| ref | value | footprint | Item count |
| C1,C2 | 22uF 10V | B | 2 |
| C3,C4 | 10nF | 1206 | 2 |
| CON3 | 5V POWER | DC Socket | 1 |
| CONN1 | EXT._I/O | 2x20pin header socket | 1 |
| D1 | BAT54 | SOD-123 | 1 |
| D3,D4,D9 | BAS28 | SOT-143 | 3 |
| D7,D8 | SD103 (or MBR130LSFT1G) (not MMSD103) | SOD-123 | 2 |
| IC1,IC2 | 74LVC646A (SN74LVC646A is OK, SN74LVC646 isn't) | SOIC24 | 2 |
| IC3 | 74HCT74 | SOIC14 | 1 |
| IC4 | 74HCT08 | SOIC14 | 1 |
| J1 | JUMPER | 2pin R/A Header (or wire link) | 1 |
| Q1,Q2 | BC848 (or BC849) | sot23 | 2 |
| R1,R3..R7,R10,R12..R18,R26,R27 | 1K | 1206 | 14 |
| R2,R8,R9,R11 | 10K | 1206 | 4 |
| R19..R25 | 100K | 1206 | 7 |