virtual reality

Posted on by Debashis Das - 1 Comment on SlimeVR Butterfly Trackers – nRF52833-based, ultra-slim, full-body VR trackers offer up to 48h battery life (Crowdfunding)

SlimeVR Butterfly Trackers – nRF52833-based, ultra-slim, full-body VR trackers offer up to 48h battery life (Crowdfunding)

SlimeVR Butterfly Trackers

Designed by SlimeVR in Rotterdam, Netherlands, the SlimeVR Butterfly Trackers are open-hardware, IMU-based, ultra-slim, full-body VR trackers designed for virtual reality gaming, motion capture, VTubing, and more. The trackers provide full-body positional tracking without base stations, cameras, Wi-Fi, or Bluetooth. Each tracker uses an IMU to measure absolute rotation and transmits data over a custom 2.4 GHz ESB protocol via a dedicated dongle supporting up to 10 trackers, eliminating occlusion issues and router setup. Based on Nordic Semi’s nRF52833 wireless MCU, the split “butterfly” design places the PCB and 90 mAh battery side-by-side to achieve a thickness of under 7 mm and a weight below 10 grams, while a flexible interconnect improves comfort when worn under clothing. The system offers a 100–200 Hz refresh rate, <15 ms latency, over 48 hours of battery life with USB-C charging and OTA firmware updates. SlimeVR Butterfly Trackers specifications: Wireless MCU – Nordic nRF52833 CPU […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on Bluetooth 6.2 gets more responsive, improves security, USB communication, and testing capabilities

Bluetooth 6.2 gets more responsive, improves security, USB communication, and testing capabilities

Bluetooth 6.2

Bluetooth 6.2 specification has just been released with a range of new features to enhance responsiveness with shorter connection intervals, strengthen security against amplitude-based RF attacks, and improve communication with a new “Bulk Serialization Mode” that’s especially useful for USB Bluetooth LE audio applications. The new Bluetooth Core 6.2 specification also introduces various BLE Test Mode enhancements. If you feel like Bluetooth specifications are released more often than in the past, that’s normal because the Bluetooth SIG switched to a bi-annual release schedule. For instance, the Bluetooth 6.1 specification was just published last May, or about 6 months ago… Bluetooth 6.2 highlights: Bluetooth Shorter Connection Intervals (SCI) reduce the minimum Bluetooth LE connection interval from 7.5 ms to just 375 µs for faster responsiveness. The change will especially impact high-performance HID devices, real-time human-machine interfaces (HMIs), and latency-sensitive sensors. AR/VR and gaming applications will particularly benefit from the lower latency. […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Bosch magnetic-field quantum sensors leverage synthetic diamonds, lasers, and microwaves for ultra-precise measurements

Bosch magnetic-field quantum sensors leverage synthetic diamonds, lasers, and microwaves for ultra-precise measurements

Bosch Quantum Sensing Development Board

Most people have heard about quantum computers, but quantum sensors? I’ve just come across those as Bosch is developing magnetic-field quantum sensors harnessing “the power of quantum physics to enable measurements with unmatched precision” while being much more compact than other quantum sensors using techniques like SQUIDs (superconducting quantum interference device), vapor cells, or optical traps. Bosch Quantum Sensing (that’s the full company name) further explains its magnetic-field quantum sensors surpass the capabilities of conventional sensors by offering a wider measurement range, higher sensitivity, and higher spatial resolution. They currently have an internal quantum sensor prototype/evaluation board that’s about the size of a smartphone, so they are still quite larger than traditional sensors. Bosch quantum magnetometer can measure tiny magnetic field variations with accuracy, including the Earth magnetic’s field, and even analyze the direction of and magnetude of magnetic fields giving the equivalent of a 3D-point magnetic representation. This notably […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 15 Comments on Orange Pi AIPro (8T) SBC features a 8 TOPS Huawei Ascend AI SoC, runs Ubuntu or openEuler

Orange Pi AIPro (8T) SBC features a 8 TOPS Huawei Ascend AI SoC, runs Ubuntu or openEuler

Orange Pi AIPro (8T)

Orange Pi AIPro (8T) is a new single board computer for AI applications that features an unnamed Huawei Ascend AI quad-core 64-bit processor delivering up to 8 TOPS (INT8) of AI inference performance, although there’s also a 20 TOPS (INT8) variant of the SoC. The SBC comes with up to 16GB LPDDR4X and a 32MB SPI flash but also supports other storage options such as a microSD card, an eMMC flash module, and/or an M.2 NVMe or SATA SSD. The board also features two HDMI 2.0 ports, one MIPI DSI connector, a 3.5mm audio jack, two MIPI CSI camera interfaces, Gigabit Ethernet and WiFi 5 connectivity, a few USB ports, and a 40-pin GPIO header for expansion. Orange Pi AIPro specifications: SoC – Huawei Ascend quad-core 64-bit processor delivering up to 8 TOPS (INT8) AI performance and equipped with an unnamed 3D GPU; Likely Ascend 310B with Arm Cortex-A76 equivalent […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on STMicro VD55G1 – A small, low-power global shutter I3C camera sensor for computer vision

