radar News - CNX Software - Embedded Systems News

August 20, 2025August 20, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

80 GHz mmWave liquid level detection sensor supports ModBus, offers 40m range

I’ve just come across a no-name non-contact, high-precision 80 GHz mmWave radar sensor for liquid level detection with a 40m range, ±5mm accuracy, and Modbus communication over UART. We had seen 24 GHz and 60 GHz mmWave sensors mostly for precise motion detection, but it’s the first time I’ve seen an 80 GHz mmWave sensor, or more exactly, 79 GHz. It operates on the same principle of Frequency Modulated Continuous Wave (FMCW) radar as most other mmWave sensors and connects to an Arduino or other board over UART. It targets applications such as smart water management, industrial process control, and environmental disaster prevention/monitoring. Specifications: MCU – GigaDevice GD32F405 Arm Cortex-M4F microcontroller @ 168 MHz with 192KB SRAM, 3MB flash, 1MB code-flash Transmit frequency – 77–81 GHz (79 GHz mid frequency), 4 GHz bandwidth Output power (EIRP) – 13 to 20dBm Beamwidth (-3dB) Horizontal ±25°, Vertical ±25° With external lens: Horizontal […]

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 […]

January 17, 2025January 17, 2025 by Tomisin Olujinmi - 3 Comments

Home Assistant-compatible 60GHz mmWave radar sensor features a built-in IR blaster (Crowdfunding)

The eMotion Ultra is a Home Assistant-compatible 60GHz mmWave radar presence sensor with a built-in IR blaster with a 15-meter range, a brightness sensor, and a temperature/humidity sensor. It is powered by an Armv8-M KM4 microcontroller with built-in Wi-Fi connectivity and is targeted at simplifying complex smart home setups. The eMotion Ultra 60GHz mmWave radar presence sensor module is reported to be able to “cover up to 40 square meters (430 square feet) using just one device.” It can be configured for up to 4 zones with personalized automations for each zone. The exact Armv8-M KM4 module used isn’t named but is likely based on a Realtek RTL8720CM wireless SoC or other Realtek Ameba microcontroller. Potential applications include security management, lighting automation, home climate control, energy management, and rental property management. We have seen similar presence sensors such as the RoomSense IQ, Seeed Studio’s mmWave fall detection kit, SONOFF SNZB-06P, […]

September 20, 2024September 19, 2024 by Debashis Das - No Comments

NXP Trimension SR250 short-range UWB radar supports secure ranging for Smart Homes and Industrial IoT

NXP Semiconductors has recently introduced Trimension SR250 UWB radar, which NXP is calling the industry’s first single-chip solution that combines on-chip processing with short-range ultra-wideband (UWB) radar and secure UWB ranging. Operating at 6-8.5 GHz, the SR250 supports features like 3D angle-of-arrival (AoA), time difference of arrival (TDOA), and time of flight (ToF) measurements accurate to within ±5 cm. The integrated on-chip radar processing reduces power consumption, which increases efficiency and it can work with AI/ML algorithms on host processors like NXP’s i.MX, RW61x, and MCX families. The SR250 is supported by firmware, middleware, and sample applications, simplifying development and deployment. Applications for this device include smart home automation (e.g., turning devices on/off based on presence), secure access, and safety monitoring, as well as industrial uses such as worker tracking, collision avoidance, and danger zone detection. Trimension SR250 UWB radar specification 3D secure ranging Fully interoperable with IEEE 802.15.4z HRP […]

April 1, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

Sparkfun’s Pulsed Coherent Radar Sensor features Acconeer XM125 60 GHz module, works through walls, offers up to 20-meter range

