Entering the Bluetooth 6.0 Era: A Deep Dive into Arad Connectivity's nRF54LM20 Module (MN54LM-20 Series) Next-Gen Miniature Cost-Effective Long-Range BLE Solution
As the Internet of Things (IoT) applications trend toward greater miniaturization, higher security standards, and more powerful edge computing capabilities, the performance limits of wireless communication modules are constantly being pushed. To help developers get a head start in deploying next-generation smart hardware, Arad Connectivity officially launches the flagship Bluetooth module series—the MN54LM-20 series—equipped with Nordic Semiconductor's brand-new, cost-effective nRF54LM-20A and nRF54LM-20B chips.
Dual Certification Milestone: Arad Connectivity nRF54LM-20 Bluetooth Modules (MN54LM Series) Receive US FCC and Taiwan NCC Certifications
Arad Connectivity Co., Ltd., a leader in high-performance, long-range wireless communication solutions, today officially announced that its MN54LM-20A/B Series Bluetooth Modules (powered by the Nordic Semiconductor nRF54LM-20A/B SoC and comprising variants MN54LM-C, MN54LM-P, MN54LM-U, and MN54LM-S) have successfully obtained both US FCC Certification and Taiwan NCC Type Approval. Arad Connectivity Co., Ltd., a leader in high-performance, long-range wireless communication solutions, today officially announced that its MN54LM-20A Series Bluetooth Modules (powered by the Nordic Semiconductor nRF54LM-20A SoC and comprising variants MN54LM-C, MN54LM-P, MN54LM-U, and MN54LM-S) have successfully obtained both US FCC Certification and Taiwan NCC Type Approval.
MN54L (nRF54L-15) Bluetooth Module Cycling Group Fall Behind Monitoring Test Report (1M & 125K PHY)
With the growing popularity of recreational cycling and group riding activities, "group fall behind” caused by differences in riding speed, traffic light intervals, or corner obstructions—has become increasingly common. To provide cycling teams with real-time, highly reliable safety protection and separation alerts, Arad Connectivity has designed a BLE-based group monitoring mechanism tailored for cycling scenarios.
Arad Connectivity MN54LM-20A (nRF54LM-20A) BLE Module Module-to-Module Full-Axis Test Report (1M & 125K PHY)
Conducted in the open outdoor environment of the Zhuwei seaside, this test aims to thoroughly investigate the actual impact of module miniaturization on effective wireless connection ranges. This evaluation comprehensively assesses the Arad Connectivity MN54LM-20A series BLE modules—featuring built-in CHIP, PCB antennas, and external u.FL antenna versions, excluding the S20A model. Shifting from previous smartphone-to-module setups to a module-to-module bi-directional connection architecture, the testing scope simultaneously incorporates both standard 1M PHY and long-range 125K PHY transmission modes to comprehensively verify the extreme communication performance and multi-axis propagation characteristics in a coastal environment.
Arad Connectivity MN54LM-20A (nRF54L-20A) BLE Bluetooth Module Smartphone Connection Full-Axis Test Report (1M PHY)
Compared to the MN54L-15 series modules (9.3x14.5x2.1mm), the MN54LM-20A modules feature a more compact size (7.5x13x2.0mm), with the MN54LM-S20A module being the smallest at (7.5x10.2x2mm). This test aims to explore "what is the impact of size reduction on the effective connection range of the modules?", thoroughly verify the maximum effective communication range of the Arad Connectivity MN54LM-20A series BLE modules when communicating with an iPhone 7 smartphone under 1M PHY, and evaluate the communication performance across all axes for modules equipped with built-in CHIP, PCB antennas, and external u.FL antenna versions.
Nordic’s Lifetime FOTA: A Strategic Gateway to EU CRA Compliance
As the EU Cyber Resilience Act (CRA) moves toward full enforcement by 2027, the ability to provide security updates throughout an IoT product's lifecycle has evolved from a "nice-to-have" feature into a mandatory requirement for market access.
To simplify the compliance journey, Nordic Semiconductor, in collaboration with device management expert Memfault, has launched the nRF Cloud Lifetime Flat-rate FOTA solution. This service transforms complex, expensive cloud updates into a simple, low-burden package for developers.
Arad Connectivity Showcases MN54L-C15 Module at Embedded World NA 2025 and CES 2026 in Collaboration with Nordic Semiconductor
Arad Connectivity is honored to have been invited by Nordic Semiconductor to participate in two of the most prestigious global technology milestones: Embedded World North America 2025 and the recently concluded CES 2026 (Consumer Electronics Show). During these events, Arad Connectivity showcased its latest MN54L-C15 Bluetooth module. Powered by next-generation communication technology, the module was featured at Nordic’s booth alongside world-class smart applications, capturing the significant attention of developers and industry leaders.
(LE Coded1M PHY) Arad MN54L/MN52H Bluetooth Module Container Signal Penetration Full Axis Test Report
Following the previous validation of the Bluetooth module's signal penetration and connection capabilities in an extreme Radio Frequency (RF) shielding environment, this test is an expansion aimed at completely verifying the full penetration performance of the Arad MN54L and MN52H series Bluetooth modules.
(LE Coded 1M) 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.
