Communication in black spot using lora technology

Abstract

The main theme of this paper is to develop an embedded based system to send messages from black spot area using LORA and GSM. Black spot is nothing but an area where we could not find any network signals. Even in cities also sometimes we may not have signals inside the room. Through such areas sending or calling is not possible. This black spot is used for security purposes. Military regiments are signal jammed areas where the communication is impossible, so the people there use this kind of communication. This project is also used in undercover operations where the communication takes place in this process. Here the project built is useful to create signals for sending messages in the black spot through the two different communication modules i.e., LORA and GSM. In the project work different frequencies for individual modules are likely to be used such as GSM (1800MHz) and LORA (2.4GHz). By using these two wireless communication devices we create communication link in between LORA and GSM by which a message will be sent in the form of SMS through the Bluetooth module.