FLSEMI®
ER0 / ER0S EdgeBox · Florida, USA

Self-healing connectivity
that can't fail.

The ER0S EdgeBox unifies Bluetooth Mesh lighting, Modbus field devices and 2 km DECT NR+ sensor backhaul into a single stream to your BMS or cloud — maintenance-free, and built where connectivity cannot fail.

Explore the EdgeBox → Talk to an engineer
> 2 kmDECT NR+ backhaul
Modbus TCPBMS & cloud uplink
PoEsingle-cable power
FLSEMI BFi53ER0S IoT EdgeBox gateway — metal heat-sink enclosure with dual antennas, Ethernet and terminal I/O
ER0S5G DECT NR+ EdgeBox
Flagship Platform

The ER0 / ER0S EdgeBox.

An industrial IoT gateway that bridges field-side Bluetooth Mesh / NLC lighting, Modbus RTU devices and 0–10 V / DI-DO I/O to Modbus TCP, BMS or cloud over a single PoE cable. The ER0S variant adds an integrated 5G DECT NR+ radio for long-range sensor backhaul — no SIM, no cellular subscription.

BFi53ER0S
BFi53ER0S IoT EdgeBox gateway
One box · every interface

Wired and wireless, translated at the edge.

A Modbus TCP server and RTU master with full NLC mesh model support, an EnOcean energy-harvesting proxy and remote OTA — housed in a metal heat-sink enclosure rated for −20 ~ +75 °C industrial environments.

  • Ethernet (PoE)10/100M · Modbus TCP → BMS / cloud
  • DECT NR+ ER0S · > 2–3 km sensor backhaul
  • Bluetooth Meshdimmers, switches, NLC lighting
  • RS-485Modbus RTU master → field devices
  • 0–10 V · DI / DO2× analog · 2× DI · 4× DO (24 V / 1 A)
  • microSD · OTAlocal logging · Ethernet & BLE DFU
Variant
BFi53ER0
BFi53ER0S · 5G DECT NR+
Radio
Bluetooth 5.3 LE
Bluetooth 5.3 LE + integrated 5G DECT NR+
TX power / range
+13 dBm · LoS > 100 m
+21 dBm · LoS > 2000 m
Long-range backhaul
—
DECT NR+ Fixed Termination from BFi91XTD (2–3 km)
Stack
Mesh / Modbus
+ built-in BFi91NRIP
Best for
In-building NLC + Modbus edge
Large-site / campus sensor backhaul

Both share 10/100M Ethernet (PoE), RS-485, 2× 0–10 V, 2× DI / 4× DO, microSD, −20 ~ +75 °C operation and NCC / CE / FCC / TELEC / RCM certification.

Core Technology

Three foundations, one platform.

The EdgeBox is built on a wireless stack that combines short-range and long-range connectivity with energy that generates itself — so networks stay reliable without batteries, base stations or SIM cards.

Bluetooth Mesh & NLC

Networked Lighting Control over Bluetooth Mesh — provisioning, scenes, scheduling and energy monitoring from a phone, scaling to 1,000+ nodes.

100 m+ LoS · Bluetooth NLC profile

DECT NR+ (5G)

ETSI DECT-2020 NR standard on license-exempt spectrum — self-healing, decentralized mesh built for up to a million nodes per square kilometre.

2 km LoS · <1 ms latency · no SIM

Self-Power & Harvesting

Battery-free switches and sensors harvest kinetic and ambient energy, proxied straight into the mesh — no wiring, no batteries, zero maintenance.

Battery-free · maintenance-free
Applications

Built for two worlds.

Bluetooth NLC professional lighting — warm pendant and track lighting in a commercial dining space
01 — Professional Lighting

Lighting control, elegantly wireless.

Bluetooth Mesh · NLC

Networked Lighting Control over Bluetooth Mesh — provisioning, dimming, scenes and scheduling from a phone, driven by self-powered switches. One platform from indoor luminaires to city-wide street lighting.

  • Indoor luminaires — tunable white / RGBCW dimming, scenes, occupancy & daylight response
  • Outdoor & street lighting — city-scale scheduling, diagnostics, energy savings
  • Self-powered switches — battery-free, install anywhere, no wiring
DECT NR+ industrial equipment and environmental monitoring
02 — Data Collection

Long-range sensing, no base station.

