GPIO-232 Multifunction Expansion Board with LED Nixie Tube with 485 232 UART Keys for Raspberry Pi
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Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
Features:
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1.The RS485 module
2.The RS232 module(green DB9)
3.EEPROM (24 c16)
4.Three leds
5.Three buttons
6.A buzzer
7.4 in 1 digital tube
8.The rest of the IO mouth raises
9.TF card module (SPI)
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Package Included:??/span>??br>
??br>1 x GPIO Extension Board
