sensors News - Page 4 of 27 - CNX Software

August 7, 2025 by Jean-Luc Aufranc (CNXSoft) - No Comments

XIAOML Kit with ESP32-S3, camera, microphone, and IMU complements a free Machine Learning Systems book

XIAOML Kit Machine Learning Systems Book

The XIAOML Kit is one of the devkits that complements Harvard University Professor Vijay Janapa Reddi’s book “Introduction to Machine Learning Systems“, available for free as a 2050-page PDF file. Made by Seeed Studio, the XIAOML Kit is composed of the XIAO ESP32S3 Sense with an ESP32-S3 WiFI and Bluetooth SoC, a microSD card slot, a built-in OV3660 camera and microphone, and the “IMU Breakout board” featuring a 6-axis IMU and 0.42-inch OLED display. The kit enables students, educators, and developers to build vision, sound, and motion applications through tinyML lab sessions developed with Marcelo Rovai (UNIFEI). XIAOML Kit specifications: Main Board – XIAO ESP32S3 Sense SoC – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 microcontroller @ 240 MHz with 512KB SRAM, 8MB PSRAM, Wi-Fi 4 & Bluetooth 5.0 dual-mode (Classic + BLE) connectivity Storage – 8MB flash, microSD card slot Sensors – OV3660 camera, digital microphone USB – USB-C port […]

July 31, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Neuro PlayGround Lite – A multichannel wireless bio-signal capture board for HCI & BCI projects (Crowdfunding)

Neuro PlayGround Lite, or NPG Lite for short, is an ESP32-C6-powered multichannel wireless bio-signal capture board designed for HCI (Human-Computer Interface) and BCI (Brain Computer Interface) projects and applications. It can capture Electrocardiography (ECG), Electromyography (EMG), Electrooculography (EOG), or Electroencephalography (EEG) signals, and the ESP32-C6-MINI-1 module used in the design supports 2.4 GHz WiFi 6, Bluetooth LE, Zigbee, and Thread for mesh networking. It also follows the Adafruit Feather form factor, so it can be expanded with FeatherWings add-ons, including the company’s Playmate boards. Neuro PlayGround Lite specifications: Wireless Module – Espressif Systems ESP32-C6-MINI-1-N4 SoC – Espressif Systems ESP32-C6 CPU Single-core 32-bit RISC-V clocked up to 160 MHz Low-power RISC-V core @ up to 20 MHz Memory/Storage – 320KB ROM, 512KB SRAM Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0, and 802.15.4 radio (for Thread/Zigbee) Storage – 4MB flash Antenna – PCB antenna USB – USB Type-C port for power/charging […]

July 30, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

$5,900 Unitree R1 is an ultra-lightweight, customizable humanoid robot

The Unitree R1 is a cost-effective, ultra-lightweight, and customizable humanoid robot that stands 1.21m tall and weighs approximately 25kg in its default configuration. The company says pricing starts at $5,900, which is considerably cheaper than the company’s G1 humanoid robot or Elephant Robotics’ Mercuxy X1 wheeled humanoid robot, both of which go for about $16,000 and up. Some cost-cutting measures had to be taken for the lower price, including a slightly shorter design and missing features like working hands… Let’s check out the specifications for more details. Unitree R1 specifications: Computing 8-core CPU Optional “high-power computing module” for EDU version only: NVIDIA Jetson Orin with 40 to 100 TOPS of AI processing power Audio 4-Mic Array Build-in Speaker Camera – Humanoid binocular cameras Wireless – WiFi & Bluetooth 5.2 Degree of Freedom (Total Joints) – 26 Single Leg Degrees of Freedom – 6 Single Arm Degrees of Freedom – 5 […]

July 27, 2025July 27, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

DreamHAT+ 60 GHz mmWave Radar HAT+ brings high-precision motion sensing to Raspberry Pi 4/5

Dream RF’s DreamHAT+ is a mmWave Radar HAT+ for the Raspberry Pi 4B and 5, designed around Infineon’s BGT60TR13C 60 GHz mmWave radar chip with four integrated antennas (1x Tx, 3x Rx) for directional sensing and motion tracking. Like other 24GHz or 60GHz mmWave solutions we’ve seen in the past, for instance Seeed Studio’s mmWave Human Detection Sensor Kit, Sparkfun’s Pulsed Coherent Radar Sensor, and RoomSense IQ ESP32-S3 room monitor, the DreamHAT+ is designed to sense tiny movement within a room or outside (since it works through walls) for human presence detection, fall detection, etc… in applications such as robotics and smart home automation. mmWave DreamHAT+ radar specifications: Radar chip – Infineon BGT60TR13C XENSIV 60 GHz radar sensor Operating Frequency – 58 – 63.5 GHz Transmission Bandwidth – 5 GHz Output Power – <10 mW EIRP: <15 dBm Detection Range – 0.1 – 15 m Range Resolution – 3 cm […]

