March 2018 Summaries

PubNub plays a crucial role in the Internet of Things (IoT) ecosystem by providing infrastructure and APIs for securely monitoring, provisioning, and streaming data between connected devices, while emphasizing security and GDPR compliance. Developers can initialize PubNub securely using TLS and a cipher key, with the option to use the Access Manager to enforce secure access across channels. The service facilitates communication through unique channels for each device and supports PubNub Channel Groups for managing subscriptions. PubNub's Storage and Playback, or History API, allows for the storage and retrieval of published messages, offering flexibility in message persistence. For enhanced auditing capabilities, Functions and Gateways enable routing messages to custom servers, with secure API calls supported by the XHR module and Functions Vault, which manages secret keys without storing or modifying them.

Since its introduction in 2012, the Raspberry Pi family has expanded into various models, each offering different capabilities and price points, catering to diverse needs from educational purposes to industrial applications. The Raspberry Pi 3, with its powerful quad-core processor and comprehensive port selection, is ideal for processor-heavy tasks and functions as a cost-effective alternative to modern notebook computers. Meanwhile, the Raspberry Pi Zero series offers a minimalist approach with a smaller form factor and lower cost, appealing for projects where space and budget are constraints, despite potential trade-offs in connectivity and expandability. The older Raspberry Pi models and the A+ variant remain available but are less favored unless specific older specifications are required. The Compute Module, designed for industrial applications, provides flexibility with its integration into a DDR2 SODIMM connector and access to multiple GPIO pins, making it suitable for scalable designs. Despite the variety, all Raspberry Pi models maintain the original mission of facilitating computer science education at an affordable price, emphasizing their widespread adaptability and success.

PubNub is transitioning from a device-based pricing model to a transaction-based pricing model to better align with customer needs and usage patterns. The new model charges customers based on the specific API transactions they use, categorized as Replicated, Edge, or Free Transactions, rather than the number of connected devices, which often resulted in unpredictable costs and suboptimal user experiences. This change follows extensive analysis of customer usage and feedback, aiming to make the platform more cost-effective and scalable without penalizing customers for spikes in device connections. Alongside the new pricing, PubNub will continue to offer architectural assistance and discounts for prepaid transactions, and customers will be notified of the change and its timing over the coming months, with support available to help them transition smoothly.