= Welcome Switch Science = Switch Science provides nearly 1000 products to Japanese market. In contrast, the product line up on this site is selected for international customers. Here, you can find FeliCa/NFC related products, our original products and some products in which we think you might be interested.[[br]] [http://international.switch-science.com/ Switch Science international web shop] = How to use the Switch Science USB Stick. = The Switch Science USB Stick is Fantastic USB device for [http://summit.oshwa.org/ Open Hardware Summit] comers.[[br]] You can see sparkling three colors LEDs that have many brink patterns, when insert the USB Stick to your any USB port.(*1)[[br]] [[Image(OHS_SSCI_STICK_QUARTET.jpg)]] [attachment:OHS_SSCI_STICK_MOVIE.m4v Switch Science USB Stick Quartet movie] The USB stick is only USB accessory now. But it has AVR micro-controller that was made by Atmel corporation with three colors LEDs.[[br]] And it has 6 pin socket pattern(*2) and some parts for V-USB(*3). You can develop and execute another AVR program for this USB stick, if you have AVR development environment and AVR writer. == License == [http://creativecommons.org/licenses/by-sa/3.0/ CC BY-SA 3.0] == Schematic == [[Image(OHS_SSCI_STICK.png,320px)]][[br]] PDF Schematic is here. [attachment:OHS_SSCI_STICK.pdf][[br]] Eagle Cad Schematic and board data Archive is here. [attachment:OHS_SSCI_STICK.zip] == Board == [[Image(OHS_SSCI_STICK.brd.png,320px)]][[br]] PDF board is here. [attachment:OHS_SSCI_STICK.brd.pdf][[br]] == BOM(Bill of Material) == ||'''Parts'''||'''Name'''||'''Value'''||'''Package'''||'''Part Number'''||'''Manufacturer'''|| ||C1||Capacitor||0.1uF||1608(metric)||||Any|| ||R1||Resistor||1.5k ohm||1608(metric)||||Any|| ||R2, R3||Resistor||33 ohm||1608(metric)||||Any|| ||R4, R5, R6||Resistor||1k ohm||1608(metric)||||Any|| ||R7||Resistor||10k ohm||1608(metric)||||Any|| ||LED1||LED||RED||1608(metric)||||Any|| ||LED2||LED||GREEN||1608(metric)||||Any|| ||LED3||LED||BLUE||1608(metric)||||Any|| ||U1||MCU||ATTINY85||SOIC8_EIAJ_208MIL||ATTINY85-20SU||Atmel|| ||D1||Diode||Zener||SOT23||AZ23C3V6-7-F||Diode|| == Software == Hex file : [attachment:OHS_SSCI_STICK.hex][[br]] Assembler Source file : [attachment:OHS_SSCI_STICK.asm][[br]] The Assembler Source file can assemble AVRStudio4 and [http://avra.sourceforge.net/ avra] == Notice == (*1) Switch Science USB Stick is a little thin as a USB standard board.[[br]] If the USB Stick can not match your USB port, you should paste some paper (ex.name card) to the USB Stick backside please.[[br]] [[Image(OHS_SSCI_STICK_PAPER.jpg)]] (*2) 1st pin is Near 'LED3' pin.[[br]] ||Pin 1||RESET|| ||Pin 2||Vcc(5V)|| ||Pin 3||GND|| ||Pin 4||MOSI|| ||Pin 5||MISO|| ||Pin 6||SCK|| [[Image(OHS_SSCI_STICK_PIN.jpg)]] (*3) V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR microcontrollers. [http://www.obdev.at/products/vusb/index.html V-USB]