Bidding Farewell to the "Metal Shielding Effect": MN54L's Penetration Power Ensures IIoT Device Connection Stability in Containers and Cabinets
By installing the Device Under Test (DUT) inside the furthest end of a large metal shipping container and conducting connection tests within a parallel-container setting, we simulated severe conditions common in Industrial IoT (IIoT) applications where signals must penetrate metal structures, such as equipment cabinets, walls, or buildings.
Next-Generation Wireless Performance: RF Validation and Deep Analysis of Long-Range Bidirectional Bluetooth Communication on the Arad MN54L Module (Powered by Nordic nRF54L IC)
The design goal for this MN54L test is to directly inherit the high-standard validation methodology established by the MN52H testing. This ensures the data accurately reflects the most robust performance achievable by the MN54L module in complex and demanding applications, such as Bluetooth Mesh, Thread, and Matter. For consistency with previous tests, we utilize the MN52H-U40 as the MASTER/CENTRAL device, communicating bidirectionally with various antenna configurations of the MN54L modules. Testing was conducted in an open environment, specifically a beach location, to minimize interference from geographical obstacles and surrounding radio signals, thereby providing the most accurate and valuable reference data on the module’s ultimate wireless transmission performance.
Arad MN52H 250K mold Bluetooth Module Bi-directional Communication (MASTER/CENTRAL TO SLAVE/PERIPHERAL) Transmission Range Test
This report presents the latest findings from the Arad Connectivity MN52H BLE (Bluetooth Low Energy) module's transmission range test series. Following the successful verification of the maximum communication distances for the 125K (Long Range) and 1M modes in previous phases, the current testing focuses specifically on validating the bidirectional transmission performance of the 250K PHY mode in an open-field environment.
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
