| U1,U4 | 74HCT541 | 8-bit Buffer/Line Driver 3-state outputs |
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| U2 | 74HC245 | Octal BUS Transceivers, 3-State outputs |
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| U3 | HD63C09P | 8-Bit Microprocessing unit 3.0MHz, DIP-40 |
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| U5 | 74HCT244 | 8-bit Buffer/Line Driver 3-state |
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| U6 | MIC1232 | 5V Voltage Supervisor with Manual Reset, Watchdog Timer, and Dual Reset Outputs |
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| A1 | Arduino Mega 2560 R3 | Shield for Arduino Mega 2560 R3 |
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| C1 | 470µF | Polarized capacitor, small US symbol |
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| C2-C7 | 0.1µF | Unpolarized capacitor, small symbol |
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| C8-C14 | 10µF | Polarized capacitor, small US symbol |
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| D2 | PWR LED | Light emitting diode |
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| J1 | 5V DC | DC Barrel Jack with a mounting pin |
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