1、ACCURATE TIMING: The chip timer module can produce more accurate timing, especially for the LED industry2、OUTPUT CLOCK: P3 is RSTOUT LOW, output low level after power on reset, low level or high level can be set by the software, the pin can be used as the reset circuit of 16 bit or 32 bit MCU, P4 can output system clock, can be used as the clock circuit of 16 bit or 32 bit MCU3、SECURITY ENCRYPTION: The chip also has a strong encryption function, can replace the encryption chip, STC15F104W has no serial port and relay broadcast mode. Can simulate I2C, serial port and SPI, measure external voltage through IO port, and realize AD function4、CONFIGURABLE I AND O: The input level of P1 directly outputs P0, which can be set in the download software, similar to the relay broadcast mode of serial port 1 of the 15 series5、RELIABLE PCB: Adopt excellent PCB materials, with reliability and miniaturization, good maintenance and interchangeability Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.