NXP Semiconductors OM2385/SF001

Overview

OM2385/SF001 from NXP Semiconductors is an assembled and tested development kit built around the OL2385 single-chip UHF RF transceiver, pre-mounted on a firmware-loaded FRDM-KL43Z board. It delivers SIGFOX network connectivity for low-power IoT applications, featuring integrated antenna interface, Arduino-compatible headers, UART/SPI/MDI/GPIO support, and factory-loaded microcode for immediate evaluation.

For engineers reviewing the OM2385/SF001 datasheet, OM2385/SF001 pinout, OM2385/SF001 application, or OM2385/SF001 equivalent, this page provides verified hardware configuration details, regional SIGFOX mode setup (RCZ1–4), jumper voltage constraints (3.3 V only), LED status behavior, and terminal emulator serial parameters (9600 baud, 8N1).

Technical Context

The OM2385/SF001 integrates three physical boards: the OL2385 Reference Design Board (containing the OL2385 transceiver in VQFN48), the OL2385 Shield Board (with SMA antenna connector, Arduino™ headers, jumpers JP1/JP2, and switches SW1–SW3), and the FRDM-KL43Z host MCU board (Kinetis KL43Z, ARM Cortex-M0+, OpenSDA debug interface). Communication between OL2385 and KL43Z occurs via SPI (D10–D13), UART (D00/D01/D14/D15), and GPIO (D03–D06).

It operates exclusively at 3.3 V (jumpers fixed to 1–2 position), supports SIGFOX P1 certification, and implements RCZ1–4 regional configurations through firmware commands. The board uses a uFL-connector PCB antenna and requires device registration with backend.sigfox.com using the unique 8-digit Device ID and 16-digit PAC printed on the shield board.

Key Specifications

Availability

OM2385/SF001 is available at Aetrix Electronics and suitable for SIGFOX-based IoT prototyping, LPWAN sensor node development, and regional wireless communication validation requiring stable component supply and full-stack evaluation readiness.

Supply support for OM2385/SF001 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The OM2385/SF001 belongs to NXP's Freedom development platform family, designed specifically to accelerate SIGFOX and sub-GHz wireless application development using certified RF silicon and standardized ARM-based host controllers.

FAQ

What is the OM2385/SF001 used for?

The OM2385/SF001 is a fully assembled development kit for evaluating SIGFOX network connectivity using the OL2385 RF transceiver. It enables rapid prototyping of low-power, wide-area IoT devices - such as environmental sensors or asset trackers - by providing pre-integrated hardware (FRDM-KL43Z + OL2385 reference board), firmware, and antenna interface. OM2385/SF001 eliminates the need for custom PCB design during early-stage SIGFOX validation.

Does the OM2385/SF001 require external power or programming before use?

No. The OM2385/SF001 ships with the FRDM-KL43Z pre-loaded with microcode that manages PC-to-OL2385 communication via OpenSDA. Power is supplied solely via USB (5 V from host PC), regulated internally to 3.3 V - no external power supply or initial programming is needed. OM2385/SF001 is ready to connect and test immediately after driver installation and terminal emulator configuration.

How do I configure the OM2385/SF001 for my region's SIGFOX network?

After connecting OM2385/SF001 to a PC and launching a terminal emulator (9600 baud, 8N1), press the FRDM-KL43Z reset button to display the command menu. Select option 1–4 corresponding to your region (RCZ1–4) to configure frequency band, modulation, and regulatory settings. This step must be repeated each time the board is reconnected via USB. OM2385/SF001 stores no persistent regional configuration without firmware modification.

What are the critical hardware constraints I must observe with the OM2385/SF001?

You must keep both JP1 and JP2 jumpers in the 1–2 position to enforce 3.3 V operation - moving either to 2–3 (5 V) will damage the OL2385 transceiver. The uFL antenna connector must be mated with the included PCB antenna before transmission. Also, SW1–SW3 are uncommitted GPIOs; their default state is open, and they require external pull-up/down if used as inputs. OM2385/SF001 does not support 5 V logic levels anywhere on the shield or reference board.

Where can I find schematics, layout files, and the BOM for the OM2385/SF001?

Schematics, PCB layout files, and the complete bill of materials (BOM) for the OM2385/SF001 are hosted in the Jump Start section of the official NXP tool summary page at http://www.nxp.com/OM2385. These documents are provided as part of the KTOM2385SF001UG user guide bundle and include detailed netlists, component placement diagrams, and layer stackup information for design reuse and compliance verification. OM2385/SF001 documentation is not distributed separately from this source.