PtMP (Point-to-Multipoint): A single access point (AP) communicates with multiple client devices.
This means the AP needs to manage how the available airtime is shared among those clients.
Airtime Fairness: Mechanisms are needed to ensure that:
Each client gets a fair chance to communicate
High-priority traffic isn't starved by low-priority traffic PtP (Point-to-Point): A dedicated link only has two devices, eliminating the need for complex airtime management.
Considerations in Both: While interference, SINR, and frequency selection are important in both PtMP and PtP systems, the need for airtime management is unique to the multipoint scenario.

Wireless Transceiver: A transceiver is a combination of a transmitter and receiver used for wireless communication.
Radio: The radio is the primary component responsible for:
Modulation: Encoding data onto a carrier wave.
Demodulation: Extracting data from a received signal.
Transmission/Reception: Handling the actual sending and receiving of modulated signals over the air.

Legacy Support: The primary reason to continue using older wireless technologies is the need to connect with devices that don't support newer standards (e.g., old sensors or equipment).

Browser Ubiquity: JavaScript has a native runtime environment within almost every modern web browser, making it the 'built-in' scripting language for web-based interfaces.
Node-RED: This IoT flow-based programming tool specifically uses JavaScript for its logic and automation functions.

JSON Fundamentals: JSON (JavaScript Object Notation) is a text-based format for representing data in a structured, yet flexible way. Its key features are:
Key-Value Pairs: Information is organized as "key":"value" pairs, making it human-readable.
Plaintext: JSON is not encrypted, ensuring easy parsing across different systems.