Abstract
In this study, a stand-alone signal strength meter is developed for diagnosing the quality of GSM signals. The meter consists of a sim808 module, memory card shield, microcontroller, and Liquid Crystal Display unit, and 12 V, 60000mAH lithium battery. A C-programming with Arduino platform is adapted to communicate with the sim808 board, memory card shield, LCD, and microcontroller (Arduino mega 2560). A sim808 library was used to extract the Received Signal Strength Indicator (RSSI), the coordinator, the number of satellites in view, and the satellite is used in computing the basic position parameters. The signal strength obtained ranges from -115 dBm to -51 dBm when compared with the Samsung Galaxy A10s phone signal strength and developed device show a good correlation (0.99) with the standard device.
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