Quantity   Component name
1 × ATMega 328P microcontroller chip Using this as the brains of the computer.
1 × CardKB QWERTY keyboard Interfaces with the Arduino via I2C
1 × 0.96 inch OLED SPI display (SSD1306 compatible) Can use different sizes
1 × 9V PP3 battery Great battery life
1 × 24LC256 EEPROM For storing BASIC programs - 32KB of storage in fact
1 × Empty Altoids tin
1 × Small Piezo buzzer For authentic beeper-style sound
1 × L7805 5V voltage regulator
1 × 4.7k resistor Pull-up for I2C bus
1 × 220 ohm resistor Used with LED
1 × 10k resistor Used for ATMega328P reset line
1 × Grove connector For connecting the CardKB keyboard
1 × 16MHz crystal
2 × 22pF capacitor Used with the crystal
1 × 10uF capacitor Smooths the power supply
1 × 0.1uF capacitor Used with L7805
1 × 0.33uF capacitor Used with L7805
1 × 2 way DIP switch For power and buzzer on/off
1 × PP3 connector For connecting 9 volt battery
1 × 5mm LED Can be accessed from eMBee BASIC