Projeto de driver para rádio transmissor LoraTM em Sistema Embarcado Texas Instruments Tiva C EK-TM4C123GXL.

Abstract

This traineeship report covers the activities carried out during the compliance with the mandatory supervised internship required by the degree course in Electrical Engineering offered by the Federal University of Campina Grande. The ARM Cortex M4 architecture and the development platform TM4C123GXL from texas instruments. The transceiver module used was RFRF95 from HopeRF. The activities consist in the elaboration of a driver that controls at the physical level the tranceiver devices for the LoRa technology. It was perform performance experiments considering round trip time, jitter, packet loss rate for different modulation schemes at various levels of received signal strength. The results show that the driver works for different modulation, but does not achieve the expected performance with respect to compared to that described by the manufacturer’s own data sheets. More experiments should be made and new strategies for sending and receiving information should be tested in order to assess the driver and the hardware itself in order to build a data sheet of performance, making it possible to evaluate the employability of the technology.