U-Disp - The Digg (tm) display (Open Source)

Step 9 The final schematic

Here is the complete schematic.

Depending on if the boards is the first (with USB) or one of the others (without USB but with the crystal instead) the list of components needed will vary a bit.

First card
1pcs 556-ATTINY2313V10PU Atmel Microcontrollers ATTINY2313V-10PU $ @ 1.94
1pcs 895-FT232RL FT232RL USB TO SERIAL @ $3.99
8pcs 512-BC547BTA BC547 Small Signal Transistors NPN 45V 100mA @ $0.02
4pcs 604-DA5611EWA DA5611-EWA Kingbright Dual LED Displays CA @ $1.13
9pcs 299-82-RC 82ohms 1/8W 5% Resistors @ $0.02
1pcs 299-10K-RC 10Kohm 1/8W 5% Resistors @ $0.02
1pcs 140-MLRL10V100-RC Electrolytic Capacitor 6.3X7MM 10V 100uF @ $0.12
2pcs 581-5ZH104ZACJA Ceramic Disc Capacitors 50volt 100nF @ $0.14
1pcs 538-67068-8001 USB TYPE B Connector @ $1.31

Other cards
1pcs 556-ATTINY2313V10PU Atmel Microcontrollers ATTINY2313V-10PU $@ 1.94
1pcs 520-HCU600-SX HC-49/U-S Microprocessor Crystal 6MHz @$0.47
8pcs 512-BC547BTA BC547 Small Signal Transistors NPN 45V 100mA @ $0.02
4pcs 604-DA5611EWA DA5611-EWA Kingbright Dual LED Displays CA @ $1.13
9pcs 299-82-RC 82ohms 1/8W 5% Resistors @ $0.02
1pcs 299-10K-RC 10Kohm 1/8W 5% Resistors @ $0.02
1pcs 140-MLRL10V100-RC Electrolytic Capacitor 6.3X7MM 10V 100uF @ $0.12
2pcs 140-50N5-200J-RC Ceramic Disc Capacitors 50V 20pF @ $0.06
1pcs 581-5ZH104ZACJA Ceramic Disc Capacitors 50volt 100nF @ $0.14
1pcs 538-10-89-7061 Molex VERT BRKAWAY HDR 6P @ $0.26

The numbers in "italics"above are the part numbers from Mouser Electronics.. The prices might be a bit higher on some of the parts since these are the prices that I got when I ordered enough parts for building 10 boards.