For my project, I want to scan 2G, 3G and 4G cellular network (all 3 SIMs) simultaneously and want to display that network coverage information in an LED display or touch display. Additionally I want to use one more SIM to transport the data to storage system.
Possible Option as far as I know: 1) I thought of using 4 Arduino boards and 4 Cellular modules, So that I can interface three SIMs (2G, 3G and 4G) and additional SIM for data transport.
Still I am Lagging: Now I want to know how to interface all these boards together so that in one display, it will display the information. Using bluetooth is not an good option since it will connect only one device.
Please give me some inputs how to proceed further. All your ideas are welcome including which cellular modules to use, micro-controller boards, etc..