Nordic Semiconductor Thingy:53 gesture Edge AI on nRF5340, nRF54L15 vs nRF52 power and cores

Filmed at Embedded World North America, this demo from Nordic Semiconductor shows a tinyML remote-control running on the Thingy:53. Using the Neuton Edge AI framework on the nRF5340, the device maps IMU data to gestures for media or UI control with very low latency and a few kilobytes of memory. In Nordic’s event note, a related model recognizes seven gestures in 1.7 ms using ~4 KB, underscoring how small these networks can be for handhelds and wearables. https://www.nordicsemi.com/Products/D... --- HDMI® Technology is the foundation for the worldwide ecosystem of HDMI-connected devices; integrated with displays, set-top boxes, laptops, audio video receivers and other product types. Because of this global usage, manufacturers, resellers, integrators and consumers must be assured that their HDMI® products work seamlessly together and deliver the best possible performance by sourcing products from licensed HDMI Adopters or authorized resellers. For HDMI Cables, consumers can look for the official HDMI® Cable Certification Labels on packaging. Innovation continues with the latest HDMI 2.2 Specification that supports higher 96Gbps bandwidth and next-gen HDMI Fixed Rate Link technology to provide optimal audio and video for a wide range of device applications. Higher resolutions and refresh rates are supported, including up to 12K@120 and 16K@60. Additionally, more high-quality options are supported, including uncompressed full chroma formats such as 8K@60/4:4:4 and 4K@240/4:4:4 at 10-bit and 12-bit color. --- Opening the Thingy:53 reveals the dual-core nRF5340 with Arm Cortex-M33s and a suite of sensors, including accelerometer and gyroscope for motion, plus other on-board peripherals often used in IoT prototyping. In this recording the engineer cites footprint numbers of about 6.3 KB of flash and 1.4 KB of RAM for the deployed model, while the show preview highlights a 4 KB, 1.7 ms variant for seven gestures, reflecting build choices and optimization targets for different use cases rather than a single fixed profile for inference The booth also compares nRF52 and nRF54 families under the same math workload. The nRF52 platform (e.g., nRF52840 at 64 MHz Cortex-M4F) sits around ~900 µA to ~1 mA in the demo, while an nRF54 device measures near ~370 µA for the same computation. The nRF54L15 runs an M33 at 128 MHz on a 22 nm node, and the nRF54H20 adds multiple M33s up to 320 MHz with RISC-V coprocessors, enabling faster compute at lower energy per operation for wireless edge devices under tight power budgets A key architectural theme is heterogeneous processing. Application logic runs on Cortex-M33, while time-critical or delegated tasks can be offloaded to RISC-V helper cores on nRF54H20, coordinated via the nRF Connect SDK and inter-domain messaging. Nordic’s current Wi-Fi is via the nRF7002 companion IC, hosted by an SoC like nRF5340 on the Thingy:53 DK, which aligns well with Bluetooth LE, Thread, Zigbee and Matter projects that pair a low-power host with a radio or co-processor path to keep average current low during wireless duty cycles Boards on display span nRF52 DKs through nRF5340 DKs to nRF54 L-series and H-series variants such as nRF54L15, nRF54LM20, and nRF54H20. For developers, the takeaway is practical: gesture-based HID over BLE, slide control, or AR/VR media control can be built with IMU-only signals and an embedded model small enough to fit in spare flash and RAM, leaving headroom for protocol stacks and application code in everyday consumer or industrial hardware Check out all my Embedded World North America videos in my Embedded World playlist here:    • Embedded World   This video was filmed using the DJI Pocket 3 ($669 at https://amzn.to/4aMpKIC using the dual wireless DJI Mic 2 microphones with the DJI lapel microphone https://amzn.to/3XIj3l8 ), watch all my DJI Pocket 3 videos here    • Filmed with DJI Pocket 3   Join https://www.youtube.com/charbax/join for Early Access to my videos and to support my work, or you can Click the "Super Thanks" button below the video to send a highlighted comment under the video! Brands I film are welcome to support my work in this way 😁 Check out my video with Daylight Computer about their revolutionary Sunlight Readable Transflective LCD Display for Healthy Learning:    • Daylight Computer CEO interview: Healthy C...