STMicro VD55G1 – A small, low-power global shutter I3C camera sensor for computer vision

STMicro VD55G1 global shutter camera sensor

STMicro VD55G1 is a new global shutter I3C camera sensor with a small die size of 2.7 x 2.2 mm, 804 x 704 pixels native resolution, and consuming about 1mW in its ‘always-on’ autonomous mode to wake up the host when motion is detected. Camera sensors are available with rolling or global shutter, with most from the former type, but as we’ve seen in our reviews of the e-Con Systems See3CAM_24CUG (USB 3.1) and the Raspberry Pi Global Shutter (MIPI CSI) global shutter cameras, the latter is much better we capturing moving objects clearly at high frame rates with fewer artifacts than with rolling cameras. The VD55G1 global shutter sensor will also benefit from the same advantage but is offered in a smaller package working over MIPI CSI and/or I3C, making it suitable for devices with small batteries used in applications such as eye tracking or motion estimation. STMicro VD55G1 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Cadence Neo NPU IP scales from 8 GOPS to 80 TOPS

Cadence Neo NPU IP scales from 8 GOPS to 80 TOPS

Cadence Neo NPU

Cadence Neo NPU (Neural Processing Unit) IP delivers 8 GOPS to 80 TOPS in single core configuration and can be scaled to multicore configuration for hundreds of TOPS. The company says the Neo NPUs deliver high AI performance and energy efficiency for optimal PPA (Power, Performance, Area) and cost points for next-generation AI SoCs for intelligent sensors, IoT, audio/vision, hearables/wearables, mobile vision/voice AI, AR/VR and ADAS. Some highlights of the new Neo NPU IP include: Scalability – Single-core solution is scalable from 8 GOPS to 80 TOPS, with further extension to hundreds of TOPS with multicore Supports 256 to 32K MACs per cycle to allow SoC architects to meet power, performance, and area (PPA) tradeoffs Works with DSPs, general-purpose microcontrollers, and application processors Support for Int4, Int8, Int16, and FP16 data types for CNN, RNN and transformer-based networks. Up to 20x higher performance than the first-generation Cadence AI IP, with […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Andes launches AX45MPV RISC-V CPU core with Vector Extension 1.0

Andes launches AX45MPV RISC-V CPU core with Vector Extension 1.0

AX45MPV RISC core vector extension

Andes Technology has recently announced the general availability of the AndesCore AX45MPV RISC-V CPU which builds upon the AX45MP multicore processor and adds RISC-V Vector Extension 1.0. Equipped with RISC-V vector processing and parallel execution capability, the new RISC-V CPU core targets SoCs processing large amounts of data for applications such as ADAS, AI inference and training, AR/VR, multimedia, robotics, and signal processing. AX45MPV key features and specifications: 64-bit in-order dual-issue 8-stage CPU core with up to 1024-bit Vector Processing Unit (VPU) – compliant with RISC-V V-extension (RVV) 1.0 + custom extensions Supports clusters of up to 8 cores L2 cache and coherence support High bandwidth vector local memory (HVM) AndeStar V5 Instruction Set Architecture (ISA) Compliant with RISC-V GCBPV extensions Andes performance extension Andes CoDense extension for further compaction of code size Separately licensable Andes Custom Extension (ACE) for customized scalar and vector instruction 64-bit architecture for memory space […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on LiFi 802.11bb standard uses light for in-room data transmission up to 224 Gbps

LiFi 802.11bb standard uses light for in-room data transmission up to 224 Gbps

LiFi 802.11bb

The 802.11bb WiFi-like standard, also called LiFi, was ratified in June 2023. It enables data transmission up to 224 Gbps at a few meters range within a room using light instead of RF signals used in most other wireless standards. The technology has been worked on for many years, and we first covered (a version of) LiFi in 2014 that was still part of the IEEE 802.15 standard with speeds up to 1 Gbps. But the Light Communications 802.11bb Task Group was only formed in 2018, chaired by pureLiFi and supported by Fraunhofer HHI, and led to the ratification of the IEEE 802.11bb standard last month. In a typical LiFi setup, you’d have a LiFi-capable router connected to your local network and the Internet, a LiFi-enabled light bulb on a ceiling, and one or more LiFi receivers. From the end-user perspective, it would work like accessing a WiFi access point. […]

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