Neopixel addressable multicolor LEDs
https://learn.adafruit.com/adafruit-neopixel-uberguide
https://www.tinkercad.com/things/j7iJBnOyqZc
Remote control
https://www.tinkercad.com/things/hfjesKrhwsc
Keypad
https://www.tinkercad.com/things/8iDg0ZuguN8
LCD Display
https://www.tinkercad.com/things/0MhV63pJ9lb
Motion Sensor and Relay
https://www.tinkercad.com/things/0TivcnZO5H6
Temperature Sensor
https://www.tinkercad.com/things/7KlkHaxx20c
7-Segment display
https://www.tinkercad.com/things/jHnKkUAsyFg
Gas sensor
https://www.tinkercad.com/things/1Sg0hWGQjIU
RGB LED