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1	Communications solution for refugee settlement : Investigation of nRF24L01+ modules for use in a communications network Engquist, Martin, Bethdavid, Simon January 2018 (has links) The main purpose of this thesis is to test a communications solution for the second to largest refugee settlement in the world, Bidi Bidi. A solution where it is possible to inform the refugees with necessary information, for example that the water at a specific location is currently contaminated or that food is provided at another location. The idea is to use nRF24L01+ modules which operate in the 2.4 GHz frequency band and send information through various ways. This includes turning LEDs' on and off, sending text Strings and streaming audio. The results showed that the modules are too unreliable for a refugee settlement. They also showed that it is not possible to send other types' of data while streaming audio, but there could be workarounds. It is clear that more knowledge and further investigations are needed. communications solution refugee settlement nrf24l01+ nrf24l01 2.4 ghz frequency transceiver module arduino microcontroller bidi bidi uganda south sudan uppsala university radio Communication Systems Kommunikationssystem