Hello, Saw this project and decided to help correct the errors in the schematic files for hello-bulb project.

This project is loosely based on USBTiny from website http://dicks.home.xs4all.nl/avr/usbtiny/

Moved the 3.6V zener diodes to the USB side of the 68 ohms resistors. Left the on 1.5K ohm resistor connected to a VBUS connection to the USB port. Added a second 1.5K ohm resistor from USB port side of D- trace back to input PD3 on the U1 Attiny 2313. This resistor can be not solder in, if not needed in your design. Added a 3 pin power jack connector for powering board externally ( disconnecting and not using the USB power source ). Maybe add a 2 pin port to VCC and GND.

Added the 6 pin AVR-ISP-6 connector for programming in circuit this ATTiny2313 from a ICSP cable or from another Arduino. Added a 8 pin connector to bring the unused pins from the microcontroller to a connector. Added another LED diode and resistor to output PD5 pin 9. You can omit these parts, when building the board.

Used the KiCAD ATMEL.LIB library to import the AVR-ISP-6 connector. Used the KiCAD CONN.LIB library (modified name to conn-flf.lib) add / import to hello-bulb progect and not conflict with exsiting conn.lib library.

The USB_Plug component module ATTiny2313 had a couple pin wires aligned with the right hand side of the chip. Pin 11 PD6 and PD?? Pin ??

Added folder "mylib" to contain new atmel.lib and conn-flf.lib schematic symbol libraries Added folder "documents" to contain document files related to ATTiny2313 and this hello-bulb PCB Board Added folder "documents/images" to contain .PNG and .JPG image files related to ATTiny2313 and this schematic.

Used the KiCAD ATMEL.LIB library to import the AVR-ISP-6 connector. Used the KiCAD CONN.LIB library (modified name to conn-flf.lib) add / import to hello-bulb progect and not conflict with exsiting conn.lib library.

TODO:

route the board, from the schematic. find and use the footprints for the PCB layout

WB7ODY Fred July 19, 2014