Neopixel addressable multicolor LEDs -
https://learn.adafruit.com/adafruit-neopixel-uberguideRemote control -
https://www.tinkercad.com/things/j7iJBnOyqZc
Remote control
https://www.tinkercad.com/things/hfjesKrhwsc
Keypad
https://www.circuitbasicstinkercad.com/arduino-ir-remote-receiver-tutorial/, things/8iDg0ZuguN8
LCD Display
https://www.instructablestinkercad.com/id/IR-Transmitter-and-Receiver-Using-Arduino/, 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://createwww.arduino.cc/projecthub/electropeak/use-an-ir-remote-transmitter-and-receiver-with-arduino-1e6bc8tinkercad.com/things/1Sg0hWGQjIU
RGB LED