ESP32-C3-LCDkit is a development board used for evaluating rotary knob applications. The board consists of a mainboard and a subboard. The mainboard integrates the ESP32-C3-MINI-1 module, a speaker, an EC11 rotary encoder, an infrared sensor, and more. The subboard features a 1.28-inch SPI interface screen with a resolution of 240 x 240. The ESP32-C3 offers cost advantages and industry-leading low power consumption, making it an ideal choice for building SPI interface screen solutions such as knob screens and small-sized display found in home appliances like washing machines, body fat scales, electric toothbrushes, and more.