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April 24, 2024April 24, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

STMicro LSM6DSV32X Edge AI motion sensor aims to extend battery life in wearables, trackers, and activity monitors

STMicro LSM6DSV32X is a new low-power 6-axis inertial module with the company’s machine-learning core (MLC) with AI algorithms based on decision trees, a 3-axis accelerometer with a full-scale range of 32g, and a 4000 degrees-per-second gyroscope designed to measure intensive movements, impacts, and freefall height (estimation). The features of the sensors enable it to lower the power consumption for functions such as gym-activity recognition to under 6µA, while 3D orientation tracking consumes just 30µA when using STMicro’s Sensor Fusion Low-Power (SFLP) algorithm. It will be found in a range of battery-powered devices such as consumer wearables, asset trackers, and impact and fall alarms for workers or the elderly. STMicro LSM6DSV32X specifications: Triple-channel architecture for UI (user interface), EIS, and OIS data processing Data storage – Smart FIFO up to 4.5 KB Sensors Accelerometer – ±4/±8/±16/±32 g full scale Gyroscope – ±125/±250/±500/±1000/±2000/±4000 dps full scale Embedded temperature sensor Host interfaces SPI, […]

January 30, 2024January 29, 2024 by Paisit Wongsongsarn - 5 Comments

Review of SONOFF SNZB-03P new Zigbee motion sensor with eWelink and Home Assistant

SONOFF continues to release new Zigbee products series including the wireless switches/buttons (SNZB-01P) and temperature and humidity sensors (SNZB-02P) that we reviewed last year. Today, we will review another new sensor, that is the Zigbee 3.0 motion sensor (SNZB-03P) and we’ll need a Zigbee Hub/Bridge/Dongle to receive Zigbee signals to make it work. The technology of this sensor remains PIR, which uses infrared waves similar to before. This is different from the Human Presence sensors that are gaining popularity, which use mmWave (millimeter wave, frequency 3-30GHz). Both types have their pros and cons. SONOFF has also recently released a Human Presence sensor, namely the SNZB-06P which we will review soon. The SONOFF SNZB-03P is suitable for applications where motion needs to be detected (staying standstill won’t work) and places where it is not feasible or practical to run power cables. The latter is advantageous compared to Human Presence sensors because […]

July 25, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

STMicro STHS34PF80 IR sensor for motion and presence detection aims to replace PIR sensors

STMicro STHS34PF80 is a new IR sensor designed for IoT and Smart Home devices requiring motion and/or presence detection that offers an alternative to traditional passive infrared (PIR) sensors and is mostly useful for building automation. The latest IR sensor from STMicro contains thermal transistors (MOSFETs) that can not only detect motion but also stationary objects, something that’s not feasible with conventional PIR detectors that require motion for object detection. The company further adds that PIR sensors need a Fresnel lens to sense moving objects, but the STHS34PF80 detector does not require a lens and as a result, enables much smaller designs. STHS34PF80 key features and specifications: Range up to 4 meters without lens for objects measuring 70 x 25 cm² Integrated silicon IR filter IR sensitivity – 2000 LSB/°C RMS noise – 25 LSBrms Operating wavelength – 5 µm to 20 µm Local temperature sensor accuracy – ±0.3 °C […]

November 19, 2020November 25, 2020 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Shelly Motion sensor to feature Silicon Labs WiFi chip with Bluetooth-like power consumption

[Update: The information from Shelly about a new “Cortana M3” processor is incorrect, we’ve been contacted by Silicon Labs, and there’s no Cortana M3 microcontroller from the company, Shelly is just using one of the company’s Cortex-M3 based WiFi solutions (SoC or module). The article remains unchanged] WiFi is one of the most convenient ways to connect IoT devices as it’s omnipresent, low-cost, and the range is ideal for the typical smart home. That’s all good until you start to power the device with a tiny battery, as WiFi consumes much more power than Zigbee, Z-Wave, or Bluetooth. Over five years ago, Rockchip RKi6000 WiFi SoC promised Bluetooth 4.0 LE power consumption numbers allowing coin-cell powered WiFi devices, and there were some demos the following year, but I’ve yet to see a consumer device based on the solution. This brings me to the main topic of this post: Shelly Motion, […]

