Source the Parts
The parts you need are:
- a Membership Card kit from Lee Hart or the bare CPU board and the required components separately sourced.
- a 30 pin female header Digikey part S7028-ND or similar.
- an Olduino bare PCB available from me.
- The components for the Olduino itself:
- C1-C9 .1uf ceramic cap Digikey 445-5258-ND or similar
- IC1 74HC374N
- IC2 74HC595
- IC3,IC6 74HC00N
- IC5 ATMEGA328P – available pre-programmed from me or digikey ATMEGA328P-PU-ND. NOTE: make sure this is an ATMEGA328P not just ATMEGA328 and that it is a 20MHz part.
- IC7 74HC02
- IC8 74HC165
- J1 30 pin male header Digikey SAM1112-30-ND or similar. NOTE: the digikey price seems outrageous.
- J2 6 pin male header Digikey SAM1112-06-ND or similar
- J3, J4 8 position female headers Digikey S7006-ND or similar
- J5,J6 6 position female header Digikey S7004-ND or similar
- J7 3X2 pin male header for ICSP programming possibly Digikey 5-5176264-8-ND
- QLED 3mm Red LED
- R1 10k 1/8 watt resistor
- R2,R3,R5 1K 1/8 watt resistor
- R4,R6 0 ohm resistor (small piece of bare wire)
- S1 RESET SWITCH-MOMENTARY Digikey 450-1650-ND or similar
- SV3 6 pin right angle male header
- X1 20MHz ceramic resonator Digikey X909-ND or similar
Note that I have tried to give Digikey references for things but I have sourced components mainly from my parts drawer so I am not extremely confident. One excellent source for parts is the Seeed Studio Protoshield kit for arduino available at Radio Shack on sale now for $6.95. This will get you most of the headers you need, the switch, and a few resistors.