SparkFun Pulsed Coherent Radar Sensor Acconeer XM125 Qwiic

SparkFun has launched a new Qwiic breakout board for the Acconeer XM125 60 GHz pulsed coherent radar sensor that can measure distance to humans even through walls and works at a distance of up to 20 meters. We’ve seen tiny 24GHz or 60GHz radar modules for several years now, and Supachai even reviewed the Seeed Studio mmWave sensor using ESPHome and Home Assistant late last year with the solution relying on Frequency-Modulated Continuous Wave (FMCW) technology. The Acconneer XM125 is a Pulse-radar module that emits electromagnetic waves in short bursts instead of continuously like FMCW radars and allows longer measurement ranges potentially at the cost of lower accuracy. Sparkfun Pulse Coherent Radar Sensor specifications: Acconeer XM125 Module A121 60GHz Pulsed Coherent Radar (PCR) Integrated baseband, RF front-end, and antenna in package Detects distance, speed, motion, and objects up to 20 meters away Millimeter precise readings Low power consumption STMicro STM32L431CBY6 […]

February 22, 2024 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

STMicro ST60A3H0 and ST60A3H1 60 GHz transceiver ICs aim to replace USB cables

STMicro ST60A3H0 and ST60A3H1 are short-range 60 GHz transceiver ICs that tunnel eUSB2, I2C, SPI, UART, and GPIO signals and aim to replace USB and other cables in consumer devices such as digital cameras, wearables, portable hard drives, and small gaming terminals. They should also find their way into industrial applications such as rotating machinery where cable use may be challenging. The smaller ST60A3H0 chip provides more flexibility and requires an external antenna, while the ST60A3H1 chip is a fully integrated solution with a built-in linear antenna. Both are capable of USB 2.0 speeds of up to 480 Mbps and support UART, GPIO, and/or I2C signals so they are not limited to USB cables and can be used in a range of applications. ST60A3H0 and ST60A3H1 key features and specifications: 60 GHz V-Band transceiver for short-range contactless connectivity up to 480 Mbit/s eUSB2, UART, GPIO, or I2C RF tunneling Low […]

December 19, 2023December 19, 2023 by Supachai Vorapojpisut - 9 Comments

Seeed Studio mmWave sensor kit – Part 1: unboxing and first impression with ESPHome and Home Assistant

mmWave Human Detection Sensor Kit Review Home Assistant

Excited to share my first review, written for CNX Software! This time, we’re diving into the Seeed Studio mmWave Human Detection Sensor Kit, which harnesses the power of mmWave radar. The technology I’m particularly interested in for its smart home potential. Therefore, I jumped at the chance when CNX Software offered a product review opportunity. The kit arrived promptly at my doorstep just one week after accepting CNX Software’s offer. Here are my initial findings of the product and its capabilities to replace existing motion detection products. Unboxing the mmWave sensor kit I opened the DHL box and found the neatly bubble-wrapped mmWave Human Detection Sensor Kit. Alongside the kit, I discovered a bonus: the MR60FDA1 60GHz mmWave Sensor – Fall Detection Module Pro. This higher-frequency module boasts better resolution and even adds a fall detection feature compared to the kit’s included module, the MR24HPC1. However, the MR24HPC1 24GHz mmWave Sensor […]

December 11, 2023December 9, 2023 by Tomisin Olujinmi - No Comments

RoomSense IQ – An ESP32-S3 modular room monitor with mmWave radar presence detection (Crowdfunding)

RoomSense IQ is a modular room monitor for presence-based home automation based on the ESP32-S3 module with Bluetooth Wi-Fi connectivity. It uses physical presence detection to automate your smart home devices. It comes with multiple sensors that can be used to detect human activity and track ambient light, temperature, and humidity levels. It uses mmWave radar technology to determine when rooms are empty and when they are occupied. It also features built-in temperature, humidity, and light sensors for indoor climate monitoring and control. Rather than relying on schedules, or voice detection, RoomSense IQ triggers automations or alerts based on whether people are in a room or not. It is therefore possible to set it to automatically turn off lights or air conditioning in rooms that are empty to save on energy. In addition, the device offers distance to target measurement that can be adjusted to trigger certain actions. RoomSense IQ […]