Quantity   Component name
1 × ATtiny26 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
3 × 2n3904 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
7 × 220k ohm resistors
3 × common cathode 7 segment display
1 × sure electronics 3208 32x8 LED display (or other ht1632c-based)
1 × perfboard/protoboard (optional)