Design and Realization of Node MCU Module Based on NBIoT for General IoT Purpose At present, the NBIoT module has begun to be traded as one of the IoT devices. However, NBIoT modules that are sold in the market are standalone modules or shields that require Arduino boards, so that in use they require wiring which can cause complicated and irregular, even wiring errors can occur. Therefore the purpose of this research is to design the NBIoT module which has been integrated with a microcontroller unit (MCU), so that it is as practical as the NodeMCU module. The prototype design of the NBIoT module uses the capstone design method, including PCB design and embedded systems also needed for implementing low power devices, then a specification test is performed with the result of power consumption obtained that with a 10,000mAh battery it can last for 5 days, with a cycle the work of 0.0575%, and the spectrum profile where the magnitude of the transmission power with an average of xe2x88x9215,804dBm, bandwidth with an average of 103.07 kHz at a measured frequency of 905.1 MHz.

A NBIoT Passthrough Module for Big Data In the era of big data, the Internet of Things technology, as an expansion of Internet application, provides massive data foundation for big data. Aiming at big data, a design of a low power passthrough module based on NBIoT(Narrow Band Internet of Things)was completed for the Narrow Band Internet of Things communication transmission system and lowpower battery power supply scenario in the Internet of Things domain. Experimental results verify the characteristics of ultralow power consumption of the passthrough module and realize twoway transparent transmission of data between the serial port equipment and the network server. The research results can be applied to various Internet of things scenarios under big data.