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December 5, 2024December 5, 2024 by Debashis Das - No Comments

Murata LBWA0ZZ2HK/HL low-power Wi-Fi HaLow modules can communicate over 2km

Murata has recently introduced two new ultra-low power, sub-1 GHz Wi-Fi HaLow modules (LBWA0ZZ2HK and LBWA0ZZ2HL) compliant with Sub-1 GHz (S1G) 802.11ah Wi-Fi standard across key regions. The Type 2HK module operates at frequencies from 902MHz to 928MHz and features a communication range of 2km, whereas the low-power Type 2HL operates at 750MHz to 950MHz and can communicate over 1km. According to Murata, these modules can achieve high-speed communication over 1km and are suitable for applications such as smart devices, smart homes, smart accessories, and others. The modules are based on the NEWRACOM NRC7394 chipset built around an Arm Cortex-M3 with enough processing power for handling the Wi-Fi subsystem and user applications. Both modules feature an SPI host interface with peripherals including SPI, 2x UART, 2x I2C, 2-channel 10-bit ADC, and GPIO. Murata LBWA0ZZ2HK and LBWA0ZZ2HL specifications: HaLow SoC – Newracom NRC7394 SoC Frequency 2HL – Sub-1 GHz (750-950 MHz) […]

December 4, 2024December 5, 2024 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Silicon Labs SiWG917Y and SiWN917Y are ultra-low power WiFi 6 and Bluetooth LE 5.4 IoT modules

Silicon Labs SiWG917Y and SiWN917Y are pre-certified, ultra-low power 2.4 GHz WiFi 6 and Bluetooth Low Energy (LE) 5.4 modules made as an extension of the Wireless Gecko Series 2 Arm Cortex-M33 microcontroller family and designed for IoT applications such as Smart Home devices, building automation solutions, healthcare devices, industrial sensors, and asset trackers. The SiWG917Y module is used as a standalone solution where all application code runs on an Arm Cortex-M4 core, and the SiWN917Y module is designed as a Network Co-processor so customers can execute their application on a separate MCU while the wireless module manages WiFi 6 and BLE 5.4. Silicon Labs SiWx917Y modules specifications: Microcontroller MCU Arm Cortex-M4F application core up to 180 MHz (225 DMIPS performance) Arm Cortex-M4 network wireless processor running up to 160 MHz, Accelerators – Integrated FPU, MPU, NVIC, Matrix vector processor (MVP) Memory 672 KB embedded SRAM shared by Cortex-M4 and […]

December 3, 2024December 2, 2024 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Matter 1.4 specification improves multi-admin and energy management, adds new devices like solar panels, batteries, and water heaters

We covered the Matter 1.3 specification in May 2024, but the Connectivity Standards Alliance is wasting no time and the Matter 1.4 specification is already out with features and improvements such as “Enhanced Multi-Admin”, Matter certifiable Home Routers and Access Points, energy management enhancements, and several new device types such as solar power equipment and batteries. Matter has been deployed in millions of Smart Home products in just a few years and aims to enable interoperability between devices from multiple vendors. Paisit reviewed a few Matter products from SONOFF including the MINIR4M Smart Switch, SONOFF Zigbee Bridge Ultra, and SwitchMan M5 Matter wall switch, and while Matter interoperability is working since devices can be controlled from Matter-compatible apps (e.g. Apple Home), users do lose some features found in the “native” app such as eWelink in the case of SONOFF devices. Matter 1.4 key improvements and new features: Home Routers and […]

November 29, 2024December 2, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

STMicro NUCLEO-WL33CC1 and NUCLEO-WL33CC2 boards features STM32WL33 Cortex-M0+ Sub-GHz wireless MCU

STMicro NUCLEO-WL33CC1 Sub-GHz development board

STMicro unveiled the STM32WL3 sub-GHz wireless MCU family last year and has now announced the general availability of the STM32WL33 Arm Cortex-M0+ microcontroller, along with two development boards namely the NUCLEO-WL33CC1 and NUCLEO-WL33CC2 for battery-powered smart meters and smart building and industrial monitoring solutions using wireless M-Bus, Sigfox, WiSun, LoWPAN or Mioty LPWAN protocols among others. The NUCLEO-WL33CC1 and NUCLEO-WL33CC2 development boards look the same, but the former supports 826-958 MHz high-band frequencies, while the latter handles 413-479 MHz low-band frequencies. STMicro NUCLEO-WL33CC1/2 specifications: SoC – STMicro STM32WL33CCV6 MCU Core – Arm Cortex-M0+ up to 64 MHz Memory – 32KB SRAM with full retention Storage 256KB flash 1 KB OTP flash (user data) Sub-GHz Wireless 413-479 MHz or 826-958 MHz frequency bands with OOK, ASK, 2(G)FSK, 4(G)FSK, D‑BPSK, and DSSS modulations Compatible with proprietary and standardized wireless protocols such as WM-Bus, Sigfox, Mioty, KNX-RF, and IEEE 802.15.4g Low-power autonomous wake-up […]

