K2/D127-A2 is a dryer control board manufactured by Kraftberg. It is designed for use in residential dryers and washers, including some Samsung and LG models. The board features an 8-bit 8051 microcontroller, which can be programmed to operate a variety of features, including timing and safety features. Additionally, it features a DC Motor controller with a PWM output, an AC heater current sensing limiter, and a step switch driver. The board also has a number of communication protocols, including I2C, UART, SPI and CAN.