- 1 x 28-pin DIP Atmel ATmega328p Microcontroller
- 1 x 28-pin DIP socket
- 1 x 7805 5-V linear voltage regulator
- 1 x Lite-On 4301-package 7-segment display
- 1 x 16 MHz Crystal
- 1 x SPST tactile switch/button, normally open, momentarily closed
- 1 x SPDT slide switch
- 1 x 2 rows, 6 positions header
- 1 x female 2.1 mm barrel jack
- 1 x black female banana plug jack
- 1 x red female banana plug jack
- 1 x 300 ohm resistor, 0.25W
- 7 x 110 ohm resistor, 0.25W
- 2 x 100 kohm resistor, 0.25W
- 2 x 22 pF ceramic capacitor, 100V
- 1 x 0.1 microF ceramic capacitor, 50V
- 1 x 0.33 microF ceramic capacitor, 50V
- Motorola/Freescale MC14489B
- Lite-On LTC-4727JR 4-Digit Display
- ATmega 328P-PU
- 7805
- PTV09A-2020F-A502 Bourns 5k Poteniometer
- PTV09A-2020F-A103 Bourns 10k Poteniometer
- Push Button - Momentary On - Schurter 1301.9305
- E-Switch EG2301A (6mm-tall switch arm)
- 108-0903-001 (Black)
- 108-0902-001 (Red)
- Op-Amp for voltage follower
- TE Connectivity 1-971111-3 Flat Cable 10C 28AWG
- 3365/10-CUT-LENGTH 3M
- OMRON XG4M-1030-T Cable Crip Connector Female
- OMRON XG4C-1031 PCB Socket Male