What services does TechNexusGen provide?

TechNexusGen provides AI product development, AI agents, full-stack software development, NFC / RFID / Bluetooth hardware and chip-level design, AutoCAD / Autodesk plugin development, industrial workplace safety & IoT automation, and resource hiring of AI, Python, React, full-stack and embedded engineers.

Where is TechNexusGen based?

TechNexusGen is headquartered in Bangalore, Karnataka, India, and serves clients across India, the United States, the United Kingdom, UAE, Singapore and Australia.

Can TechNexusGen build custom NFC, RFID or Bluetooth hardware?

Yes. Our in-house electronics team designs PCBs, RF antennas and embedded firmware for NFC, UHF RFID, BLE 5.4 and LoRa-based products, including FCC / CE / BIS / BQB certification support.

Can I hire AI or Python engineers from TechNexusGen?

Yes. We place pre-vetted AI, Python, React, full-stack and embedded engineers with companies worldwide on hourly, monthly or full-time engagement models. Typical placement time is 7–14 days.

Do you build AutoCAD or Revit plugins?

Yes. We develop custom plugins for AutoCAD (.NET / ObjectARX), Revit, Fusion 360, Inventor and Autodesk Forge that automate 3D modifications, parametric design and BIM workflows using AI.

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Bluetooth June 12, 2025 11 min read

Bluetooth 5.4 Deep Dive: Auracast, PAwR & What It Means For Product Teams

A practical, engineering-led breakdown of Bluetooth 5.4 features—Auracast broadcast audio, Periodic Advertising with Responses, and how to plan your next BLE product around them.

Bluetooth 5.4, ratified in early 2023 and shipping in mainstream silicon since 2024, is the most consequential update to BLE since 5.0. Two features in particular—Auracast broadcast audio and Periodic Advertising with Responses (PAwR)—unlock entirely new product categories. This article unpacks them from a product and engineering perspective.

What is new in Bluetooth 5.4?

Periodic Advertising with Responses (PAwR) for bidirectional, low-power topologies
Encrypted Advertising Data (EAD) for privacy-preserving beacons
Improved support for Auracast broadcast audio at scale
Subrating for connection power optimisation

Auracast: public audio without pairing

Auracast lets a single transmitter (a TV at the gym, a PA system at the airport, a museum guide stand) broadcast audio to an unlimited number of compatible receivers—earbuds, hearing aids, public earbuds. Users tap or scan to join the broadcast. No pairing, no app required. The killer use cases include silent gyms, multi-language tour guides, accessibility for hearing-impaired travellers, and bar/restaurant TVs.

PAwR: bidirectional fleets at industrial scale

Electronic Shelf Labels (ESL) in supermarkets, smart parking sensors, large industrial fleets of BLE devices have historically been one-way broadcasters. PAwR adds a synchronised response window after each periodic advert, letting one gateway interact with thousands of devices using a fraction of the power and airtime of classic connections.

How TechNexusGen designs for BT 5.4 today

Our hardware team has shipped BT 5.4 products on Nordic nRF54L15, Silicon Labs EFR32BG24, and TI CC2340 silicon. We focus on co-designing the RF front end, antenna, and firmware power profile from day one. Expect 25–40% longer battery life on coin cells when migrating from BT 5.0 to 5.4, with the same form factor.

Should you wait for Bluetooth 6.0?

Bluetooth 6.0 brings channel sounding for accurate ranging, but mainstream silicon and certification are still 12–18 months out for most categories. For 99% of teams, BT 5.4 is the right target through 2026.

Bluetooth 5.4 BLE Auracast PAwR IoT