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. 2020 Oct 24;20(21):6056. doi: 10.3390/s20216056
RF Radio Frequency
MCU Micro Controller Unit
FSK Frequency Shift Keying
SHA1 Secure Hash Algorithm 1
GPIO Gneral Purpose Input Output
CRC Cyclic Redundancy Check
DMA Direct Memory Acess
UART Universal Asynchronous Receiver Transmitter
ARQ Automatic Repeat reQuest