GPIO Serial Port Expansion Board GPIO UART Shield For Raspberry Pi 2B/B+
Expansion board size: 65mm * 56.5mm, the standard raspberry pi HAT extension plate size
new power indicator
new infrared receiver function
GPIO extended function:
16 independently with power and ground GPIO (3.3V level), and provide a corresponding relationship table, at a glance 2 independent SPI extended interface with 1 I2C extended interface 1 RS232 standard serial port, can be directly connected to the PC etc.