July 25, 2025July 25, 2025 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

BME690 8x shuttle board features eight identical 4-in-1 gas and air quality sensors

BME690 8x shuttle board application 3.0 board

Bosch Sensortech BME690 8x shuttle board is a sensor board comprised of eight identical BM690 4-in-1 gas/temperature/humidity/pressure sensors capable of monitoring indoor air quality and detecting Volatile Organic Compounds (VOCs), Volatile Sulfur Compounds (VSCs), and other gases. The obvious question is “What’s going on? Why would a board need 8 identical sensors?”. The board flyer isn’t overly specific: … the shuttle board can be used to evaluate the signal outputs provided by the sensor itself as well as the additional outputs generated by the BSEC library for BME690 So let’s try to understand, starting with the specification from the BME690 sensor. Bosch Sensortech BME690 specifications: Gas sensor Sensor-to-sensor deviation (IAQ) – ± 15% ± 15 IAQ IAQ Operating modes – 3 sec (LP) and 300 sec (ULP) Major sensor outputs – Index for Air Quality (IAQ), bVOC- & CO2-equivalents (ppm) Humidity sensor Range – 0…100% Response time – 1 s (τ0-63%) […]

July 15, 2025July 16, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Wio-LR1121 tiny LoRa module supports for sub-GHz, S-Band, and 2.4GHz frequency bands

Seeed Studio Wio-LR1121 is a tiny, multi-band LoRa module based on LR1121 RF transceiver, a low-cost version of LR1120 without GNSS or Wi-Fi scanning capabilities, that supports sub-GHz, S-Band (1.9-2.1GHz), and 2.4GHz frequency bands. We had previously seen the LR1121 used in the MuRata Type-2GT module and a LILYGO module as an option for the T-Eth Elite board. The Wio-LR1121 offers another option that’s easy to solder, thanks to castellated holes and pads. Wio-LR1121 specifications: RF Transceiver – Semtech LR1121 Frequency bands – 863 to 928MHz and 2.4 to 2.5GHz frequencies; Note: The LR1121 also supports S-Band at 2.1 to 2.3 GHz, but it’s not mentioned in the specifications of the module, and only briefly in the title and description Output Power Up to 20.4dBm @ 868/915 MHz Up to 11dBm max @ 2.4GHz Receiver Sensitivity RxBoost ON： -126dBm @ SubG,BW=125KHz, SF = 7 -140dBm @ SubG, BW=125KHz, SF = […]

June 30, 2025June 30, 2025 by Debashis Das - No Comments

Hexfellow Y200 IMU – An industrial 9-axis sensor with shock-resistant housing, CAN Bus, and 60V input

Hexfellow Y200 IMU 9 axis industrial IMU

The Hexfellow Y200 is a rugged, 9-axis industrial-grade IMU module designed for robotics and AGV applications. It supports direct 12V to 60V input and connects via a CAN Bus interface using a standard XT30 connector. The module produces high-accuracy roll, pitch, and yaw angle output at up to 200Hz, and combines a low-variance accelerometer and gyroscope for stable performance. Its reinforced enclosure and internal potting process enhance shock resistance and durability. Measuring 60 x 60 x 15 mm, the Y200 is built to operate in temperatures ranging from -20°C to 85°C, making it suitable for demanding industrial environments. Hexfellow Y200 IMU specifications: IMU Type – 9-axis industrial-grade IMU (Gyroscope, Accelerometer, Magnetometer) Interface – XT30 connector for CAN bus (CANOpen protocol, Node ID: 0x10) Angle Output: Roll/Pitch Accuracy – ±0.15° (1σ RMS) Yaw Accuracy – ±0.2° (1σ RMS) Range – Roll: ±180°, Pitch: ±90°, Yaw: ±180° (Unreferenced) Resolution – 0.001° Gyroscope: […]

June 28, 2025June 28, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

AnyShake Explorer – An affordable, open-source hardware seismic monitoring system (Crowdfunding)

AnyShake Explorer is a relatively affordable, open-source hardware seismic monitoring system that offers an alternative to the Raspberry Shake earthquake monitoring solutions. The device supports up to three 3-axis geophones and integrates a 3-axis accelerometer and a 32-bit ADC for measurements. You just need to connect it to a host like a laptop or an SBC such as a Raspberry Pi, an Orange Pi, a Radxa ROCK, or a NanoPi over a USB to RS232 cable to get started. Anyshake Explorer specifications and key features: MCU – STMicro STM32F103CBTx Arm Cortex-M3 microcontroller Sensors Geophone 3-axis 4.5 Hz velocity geophone (100 V/m/s sensitivity) Three geophone inputs Capture through a high-resolution 32-bit ADC IMU – 16-bit 3-axis accelerometer (±2 g full scale) Data acquisition Modes – Accelerometer-only mode, geophone-only mode, and simultaneous sampling (6 channels) Sampling rates – 50/100/200/250 SPS Networking – SeedLink protocol support, TCP raw data forwarding Host interface 2x RS-232 […]