Electronica India 2025: Semtech Advancing Innovation in Wireless Communication, Sensing and Protection

Electronica India 2025, held from September 17–19 at the Bangalore International Exhibition Centre (BIEC), was a resounding success.  

Semtech captivated audiences with its LoRa® Wall of Devices and live demonstrations at Hall 3, Booth C05, underscoring the company’s pivotal role in driving innovation within the Internet of Things (IoT) ecosystem. From next-generation connectivity solutions to real-world applications, Semtech’s exhibits highlighted the power of LoRa technology and the growing momentum of LoRa and LoRaWAN® in India. Complementing this, Semtech also showcased its latest HotSwitch® and SurgeSwitch® protection devices, demonstrating leadership in power integrity and reliability solutions.

Advanced Technology Demonstrations of LoRa product offering 

The exhibition featured live technical demonstrations showcasing next-generation LoRa capabilities across diverse application domains.  

LoRa-Enabled Voice Communication Systems 

One of the most engaging demonstrations at the event was LoRa-enabled walkie-talkie, which drew significant attention, with many attendees eager to experience the technology firsthand. Developed through a collaboration between Sicomm and Murata featuring the Murata 2GT module with Semtech LR1121 LoRa Connect™ chip, the solution showcased long range real-time audio transmission over LoRa—a use case that surprised many who had previously associated LoRa only with small data transfers. This demonstration dispelled that perception by proving that LoRa can reliably support voice communication in sub-GHz as well 2.4 GHz Industrial, Scientific, and Medical (ISM) bands. Notably, it provides a cost-effective option for all those cases where traditional walkie-talkies, public announcements, group chats, multi-cast audio streaming for large venues, and other solutions where the conventional radios are short in range. 

Applications:

• Emergency response communications 

• Critical communications in multi-story buildings 

• Backup communication systems where cellular networks are compromised 

• Industrial safety communications 

• Two-wheel point-to-point or cluster communications (group chat) 

• Multi-cast audio streaming or public announcements in large campuses/stadiums  

LoRa enabled Walkie Talkie with Sub-GHz (large) and 2.4 GHz (small) antennas 

Fast Long-Range Communication (FLRC) Image Transfer 

The High-Speed Image Transfer demo showcased the new LoRa Plus™ LR2021 chip, which supports image streaming at up to 2.6 Mbps using FLRC subject to Local ISM band regulations. This demonstrates its ability to provide long-range connectivity for high data-rate applications.  

Applications:

• Security surveillance systems 

• Drone communications and telemetry 

• Remote monitoring applications 

• Industrial inspection systems 

• Border security and perimeter monitoring 

Semtech's FLRC technology demonstration showing real-time high-speed image transfer between two LR2021-powered devices at Electronica India 2025

Precision Ranging Technology 

The point-to-point ranging demonstrated LR2021’s ability to deliver “distance measurements” using Round Trip Time of Flight (RTToF). The demo highlighted how LR2021 achieves accurate point-to-point ranging without relying on existing infrastructure, making it highly suitable for complex or constrained environments. For more information about these features embedded into multiple Semtech LoRa chips, you may also be interested in:   

• LR1110 and LR1120 Ranging 

• Introduction to Ranging with SX1280 Transceiver 

• SX1280 Ranging protocol and Result Processing 

• Theory and Principle of Advanced Ranging 

• Unlock the Power of LoRa Dual-Band Location Intelligence: Asset Tracking with Light Infrastructure 

Applications:

• Geofencing 

• Proximity detection systems 

• Asset tracking and location services 

• Industrial logistics optimization 

• Warehouse management systems 

Round Trip Time of Flight (RTToF) Demo  

LoRa Mesh Networking Solutions 

The LoRa Mesh Network combines LoRa’s long-range and higher interference resilience with the flexibility, low latency and intensive data exchange offered by mesh networking, making it ideal for deployments requiring very frequent data transmission over areas hard to cover with cellular. At the booth, our partners NeoCortec and Melange Systems Private Limited showcased their mesh networking solutions. While many attendees were familiar with LoRa’s traditional star topology, seeing the mesh network in action generated significant excitement. Our technology experts engaged visitors enthusiastically, explaining the advantages and potential applications of this complementary way to leverage LoRa in sensor. 

