Summary
In the video I discussed current technologies available for IoT applications leveraging existing cellular mobile networks. These include LTE-M and NB-IoT, which are low power wide area network (LPWAN) technologies. These technologies are appealing for IoT devices due to their extended range, low power consumption, and reduced cost. LTE-M operates within the LTE spectrum, offering better indoor and underground coverage, high power efficiency, and data rates of up to 1 Mbps. NB-IoT, on the other hand, provides slightly better range but lower data rates, making it suitable for stationary devices with minimal data transmission needs.
I also explained the different types of SIM cards used in IoT devices, including traditional plastic SIMs, embedded SIMs (eSIMs), and the newer embedded universal integrated circuit cards (eUICC). eUICC is particularly advantageous for global deployments as it allows devices to switch networks over the air without the need for physical SIM changes. This technology, however, requires a more complex infrastructure and certification process. I highlighted the significance of proper network provisioning and the role of multi-IMSI and eUICC in simplifying global IoT deployments by reducing roaming costs and enhancing connectivity management.
Furthermore, I touched on the development and certification process for IoT devices, emphasizing the need for FCC compliance and carrier-specific certifications, particularly for Verizon's network. I shared my personal experiences with various modems, particularly those from Telit, and offered insights into using Nerves for network configuration. For those new to cellular IoT development, I recommended starting with USB-to-PCIE dongles and modems from Telit, as they offer a balance of cost-effectiveness and ease of use.
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