Description
1. It can be also used as a development board, if you starting from the sample can also recommend the development board to you.
2. It can use communication and serial communication (dongle) similar to DTU hardware, you need to do their own software.
3. USB 4G Dongle can also support 4G Internet access devices. It is a kind of Internet access device that can insert SIM card(with the card and the antenna).
