Counter Module 3 Digit Red Display
www.amazon.com/gp/product/B0CPSHZSXR/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
LED Roulette (DIY Practical Soldering Practice Kit)
www.amazon.com/gp/product/B0CW9RWRTT/ref=ppx_yo_dt_b_asin_image_o04_s00?ie=UTF8&psc=1
Micro Limit Switch, 2.2 inch Micro Switch with Lever SPDT 1NO 1NC
www.amazon.com/gp/product/B07ZVJD1GC/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&th=1
Multicolor Fast Blinking LED
www.amazon.com/gp/product/B01C19ENG4/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&th=1
LMC555 CMOS Timer
www.mouser.com/c/semiconductors/clock-timer-ics/timers-support-products/?series=LMC555&srsltid=AfmBOorYStaqdlAYgoLv8EXhANZlYtL4SQzcnRz6K2efnRCDwOYemc5V