Answer
You may be experiencing a timeout exception because the module is not responding to a command. Please be aware that you must use flow control or CTS and RTS need to be connected together. Additionally, nShutdown needs to be driven high.
You may be experiencing a timeout exception because the module is not responding to a command. Please be aware that you must use flow control or CTS and RTS need to be connected together. Additionally, nShutdown needs to be driven high.