View source for Mini AVR USB ← Mini AVR USB

[[Category:AVR Development Boards]]
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''Mini_AVR with USB is a small rapid prototyping board based on atmega 8 controller from AVR. Comes with inbuilt bootloader and hence eliminates use of external programmer. It can also be used with Arduino software. The board has additional pads for male connectors, with which the board can be fixed on a bread board!''
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[[File:DSC08650.JPG|720x450px|Fig 1: Mini AVR  With USB]]
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Image:AVR Mini With USB.jpg
Image:DSC08797.JPG 
Image:AVR Mini USB 3d.JPG  
Image:AVR Mini USB With LCD 3d.JPG 
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=Features=
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*Comes with STK500/Arduino bootloader, hence no external programmer required.
*Can also be used with Arduino Software.
*Additional Pin headers to insert the board on breadboard or perfboard, ideal for prototyping.
*USB Interface CP2102: for communicating with the host computer.<br/>
*LCD Interface:16 characters,2 lines.<br/>
*Test Leds(2) and Switches(2).<br/>
*Breakout for all Ports.<br/>
*POT to test ADC.<br/>
*Breakout +5v,Gnd and Vin.<br/>
*Power Supply compatible with DC adapters.<br/>
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=Physical Features=
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*Dimensions:65mm X 90mm.
*1.6mm Glass Epoxy, FR4 PCB.
*Wave Soldered
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=Downloads=
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[http://exploreembedded.com/wiki/images/c/cc/MINI_AVR_USB_Schematic.pdf Schematic]<br/>
[http://exploreembedded.com/wiki/index.php?title=File:Arduino_code.zip Arduino Sample Code]<br/>
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=Programming and Usage=
=====Using the Board with AVR Studio and Flashing with XploreFlash=====
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Step 1: Xplore flash is based on various opensource software, it requires avrdude. Avrdude is part of WinAVR GCC complier. [http://sourceforge.net/projects/winavr/files/latest/download?source=files Download and install it.]

Step 2:To connect Development board with computer USB driver is required. 
[http://xplorelabz.com/wiki/images/d/d3/CP210x_VCP_Windows.zip Windows USB to UART Drivers for CP2102]
*For Other Operating system please download from [http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx Silicon Labs website.]

Step 3: Download and install [http://xplorelabz.com/wiki/images/e/ef/XploreFlash.zip XploreFlash GUI]. (XploreFlash GUI is based on AVRDUDESS) 

Step 4: Follow the steps on images below to flash the board.
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File:CP2102_Device_Manager.JPG
File:XploreFlash_Detect_MCU.JPG
File:XploreFlash_Flash_Verify.jpg
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Note: The GUI software will require [http://www.microsoft.com/en-gb/download/details.aspx?id=16614 .NET framework] 2.0 or later please download and install it.
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=====Using the Board with Arduino Software=====
For the board to appear in the arduino software add the following lines in the '''boards.txt''' file.<br/>File location:e.g: C:\Program Files\Arduino\hardware\arduino
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#################################################<br/>
atmega8.name=Explore AVR Mini USB w/ ATmega8<br/>
atmega8.upload.protocol=arduino<br/>
atmega8.upload.maximum_size=7168<br/>
atmega8.upload.speed=19200<br/>
atmega8.bootloader.low_fuses=0xdf<br/>
atmega8.bootloader.high_fuses=0xca<br/>
atmega8.bootloader.path=atmega8<br/>
atmega8.bootloader.file=ATmegaBOOT-prod-firmware-2009-11-07.hex <br/>
atmega8.bootloader.unlock_bits=0x3F<br/><br/>
atmega8.bootloader.lock_bits=0x0F<br/>
atmega8.build.mcu=atmega8<br/>
atmega8.build.f_cpu=16000000L<br/>
atmega8.build.core=arduino<br/>
atmega8.build.variant=standard<br/>
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<gallery>
File:Detect Board.png|1.The board shows up in arduino software
File:CP2102 Device Manager.JPG|2.Check exact COM port
File:Select_COM.png|3.Select the COM port.
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