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How to use the SWITCH-SCIENCE USB Stick.

The SWITCH-SCIENCE USB Stick is Fantastic USB device for ​Open Hardware Summit comers.
You can see sparkling three colors LEDs that have many brink patterns, when insert the USB Stick to your any USB port.(*1)

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.
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

​CC BY-SA 3.0

Schematic

PDF Schematic is here. OHS_SSCI_STICK.pdf​
Eagle Cad Schematic and board data Archive is here. OHS_SSCI_STICK.zip​

Board

PDF board is here. OHS_SSCI_STICK.brd.pdf​

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 : OHS_SSCI_STICK.hex​
Assembler Source file : OHS_SSCI_STICK.asm​
The Assembler Source file can assemble AVRStudio4 and ​avra

Notice

(*1) Switch-Science USB Stick is a little thin as a USB standard board.
If the USB Stick can not match your USB port, you should paste some paper (ex.name card) to the USB Stick backside please.

(*2) 1st pin is Near 'LED3' pin.

Pin 1	RESET
Pin 2	Vcc(5V)
Pin 3	GND
Pin 4	MOSI
Pin 5	MISO
Pin 6	SCK

(*3) V-USB is a software-only implementation of a low-speed USB device for Atmel’s AVR microcontrollers. ​V-USB