The user interface on the Nordic Thingy:53™ consists of an RGB LED and two buttons.
RGB LED
The Nordic Thingy:53 is equipped with a single RGB LED (LD1) that is controlled by three signals from the nRF5340 SoC that are connected to transistors acting as switches.
Buttons
The Nordic Thingy:53 has two buttons that are connected to the nRF5340 SoC.