October 6, 2019October 6, 2019 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Tiny USB WiFi Camera Supports Motion and AI Human Detection

When I first saw U21 HD camera it reminded me of SOOCOO G1 is action camera with a flexible stick, since the camera also comes with a flexible hose which allows you to orient it as you please. But it’s a different bear, as U21 is a surveillance camera powered over USB and featuring WiFi connectivity. I can’t see any motion detection, so it may have some dose of “AI” since it claims to support motion and human detection so you only get relevant alerts. It is currently sold (pre-orders) on Banggood for $33.65 including shipping with order starting to be processed on October 30th. U21 USB WIFI camera key features and specifications: MCU / WiSoC – No information (yet) Storage – MicroSD card slot up to 128GB for up to one month of recording (8GB = 2 days); Cloud storage via third party (paid) Camera – 14mm lens, HD […]

September 18, 2019 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

A95X Max Plus S922X TV Box Targets Gaming with Wii-like Motion Sensing Remote & Bluetooth Gamepad

Amlogic S922X Android Gaming Console TV Box

Unless a new processor is out, we don’t cover most TV boxes as they mostly provide the same features with little differentiation between products. But the manufacturer of A95X Max Plus TV box has decided to leverage the excellent gaming performance of Amlogic S922X processor, by bundling the device with a Wii-like motion-sensing remote control and a Bluetooth gamepad. The mechanical design is quite different from competing products as well. A95X Max Plus TV box specifications: SoC – Amlogic S922X hexa-core big.LITTLE processor with 4x Arm Cortex A73 cores, 2x Arm Cortex A53 cores, Arm Mali-G52MP GPU; 12nm process System Memory – 4GB LPDDR4 RAM Storage – 64GB eMMC flash, microSD card slot Video Output – HDMI 2.1 up to 4K @ 75 Hz, AV port (composite) Video – AVE-10 engine with 4K UHD H.265/VP9/AVS2 video decoding up to 60 fps, Dolby Vision, Advanced HDR10, HDR10+, HLG, and PRIME HDR […]

May 9, 2018 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Microsoft Introduces Project Kinect for Azure

Kinect started as as motion sensing input device for Xbox 360 & One game consoles with an integrated webcam, infrared projector, and a microphone array, which enabled it to detect depth, motion, and voice from gamers. But it also become popular with maker projects due to price and capabilities, and was even found to be a worthy microphone array for voice commands. The third generation of Kinect went into Hololense mixed reality headset, and Microsoft has just unveiled the fourth generation Kinect with Project Kinect for Azure. AFAIK, the company did not provide the full technical details about the new Kinect, but we know it comes with an RGB camera, a 360-degree mic array, an accelerometer, and a time-of-flight (ToF) depth-sensor, and the company did offer some details about the latter : Number of pixels: 1024×1024 resolution Highest Figure of Merit (highest modulation frequency and modulation contrast resulting in low […]

February 9, 2018 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

SocioNext MN87900 is a Really Tiny 24 GHz Radio Wave Radar Module for the Internet of Things

In the past, we covered tiny microwave radar modules operating at 5.8 GHz and measuring just 32 x 23 mm. Those modules are normally used to detect motion, distance, and/or direction of movement. Socionext has now introduced MN87900, a single low-power single-chip 24 GHz radio wave IoT sensor solution that even smaller at just 12x7mm with the chip, Tx and Rx antennas, crystal, and 40-pin to solder the module to your board. The solution targets IoT equipments, security systems, smart home appliances, autonomous vehicles and drones, medical devices, and more. SocioNext MN87900 key specifications: Sensor Type – CW, FSKCW, FMCW (moving or stationary) Detection Motion direction – approaching or leaving Motion speed – up to 200 km/h Range – 0.15 to 8 meters 80°@-3dB, expandable to 30 meters with a radome horn, a metal shield that narrows the field of view. Variable frequency width – 24.15±0.1 GHz Transmission Power – […]