Quantity   Component name
1 × attiny85 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × SSD1306-based OLED 128x64 mini-display (I2C) One of those "screen + driver chip + all the extra components" packs
1 × Push button The reset button
1 × USB port For power only