| Description | Price | Source |
| Protoboard (3 columns + aluminum backing) | $19.00 | Electronix Express |
| Microcontroller P89C51RD2 | $10.00 | Pioneer |
| 4x4 keypad | $5.00 | BG Micro |
| Liquid Crystal Display (LCD) 16x2 characters | $4.00 | BG Micro |
| Wire Stripper | $3.00 | WebTronics |
| Analog to Digital Converter IC ADC0804LCN | $2.60 | Pioneer |
| Wall AC-DC Adapter: 7.5VDC@1.3A | $1.25 | BG Micro |
| Serial Driver/Receiver DS14C232CN | $1.10 | Pioneer |
| 11.059 MHz crystal oscillator | $0.84 | Pioneer |
| Mini Motor 3V .33A Mabuchie FF-N20PN | $0.80 | BG Micro |
| Speaker - 8 ohm, .25W, 2-1/4" diameter | $0.69 | BG Micro |
| IC Chip puller | $0.70 | BG Micro |
| Single-Side Serial Cable: DB-9 Female to Wires | $0.50 | BG Micro |
| 1/4" Electret Microphone 2.5V | $0.50 | BG Micro |
| 5-volt regulator LM7805 | $0.17 | Pioneer |
| 386 audio amp | $0.16 | Pioneer |
| lLM358 Op Amp | $0.11 | Pioneer |
