Board Resources: LED can be connected to any I / O; Crystal conversion interface, can be connected to any pin to meet all IC. A button (do reset key). All I / O external expansion; Auxiliary power expansion port; The line of SIP6 download / debug interface; DC power connector. Single-line 18B20 temperature detection interface; Infrared receiver interface; COM port lead (PIC16F877A)-based; I2C interface based PIC16F877A.
