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Documentation & downloads.

Every public FLSEMI document, in one place.

EdgeRouter

Hardware specificationBFi53ER0 / BFi53ER0S · v3.2 · 11 pages · PDF
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Quick Start — Battery-Free Bluetooth GatewayBFi53ER0-BF firmware 0.57.82 · v1.8 · 9 pages · PDF
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Example code — Battery-Free Bluetooth GatewayUDP receive, TCP feed, first Modbus TCP read · Python 3, standard library only · v1.1 · ZIP
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User Manual — Battery-Free Bluetooth GatewayBFi53ER0-BF · installation, settings, Modbus, RS-485, terminals, rules and alerts, updates · English · v3.6 · 58 pages · PDF
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System Integration Guide — Battery-Free Bluetooth GatewayJSON payload decoding, complete Modbus register map and command reference · leave your company details
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Wireless modules

BFi53MLG product specificationNordic Semiconductor nRF5340 wireless MCU module with RF front end, 2 MB QSPI flash and i.PEX antenna connector · 12 × 16 × 2.0 mm, 108-pad M.2 LGA (Type 1216 outline), −40 to +105 °C, made in Taiwan · FCC, ISED, NCC, Japan radio, CE (RED), AU/NZ RCM and VCCI approvals, Bluetooth listing · pins, electrical, mechanical and PCB stack-up, certificate and test-report data, OEM labelling · a BANFi Semiconductor product · v2.0 · 29 pages · PDF
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Lighting

BFi53CVD product specificationConstant-voltage dimmer · v1.4 · PDF
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BFi53CCD product specificationConstant-current dimmer · v1.4 · PDF
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BFi5EWSSB / EWSDB product specificationBattery-free wireless switch · v1.5 · 8 pages · PDF
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DECT NR+

BFi91NR7DLCVG product briefDECT NR+ protocol stack on Nordic Semiconductor nRF9151 · 2 pages · PDF
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DECT NR+ evaluation kits — capability statementThingy:91 X, nRF9151 DK, nRF9151 SMA DK and nRF9131 EK kits · R08 · 2 pages · PDF
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Getting Started & Integration Overview — Thingy:91 X kitUSB and Bluetooth LE set-up, Wi-Fi and cloud, mesh, keys, sensors, updates · public edition 1.2 · 10 pages · PDF
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DECT NR+ Embedded SDK — overviewYour application on the nRF9151: roles, boards and status, development cycle, API at a glance · public edition 1.6 · 2 pages · PDF
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DECT NR+ Embedded C API — overviewProgramming model, typical flow, the API by area, sample applications, boards · public edition 1.3 · 2 pages · PDF
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DECT NR+ Host Interface (HIF) — overviewUART and SPI link, frames, register map in outline, typical host session · public edition 1.1 · 2 pages · PDF
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DECT NR+ Python samples — messages, group voice and callsText messages, group push-to-talk and one-to-one calls through a gateway over Bluetooth LE, plus USB-serial examples for development boards, encrypted in the app · Python 3.9+ · tested on macOS only; Windows and Linux not yet tested · FLSEMI 5-Clause License · v1.0.0 · ZIP
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DECT NR+ Python samples — tutorialHardware, pairing, every example step by step, frame formats and porting notes for phone apps · v1.0.0 · 7 pages · PDF
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DECT NR+ Embedded SDK (C API) — library, samples & developer guidePrebuilt library, five sample applications and developer guide · your application on the nRF9151 · leave your company details · supported only on nRF91 devices and products shipped by FLSEMI, or under licence from FLSEMI
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Full setup & integration guide, command referenceThingy:91 X kit and nRF9151 DK kit · leave your company details
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Need something else? Technical support · Password recovery · Warranty & returns · Engineering services

DECT NR+ developer documents

Get the Embedded SDK, the C API guide and the full documentation.

The prebuilt DECT NR+ library, five sample applications (mesh sink, relay and leaf; star hub and member), the C API reference and the developer guide — your application runs on the nRF9151 itself. Also the host-interface (HIF) specification, the full setup and integration guide for the kits, and the full stack specification. Leave your company details, tick what you need and tell us about your project, and we send it. The SDK is supported only on nRF91 devices and related products shipped by FLSEMI, or shipped under licence from FLSEMI.

System Integration Guide

Request the System Integration Guide.

The guide covers the BFi53ER0-BF’s JSON telegram decoding, the complete Modbus register map and command reference, with worked examples. Tell us about your company and what you are integrating, and we will be in touch.

Password recovery

Locked out of a gateway?

Try the simple way first: at the gateway, press the reset button beside the microSD card three times and the password returns to the default — you do not need us for that. If you cannot reach the gateway, click Recover with FLSEMI or BANFi on its sign-in page and enter the challenge it shows below. Once we have confirmed that the gateway is yours, we email a recovery code to the address you give.

For firmware 0.57.101 and later.