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TX: Send UART to the XBee. It will handle the RF communication for us.
RX: Receive UART from the XBee.
To configure the radio channel, scanning periods, XBee ID, master/slave configurations use XCTU
https://www.digi.com/products/embedded-systems/digi-xbee/digi-xbee-tools/xctu
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Things Other Teams Do
UBC: Runs a bare-metal application that runs off ISRs. Warned us about packet linkage occurring, where adjacent packets have no distinction on the receiver's side. Seems to be a transceiver issue and is likely not a FW issue. However, we can include software checks to prevent this.