Displays, LEDs and lights
Raspberry Pi touchscreen 7"is handy,user friendly device functioning as a display screen and a tablet for IOT applications.
HDMI Plug Breakout Board is a light weight ,less expensive breakout board.
TFP401 HDMI/DVI Decoder to 40-Pin TTL Breakout - With Touch is a mini version decoder for any kind of video.
NeoPixel Ring - 16 x 5050 RGB LED with Integrated Drivers works best as a wearable with a pack of 16 LED'S in a circular pattern.
Flexible 8x32 NeoPixel RGB LED Matrix is a malleable with 256 inbuilt LED's.
NeoPixel Ring - 12 x 5050 RGB LED with Integrated Drivers is a ring of 12 LED'S controlled by one single micro-controller.
WS2812B RGB Addressable LED Strip - 1 m - Waterproof - 30 LEDs/meter contains a strip of inbuilt LED'S.
NeoPixel Jewel - 7 x 5050 RGB LED with Integrated Drivers comes with 7 LED'S in a round PCB using only one microcontroller pin.
The SparkFun Micro OLED Breakout Board is a visual display unit that is big enough to fit the chosen graphics.
SparkFun MicroView - OLED Arduino Module is a display unit compatible for your Arduino,which reflects essential data from your Arduino board.
This is one of the easiest ways to include a lot of controllable RGBs LEDS into your Arduino or other microcontroller project.