Applications:

• Electrical smart metering networks 

• Agricultural monitoring systems 

• Smart lighting 

• Emergency communication networks 

Melange systems LoRa mesh network Demo 

Neocortec LoRa mesh network Demo 

LoRa Basics™ Modem-E platform powered by a solar 

The demonstration showcased a solution leveraging the MCU integrated into LoRa Connect LR1121 chip to run an embedded LoRaWAN stack (Modem-E), so reducing external MCU requirements, accelerating design cycle and lowering bill-of-materials costs for LoRaWAN sensors. The demo was powered by a Dracula solar cell and an e-peas power IC, enabling the Modem-E kit to operate solely on ambient light. This served as a perfect example of an ultra-low-power capabilities of LoRaWAN, suitable for battery less systems. 

One-Channel Hub Demo  

One-Channel Hub is a compact and cost-effective reference design aimed at enabling small-scale LoRaWAN deployments. It's particularly well-suited for applications like smart homes, small businesses, environmental monitoring, etc. With dual spreading factor (SF) connectivity, LR1121 lowers the barrier for adoption, making IoT accessible to small and medium businesses and smart home integrators with enhanced network versatility. 

Semtech One-Channel Hub architecture featuring LR1121 chip with dual spreading factor connectivity for cost-effective small-scale LoRaWAN deployments

Wi-SUN and LoRaWAN 

The "Multi-Connectivity Networking demonstration" showcased LR2021’s ability to support Wi-SUN 4-FSK PHY (Frequency Shift Keying), creating synergies in hybrid or dual networking architectures between LoRaWAN and Wi-SUN networks. This approach could graft LoRaWAN cluster coverage over a Wi-SUN network where mesh density becomes too low to ensure reliable Wi-SUN operation or guaranteed connectivity for ultra-low-power, battery powered or even energy harvested devices. 

Semtech LR2021 enables hybrid LoRaWAN and Wi-SUN network architectures for two key use cases: integrating ultra-low-power sensors with Wi-SUN backhaul (top) and expanding coverage in areas with insufficient Wi-SUN mesh density (bottom)

India LoRa and LoRaWAN Ecosystem Display 

Semtech displayed the depth of LoRa ecosystem in India with "Wall of LoRa and LoRaWAN" devices at the booth. The wall emerged as one of the most noticeable attractions at Semtech’s booth featuring a wide range of solutions built on LoRa technology. The display offered visitors a comprehensive view of the ecosystem’s breadth and adaptability. It consistently drew interest from attendees, sparking discussions on real-world applications and reinforcing the growing relevance of LoRa and LoRaWAN across industries. The wall featured a total of 40 devices across 20 different manufacturers. 

• LoRa End Node Modules from IndieSemiC, SSTPL, Melange Systems Private Limited, and DTDS 
• LoRa Gateway mPcie Modules from ClodPi Labs and SSTPL 
• LoRaWAN Indoor and Outdoor Gateways from System Level Solutions, CloudPi Labs, SSTPL, and Melange Systems Private Limited (single-channel gateway) 
• Gas Meters from Ripple Metering, IGL Genesis Technologies Limited, Capital Innotech, and Hanbit Solutions 
• Water Meters from Ripple Metering, Analogics, CloudPi Labs, System Level Solutions, SSTPL, Nudron, and Tata Communications 
• Electric Meters from Ripple Metering, Enthu Technology Solutions India Private Limited, Elmeasure, and SSTPL 
• Street Light Controllers from CITiLIGHT, Tata Communications, Melange Systems Private Limited, System Level Solutions, Hynetic Electronics Private Limited, and SSTPL  
• Sensors from GND Solutions (temperature, humidity sensor), Tata Communications (SafePass® ID Card Tracker), Enthu Technology Solutions India Private Limited (water level sensor), Tinkerbee Innovations (WeatherBee®), SSTPL (parking sensor), and Asiczen Technologies India Private Limited (pet tracker) 

India Wall of LoRa and LoRaWAN devices 

Semtech Showcases Next-Generation Circuit Protection Solutions  

Semtech reaffirmed its long-standing reputation as a trusted innovator and leader in circuit protection solutions at the event. Semtech impressed attendees with live demonstrations of its latest SurgeSwitch and HotSwitch product families' technologies designed to deliver breakthrough performance in protecting today’s high-reliability electronic systems. 