DECT NR+ · 2 km LoS

License-exempt DECT NR+ backhaul into the ER0S EdgeBox for status and condition monitoring across large sites — long range, self-healing, no SIM and no base station.

  • Industrial — equipment condition & environmental status monitoring
  • Infrastructure — distributed environmental monitoring across sites
The Ecosystem

Everything the EdgeBox connects.

Dimmers, wireless sensor nodes and uncooled thermal cores at the edge — all bridged to Modbus TCP, BMS and cloud by one ER0 / ER0S EdgeBox.

BANFi Bluetooth NLC dimmer
BANFi Semiconductor

Lighting Control

Bluetooth NLC constant-voltage and constant-current dimmers with battery-free wireless switches — the field devices the EdgeBox provisions and controls.

BFi53CVD · BFi53CCD · BFi5EWS switches
Nordic Thingy:91 X wireless sensor node
DECT NR+ Sensor Node

Wireless Sensor Node

A Nordic Thingy:91 X–based field sensor for condition, energy and environmental data — backhauled to the EdgeBox over long-range DECT NR+, with no SIM or cellular subscription.

Nordic Thingy:91 X · DECT NR+ · 2–3 km LoS
CT11-USB uncooled VOx thermal camera core
VOx Thermal Sensor

Uncooled Thermal Cores

The CT11-USB uncooled thermal camera core — 640×512 LWIR, plug-and-play over a single USB connection with UVC video and CDC control.

640×512 · 12 µm · NETD ≤ 30 mK
↓
ER0 / ER0S EdgeBox gateway
The Bridge · ER0 / ER0S

ER0S EdgeBox

One gateway bridges Bluetooth Mesh lighting, Modbus RTU field devices and DECT NR+ sensors to Modbus TCP, BMS or cloud over PoE — carrying multiple radio stacks on board, including FLSEMI's US-developed DECT NR+ MAC. A Thread-over-Ethernet stack also connects Thread / Matter devices to Apple HomeKit and other smart-home ecosystems.

Bluetooth Mesh StackDECT NR+ MAC StackThread over Ethernet
Proven in the Field

Battle-tested deployments.

Early installations across demanding real-world environments — from semiconductor fabs to campus lighting, highways and street infrastructure.

Semiconductor / SMT manufacturing line equipment monitoring
Semiconductor FabsEquipment energy & environmental monitoring · Modbus RTU → Mesh → PoE Modbus TCP · Taoyuan & Kaohsiung, TWN
Highway rest area
Highway Rest AreaEdge sensing & guidance · Yilan, TWN
University campus recessed downlight corridor
University CampusScheduled public-area lighting · NLC Schedule/Time model + network NTP · Taipei, TWN
Hospitality lounge cove and accent lighting
Hospitality LoungeCove & accent lighting · BFi53CVD 200 W LED strip + battery-free switch · Taipei, TWN
Street and road lighting at dusk
Street & Road LightingBluetooth NLC dimming, scheduling & fault reporting · Yilan, TWN
Business hotel guestroom with dimmable lighting
Business HotelGuestroom dimming · BFi53CVD + battery-free two-way self-powered switches, no inter-switch wiring · Chiayi, TWN
The Company

Reliable mesh networking meets semiconductor integration.

FL Semiconductor LLC (dba FLSEMI) integrates resilient Bluetooth Mesh, DECT NR+ and Thread stacks into System-in-Package (SiP) wireless modules — reliable, self-healing connectivity delivered at chip scale, with materials and expertise drawn from the US, Norway and Taiwan.

100 m+Bluetooth range, LoS
2 kmDECT NR+ range, LoS
1Mnodes per km²
4patents (US · TW · CN)
A UCF Business Incubation Program company ↗

Supported by the University of Central Florida's Business Incubation Program in Central Florida.

UEI KRRRZ4V2BGW9
CAGE 11U64
Registered U.S. Small Business ↗
Get in touch

Let's build connectivity that doesn't fail.

Tell us about your smart-building, industrial or lighting deployment — we'll help you scope the right EdgeBox architecture.

Contact us → flsemi.us