the MAX3420E USB peripheral which has the SPI interface;
  • Comply with USB 2.0 specification (12 Mbps peripherals at full speed, full speed/low speed 12Mbps/1.5 Mbps host);
  • Smart USB SIE；
  • Automatic processing of USB flow control and double buffer;
  • Process low level USB signaling.

• Supported devices：
  • HID devices, such as keyboards, mouse, joystick and so on;
  • Game controller - Sony PS3，Nintendo Wii，XBOX360；
  • USB-to-serial converter - FTDI，PL-2303，ACM，mobile phones with OTG function and GPS receiver;
  • Android mobile with ADK function；
  • Digital Camera - Canon EOS's Powershot, Nikon digital SLR cameras and P&S, and general PTP;
  • Mass storage devices, such as U disk, card reader, external hard drive；
  • Bluetooth dongle.

• Pin description：

Microduino-USBHOST-Pinout

Document

Eagle PCB local download Main components：

• Voltage converter chip：TC74HC4050 File:TC74HC4050AF.pdf
• Main control chip：MAX3421E File:MAX3421E.pdf

Development

• Need library： https://github.com/felis/USB_Host_Shield_2.0
• Serial debug is disabled under default condition.
  • You need open the file "settings.h" from library folder;
  • Find “#define ENABLE_UHS_DEBUGGING 1”, an then change to “#define ENABLE_UHS_DEBUGGING 1”, then save it.
• USB_Host_Shield_2.0 library usage：
  • Bluetooth libraries：

An ordinary Bluetooth adapter. You can easily add different Bluetooth services, such as a PS3 or Wii controller or SPP which is supported through Bluetooth virtual serial port. A number of different examples can be found in the examples directory.

• • HID library：

Connect USB peripherals. Such as a mouse, handle etc.

• • BTHID library：

Connect HID devices via Bluetooth, currently supports HID mouse and keyboard.

• • SPP library：

Allow you send data to your Microduino from PM/mobile phone via Bluetooth.

• • PS4 Library：

Allow you to use the Sony PS4 controller via Bluetooth and USB.

• • PS3 Library：

Use DUALSHOCK3, navigation or motion controller via Bluetooth and USB.

• • Xbox Libraries：
  • Xbox Libraries：

The library uses USB as the Xbox 360 controller.

Application

Light a LED via a mobile using the ADK example library：

Prepare work

• Prepared hardware：Microduino FT232R, Microduino Core, Microduino USBHOST, OTG cable, make sure your Android device supports and turn on the USB debug mode, USB cable；
• Prepared software：USB_Host_Shield_2.0 library, Arduino IDE(1.0 release and upper);
• Uncompress the zip folder and rename to “USB_Host_Shield” becasue Arduino IDE doesn't support any special characters, then copy to libraries folder of Arduino IDE；
• Connect the Microduino FT232R and PC using USB cable to download program and serial monitor；
• Connect a LED to I/O port D6 of Microduino-Core；

Debug

• Open the example program "ArduinoBlinkLED" from ADK folder of examples；
• Change LED_BUILTIN to Microduino pin in "#define LED LED_BUILTIN", such as "#define LED 6". But can't be D13, because D13 is used as SCK.
• After compiled, select the board "Microduino Core (Atmega328P@16M,5V)", download directly；
• Connect the mobile phone and Microduino USBHOST by OTG cable and USB cable;
• Open the serail monitor, will display "Arduino Blink LED Started";
• The phone will automatically pop up the application "ArduinoBlinkLED", download and install it；
• After installed the application, will prompte to open the USB connection fittings, and click OK to enter the program interface;
• Successful connection will show "connected", and can control the LED light on and off via the button.

Bug

History

Picture

Front

Microduino-USBHOST Front

Back

Microduino-USBHOST Back

Video