
MN52H (nRF52840) Bluetooth Module Bi-directional Communication (MASTER/CENTRAL TO SLAVE/PERIPHERAL) Transmission Range Test
This report aims to thoroughly validate the maximum effective bi-directional communication range (MASTER/CENTRAL TO SLAVE/PERIPHERAL) of the Arad Technology MN52H BLE module in an open field environment, and to compare the influence of different antenna types (CHIP, PCB, u.FL) on transmission performance.

Zigbee Communication Protocol: The Lightweight Pioneer of IoT
Zigbee was specifically designed to fill the gap left by Wi-Fi and Bluetooth in large-scale, low-power wireless sensor networks, making it an ideal choice for smart homes, industrial automation, and more.

Simple and Secure: An In-depth Analysis of the Matter Protocol's Security
We are very grateful to SEALSQ for providing us with this technical article on the Matter security mechanism. This article provides a clear and comprehensive introduction to the Matter protocol, detailing its operation and rigorous security measures.

From the data, a truth emerges: The MN54L-C15 Chip Antenna's communication distance increases by 22% when oriented correctly! Arad MN54L (Nordic nRF54L15 module) Transmission Range Takes a Leap Forward
This article shares the results of our open-field communication range test for the MN54L BLE module. The objective was to verify the difference in effective communication distance when the module is rotated by 90 degrees compared to its original orientation. The test compared the transmission performance of different antenna types (Chip and PCB) in various orientations. We used an iPhone 7 as the receiving device and conducted the tests in an open and unobstructed outdoor environment to simulate real-world application scenarios.

A Generational Leap in Low-Power IoT: A Comprehensive Comparison of Nordic's nRF54L and nRF52 Series in Power and Performance
For a long time, Nordic Semiconductor's nRF52 series has been one of the most popular Bluetooth Low Energy (BLE) solutions on the market, known for its excellent balance. However, as application scenarios become increasingly complex, the demand for high performance and ultra-low power has grown. In response, Nordic has introduced the next-generation nRF54L series, heralding a generational leap in technology. This article will delve into a detailed comparison of the nRF54L and nRF52 series, analyzing the revolutionary advancements of the new chip from processing power and energy efficiency to overall design philosophy, and assessing how it is poised to redefine the design standards for future low-power IoT.

Bluetooth Antenna Showdown! Chip vs. PCB vs. u.FL: Which MN54L Module Reigns Supreme in Transmit Distance?
MN54L BLE Module (Nordic nRF54L15) Range Test

Bluetooth's Secret Weapon: Channel Sounding vs. AoA/AoD – Which Tech Reigns Supreme in Location Accuracy?
Bluetooth Channel Sounding (CS) and Bluetooth Angle of Arrival (AoA) / Angle of Departure (AoD) are both advanced technologies aimed at improving Bluetooth's ranging and positioning accuracy. However, they differ significantly in their underlying principles, applications, and advantages.

Unveiling Bluetooth Low Energy (BLE) Data Transmission Principles: The Core of Lightweight IoT Communication
Unlike classic Bluetooth, which was designed for continuous, high-throughput data transfer, BLE's core philosophy centers on achieving extreme energy efficiency. This allows devices to communicate with minimal power consumption when only small amounts of data need to be exchanged, leading to battery lives extending for months or even years.

The Future of Edge AI and TinyML: Nordic's Acquisition and Its Market Impact
Edge AI and Tiny Machine Learning (TinyML) aim to execute AI computations and data processing directly on devices near the data source, rather than relying on remote cloud servers. This approach offers lower latency, enhanced privacy, improved bandwidth efficiency, and greater reliability.