Quantity   Component name
1 × Atmel ATTiny85 uC
1 × MAX7219 Interface and IO ICs / Display Interface
1 × SFH3710 Opto and Fiber Optic Semiconductors and ICs / Photo Transistors
1 × 8x8 LED Dot Matrix 32x32mm
1 × CR2032 Batteries and Battery Accessories / Batteries