Parts needed and their Digikey numbers

Part            number        Digikey part number        approx cost

IR module         1           160-1163                    $2.50
IR LEDs           2           160-1061                     0.60
2950 LDO          1           LP2950CZ-5.0                 2.50
Schotkey diodes   6           SD103ACT                     2.00
10K resistor      2           10KEBK                      trivial
4.7K resistor     1           4.7KEBK                     trivial
2.2K resistor     2           2.2KEBK                     trivial
47 ohm resistor   1           47EBK                       trivial
47uf capacitor    1           P834                         0.40
.1uf ceramic cap  1           1203PHCT                     0.15
12C508 PIC        1           I supply                     8.00
PC board          1           You'll have to make         

Two small pieces of 3/16 inch black shrink tube about 1/4 + inches each