 SurgeSwitch and HotSwitch demonstrations in Semtech booth at Electronica India 2025 

HotSwitch – Smart Power Path Protection 

The HotSwitch family is a product line of devices with an integrated load switch or eFuse designed to detect and respond to electrical fault conditions, ensuring safe system operation by disconnecting the load from the power source during surge or abnormal voltage events. These devices provide comprehensive protection against inrush current, overvoltage, undervoltage, short circuit, and thermal faults, making them a robust choice for power path protection. 

During the live demo, the HotSwitch HS2240 instantly disconnected the load from the power source during surge voltage events and restored normal operation within microseconds after the fault was cleared. 

Applications:  

• Notebook and tablet computers 

• USB VBUS 

• Telecommunications systems 

• Industrial electronics 

• Access control and security products 

• Smart energy meters            

 SurgeSwitch – Flat Clamping Protection Devices 

The SurgeSwitch series offers advanced protection against Electrical Overstress (EOS) including surge and Electrostatic Discharge (ESD) events. Unlike conventional Transient Voltage Suppressor (TVS) diodes, these devices utilize a surge-rated FET structure with extremely low on-resistance, maintaining a nearly constant clamping voltage across varying current levels (IPP) and temperature ranges. 

A live demonstration compared the TDS2211P (22 V SurgeSwitch) against a traditional 22V TVS diode under same pulse conditions.  

Applications:  

• Universal Serial Bus (USB) Power Delivery 

• Data storage systems 

• Industrial control units 

• Laptops and tablets 

• Smart Meters 

Visitors experiencing the SurgeSwitch Demo 

Advancing Smart Sensing: PerSe® Contact and Control 

Semtech further demonstrated its leadership in intelligent sensing technology with its PerSe Contact and PerSe Control product families.  

PerSe Contact: Low Power Capacitive Sensor for Wearables for Human Detection 

PerSe Contact optimizes user experience in wearable products. Semtech SX9206 is part of the PerSe Contact portfolio. It offers 6 sensor inputs to support features such as in-ear/on-wrist control as well as gesture detection. With ultra-low power consumption and a tiny footprint, it is the ideal choice for applications such as earbuds, smart glasses and smartwatches. 

 Visitors experiencing smart glasses control having Semtech's PerSe Contact capacitive sensor 

PerSe Control High Resolution Touch/Proximity Sensor for Industrial and Automotive

PerSe Control enables interactive Human-Machine Interface (HMI) control in automotive/industrial applications. Semtech SX9331WQ is part of the PerSe Control family. It offers 5-channel sensors to support a wide variety of touch and proximity sensing functions. 

Block diagram of the SX9331WQ 5-channel capacitive sensor controller with integrated Smart Engine, LED driver, and I2C interface

Conclusion 

Market Response and Industry Engagement 

The strong interest across verticals such as Smart Industries, Smart Homes, Smart Cities, E-metering, Drone Applications, and Emergency Communication Systems highlights the accelerating adoption of LoRa and LoRaWAN technologies in India. Technical discussions revealed a clear shift from exploratory initiatives to active deployment planning, with organizations moving from proof-of-concept evaluations to pilot implementations. Alongside LoRa, Semtech’s HotSwitch and SurgeSwitch solutions drew attention for their robust power protection capabilities instantly isolating faults, mitigating surges, and safeguarding critical infrastructure. The sustained engagement following Electronica India 2025 underscores the strategic importance of the Indian IoT market and positions Semtech as a trusted partner for scalable, reliable deployments. 

Strategic Market Position 

The sustained engagement following Electronica India 2025 reflects the strategic importance of the Indian IoT market and the growing recognition of LoRa technology as a foundational connectivity solution. The depth of technical discussions and the volume of follow-up engagements indicate strong market momentum for LoRaWAN deployments across multiple industry verticals. 

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