Uploaded March 2025 | Updated September 2026, 2 weeks ago
At Embedded World 2025, Electromaker stopped by the Nordic Semiconductor booth to learn about Channel Sounding, a new Bluetooth 6.0 feature designed for secure proximity detection and accurate distance measurement — all without relying on signal strength.
🔐 This breakthrough uses phase shift analysis across multiple frequencies to detect distance with impressive accuracy — down to 10 cm in some cases. Nordic explains how this tech, originally pushed by the automotive industry, is perfect for smart locks, car access, and secure door entry, making Bluetooth smarter and more secure.
💡 The demo also explores how interference is handled, how custom algorithms are used to prevent false readings, and why this technology isn’t just theoretical — it’s coming to real devices soon.
More information:
nordicsemi.com/Products/Wireless/Bluetooth-Low-Energy/Channel-Sounding
docs.nordicsemi.com/bundle/ncs-latest/page/nrfxlib/softdevice_controller/doc/channel_sounding.html
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Timestamps:
Intro and Setup at Embedded World - 0:00
What is Channel Sounding? - 0:21
Measuring Distance via Bluetooth Phase Shift - 0:35
Accuracy and Bluetooth 6.0 Specs - 1:21
Secure Access and Automotive Use Cases - 1:57
Preventing Early Unlocking with Proximity Awareness - 2:50
Smart Locks and Home Security Applications - 3:15
Signal Interference and Algorithm Handling - 3:36
Reflective Surfaces and Signal Path Challenges - 4:02
Custom Algorithms for Specific Environments - 4:24
Multi-Node Potential and Triangulation - 4:44
Final Thoughts and Sign-Off - 4:58
At Embedded World 2025, Electromaker stopped by the Nordic Semiconductor booth to learn about Channel Sounding, a new Bluetooth 6.0 feature designed for secure proximity detection and accurate distance measurement — all without relying on signal strength.
🔐 This breakthrough uses phase shift analysis across multiple frequencies to detect distance with impressive accuracy — down to 10 cm in some cases. Nordic explains how this tech, originally pushed by the automotive industry, is perfect for smart locks, car access, and secure door entry, making Bluetooth smarter and more secure.
💡 The demo also explores how interference is handled, how custom algorithms are used to prevent false readings, and why this technology isn’t just theoretical — it’s coming to real devices soon.
More information:
nordicsemi.com/Products/Wireless/Bluetooth-Low-Energy/Channel-Sounding
docs.nordicsemi.com/bundle/ncs-latest/page/nrfxlib/softdevice_controller/doc/channel_sounding.html
▬ Support Us! ▬▬▬▬▬▬▬▬▬▬
For all the latest products, projects and articles, visit our website at electromaker.io
💡 **Stay Connected with Electromaker!**
youtube.com/channel/UCiMO2NHYWNiVTzyGsPYn4DA?sub_confirmation=1
facebook.com/electromaker.io
twitter.com/ElectromakerIO
linkedin.com/company/electromaker
Timestamps:
Intro and Setup at Embedded World - 0:00
What is Channel Sounding? - 0:21
Measuring Distance via Bluetooth Phase Shift - 0:35
Accuracy and Bluetooth 6.0 Specs - 1:21
Secure Access and Automotive Use Cases - 1:57
Preventing Early Unlocking with Proximity Awareness - 2:50
Smart Locks and Home Security Applications - 3:15
Signal Interference and Algorithm Handling - 3:36
Reflective Surfaces and Signal Path Challenges - 4:02
Custom Algorithms for Specific Environments - 4:24
Multi-Node Potential and Triangulation - 4:44
Final Thoughts and Sign-Off - 4:58
