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. 2024 Oct 31;24(21):7046. doi: 10.3390/s24217046

Figure 9.

Figure 9

Communication interfaces linking the Unreal Engine VR scenario of a stationary computer with the head-mounted device (HMD) integrated with Raspberry Pi and odor micropumps. The trigger signals from the VR scenario are transmitted wirelessly over WiFi to a Raspberry Pi. The Raspberry Pi subsequently transfers this signal by wire to the micropump driver using the UART protocol.