The main mechanisms for communicating between devices around the house in JET are via serial communication and via Ethernet (LAN or WLAN) - often in the form of USB devices acting as virtual serial interfaces. For simple radio modules used for a Wireless Sensor Network, we can then use a USB or WiFi “bridge”.
Other (less common) options are: I2C and SPI hardware interfaces, and direct I/O via either digital or analog “pins”.
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