CID vs. PSM in BLE: Key Differences & Functions Explained
Confused by L2CAP routing in Bluetooth Low Energy? Understand the exact differences and functions of Channel Identifiers (CID) and Protocol Multiplexers (PSM/SPSM).
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Showing 1-25 of 68 articles in this archive.
What is a Channel Identifier (CID) in BLE? | CID Values Table
Learn what Channel Identifiers (CID) do in Bluetooth Low Energy (BLE). Explore the core functions of L2CAP CIDs and view the complete LE-U CID allocation table.
Bluetooth 6.3: New Features & Key Improvements
Discover Bluetooth 6.3 features, improvements and key changes. Learn what is new, why it matters, and how the latest Bluetooth specification evolves.
BLE Service vs Characteristic vs Descriptor: Explained
Learn the differences between BLE services, characteristics, and descriptors, including their structure, roles, relationships, and examples in GATT.
Bluetooth Ranging: Phase Based vs RTT Compared
Compare phase-based and RTT Bluetooth ranging methods, including how they work, accuracy, limitations, and use cases for distance measurement.
BLE Pairing vs Bonding: Key Differences Explained
Learn the difference between BLE pairing and bonding, including key exchange, security, stored credentials, reconnection, and when each process occurs.
Bluetooth Notifications vs Indications: Key Differences
Compare Bluetooth notifications and indications in BLE GATT, including acknowledgments, reliability, flow, performance, and when to use each.
Bluetooth LE 1M vs 2M vs Coded PHY: Key Differences
Compare Bluetooth LE 1M, LE 2M, and LE Coded PHYs, including data rate, range, coding, power considerations, and common BLE use cases.
Bluetooth IRK vs LTK: Differences & Uses Explained
Understand IRK and LTK in Bluetooth, including their roles in privacy, identity resolution, encryption, pairing, bonding, and secure BLE connections.
Bluetooth HOGP: HID over GATT Profile Explained
Learn how Bluetooth HOGP works, including HID over GATT architecture, roles, services, characteristics, and how BLE devices support keyboards and mice.
Bluetooth GATT vs ATT vs GAP: Differences Explained
Learn the differences between Bluetooth GATT, ATT, and GAP, including their roles, relationships, data exchange, and use in Bluetooth Low Energy (BLE).
Bluetooth Error Codes: Meanings, Causes & Fixes
Decode Bluetooth error codes, understand their causes and discover practical fixes to resolve common Bluetooth connection and communication problems.
Bluetooth Direction Finding: AoA vs AoD Explained
Compare Bluetooth Direction Finding using Angle of Arrival (AoA) and Angle of Departure (AoD), including how they work, differences and use cases.
Bluetooth Channel Sounding vs RSSI: Which Is Better?
Compare Bluetooth Channel Sounding and RSSI for distance measurement, including accuracy, principles, limitations, and practical ranging use cases.
BLE Central vs Peripheral: Key Differences Explained
Understand Bluetooth LE Central vs Peripheral roles, including how they connect, communicate, discover services, and interact in common BLE applications.
BLE ATT MTU: Size, Limits & Exchange Explained
Learn what BLE ATT MTU means, how the MTU is calculated, the default and maximum values, packet limits, and how MTU exchange affects data transfer.
7 BLE Advertising Event Types
Learn 7 Bluetooth Low Energy (BLE) advertising event types and their functions.
A2DP vs aptX: Understanding the Key Differences
Clarifying the difference between A2DP and aptX: A2DP is a Bluetooth profile for audio streaming, while aptX is an audio codec enhancing audio quality within A2DP.
Advantages of Web Bluetooth Technology : web API in BLE
Learn Web Bluetooth technology and explore benefits or advantages of web bluetooth.
ANT vs BLE: Key Differences Explained
A comparison of ANT and BLE technologies, highlighting their similarities and key differences in range, power consumption, topology, and applications.
BLE : frequency, range, data rate, power consumption
Explore BLE frequency, range, data rate and power consumption as defined in Bluetooth Low Energy (BLE) specifications.
BLE Advertising and Data Channels Explained
Learn about BLE advertising and data channels, their frequency values, and how they facilitate communication between Bluetooth Low Energy devices.
BLE Advertising and Data Packet Formats
Learn about Bluetooth Low Energy (BLE) advertising and data packet formats according to BLE specifications v4.2 and v5.1, including preamble, access address, PDU, and CRC.
BLE Audio vs. USB Audio: A Detailed Comparison
Explore the differences between Bluetooth Low Energy (BLE) audio and USB audio. Understand their features, pros, and cons to choose the best option.
BLE Bonding benefits and key differences with pairing
Explore BLE Bonding usage, its benefits and differences with pairing as per Bluetooth Low Energy standard specification.
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