| Description | Vendor | p/n | DigiKey p/n | Place to order | |
| BT1 | 4 AAA battery holder | MPD | BH4AAA-W | BH4AAA-W-ND | |
| BT2 | 12mm coin battery holder | Keystone Electronics | 3000 | 3000K-ND | |
| 12mm coin battery | any | CR1220 | P033-ND | ||
| P1 | Microcontroller | Microchip | PIC 16F877-20/PT | PIC16F877-20/PT-ND | http://www.arrow.com |
| X1 | Triple inverter | Toshiba | TC7WU04F(TE12L) | TC7WU04FCT-ND | |
| U2 | Real time clock | Dallas Semiconductor | DS1302Z | n/a | http://shop.maxim-ic.com |
| U3 | Radio module | Radiometrix | BiM2 | n/a | http://www.lemosint.com |
| Y1 | Resonator 20MHz | ECS | ZTT-20.00MX | X909-ND | |
| Y2 | Crystal 32.768kHz 6pF | ECS | ECS-.327-6-17 | XC746CT-ND | |
| ACF | CF socket | AMP | 788667-1 | n/a | http://www.componentscenter.com |
| D1 | Zener Diod | National Semiconductor | LM385M3X-2.5 | LM385M3X-2.5CT-ND | |
| D2 | Diod | Diodes | B120-13 | B120DICT-ND | |
| D3 | Diod | Diodes | B120-13 | B120DICT-ND | |
| C1 | El cap 47 uF | Panasonic | ECE-V1AA470P | PCE2006CT-ND | |
| C2 | no component | ||||
| C3 | Cap 0.1 uF | Panasonic | ECJ-3VB1E104K | PCC1883CT-ND | |
| D4 | Grn/Red LED | Lite-On | LTL-14CHJ | 160-1058-ND | |
| S1 | Switch | E-Switch | EG1270 | EG1847-ND | |
| Q5 | P-ch mosfet | Fairchild Semiconductor | NDS352P | NDS352PCT-ND | |
| R1 | 7.5K resistor | Panasonic | ERJ-6GEYJ752V | P7.5KACT-ND | |
| R2 | 7.5K resistor | Panasonic | ERJ-6GEYJ752V | P7.5KACT-ND | |
| R3 | 10K resistor | Panasonic | ERJ-6GEYJ103V | P10KACT-ND | |
| R5 | 100K resistor | Panasonic | ERJ-6GEYJ104V | P100KACT-ND | |
| R6 | 100K resistor | Panasonic | ERJ-6GEYJ104V | P100KACT-ND | |
| R7 | 47K resistor | Panasonic | ERJ-6GEYJ473V | P47KACT-ND | |
| J1 | no component | ||||
| J2 | no component | ||||
| J3 | 6-pin female header | 3M/ISD | 929974-01-06 | 929974-01-36-ND | |
| J4 | 4-pin female header | 3M/ISD | 929974-01-04 | 929974-01-36-ND | |
| J5 | 18-pin female header | 3M/ISD | 929974-01-18 | 929974-01-36-ND | |
| J6 | 18-pin female header | 3M/ISD | 929974-01-18 | 929974-01-36-ND | |
| J7 | MITHRIL socket | Hirose Electric | CL235-0002-6 | n/a | http://www.hirose.com |