9.4.1 ETH w5500
9.4.2 IO 74xx573
9.4.3 IO 74xx595
9.4.4 IO MCP23017
9.4.5 IO MCP23S17
9.4.6 IO MM74C922
9.4.7 IO PCF8574
9.4.8 IO UART
9.4.9 Jumper Wires
9.4.10 Logic Block
9.4.11 MEM 24CXXX
9.4.12 RTC ds1307
9.4.13 RTC pfc8563
9.4.14 SD Card
9.4.15 Temperature System