November 8, 2024 by Tomisin Olujinmi - No Comments

Renesas RA8E1 and RA8E2 entry-level Arm Cortex-M85 MCUs target cost-sensitive applications

Fast Prototyping Board for Renesas RA8E1

Renesas has expanded its Arm Cortex-M85-based RA8 series to include two new entry-level MCUs, RA8E1 and RA8E2. The new microcontrollers perform similarly to other Arm Cortex-M85-based microcontrollers and are offered at a lower price point thanks to a streamlined feature set to reduce costs. The RA8E1 and RA8E2 groups of microcontrollers will be useful for high-volume applications in industrial and home automation, healthcare, office equipment, and consumer products. We have previously covered other models in Renesas’ RA8 series, including the Renesas RA8T1, RA8D1, and the very first Cortex-M85 microcontroller, the Renesas RA8M1. The RA8 series consists of microcontrollers based on the Arm Cortex-M85 core with a performance of 6.39 CoreMark/MHz and Arm’s M-Profile Vector Extension which provides a 4x performance boost for DSP and ML workloads while maintaining low power consumption. The RA8E1 and RA8E2 Cortex-M85 microcontroller groups differ mostly in clock speed, available internal and external memory, communication interfaces, […]

November 2, 2024 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Seeed Studio’s XIAO MG24 and XIAO MG24 Sense boards target battery-powered Matter and BLE applications

Seeed Studio has added two members to its XIAO family of tiny MCU boards with the XIAO MG24 and XIAO MG24 Sense boards based on Silicon Labs EFR32MG24 multi-protocol wireless SoC and designed for battery-powered Matter over Thread and Bluetooth LE 5.3 applications. Both 21×17.8 mm USB-C boards feature a 78MHz Silabs MG24 Cortex-M33 microcontroller with 256kB SRAM and 1536KB flash, an additional 4MB SPI flash on-board, and 22 pins and pads for GPIO pins, analog inputs, and power signals, plus a reset button and two LEDs. The “Sense” model adds an analog microphone and a 6-axis IMU sensor. XIAO MG24/MG24 Sense specifications: SoC – Silicon Labs EFR32MG24 (EFR32MG24B220F1536IM48-B) MCU cores Arm Cortex-M33 @ 78.0 MHz with DSP instruction and floating-point unit for user application Arm Cortex-M0+ core for wireless Memory – 256 KB RAM Storage – 1536 KB flash Wireless protocols – Matter, OpenThread, Zigbee, Bluetooth Low Energy 5.3, […]

November 1, 2024November 1, 2024 by Tomisin Olujinmi - No Comments

STMicro’s low-power ST1VAFE3BX AI biosensor integrates biopotential signal monitoring and motion tracking

STMicroelectronics (STMicro) has announced the ST1VAFE3BX biosensor, a highly integrated chip that combines “cardio and neurological sensing with motion tracking and embedded AI functionalities,” and is targeted at healthcare and fitness wearables. The ST1VAFE3BX biosensor chip integrates biopotential inputs with an accelerometer and a machine learning core for reduced power consumption. It features a complete vertical analog front end (vAFE) for simplified detection of vital signs in electrocardiography, electroencephalography, and other healthcare monitoring applications. Inertial sensing by the accelerometer is synchronized with biopotential sensing “to infer any link between measured signals and physical activity.” The integrated machine-learning core (MLC) and finite state machine (FSM) allow for ultra-low-power and accurate biopotential input recognition at a degree of responsiveness that is reportedly faster than the current industry standard. The ST1VAFE3BX is aimed at applications in healthcare and fitness wearables such as smartwatches, smart patches, sports bands, connected rings, and smart glasses. It […]

October 24, 2024 by Tomisin Olujinmi - No Comments

Renesas RX260 and RX261 64 MHz RXv3 MCUs target power-efficient touch applications

Renesas RX260 RX261 RXv3 microcontrollers

The Renesas RX260 and RX261 two new 64 MHz microcontrollers part of the high-performance, high-efficiency RX product family with integrated capacitive touch-sensing and high power efficiency in both active and standby modes. The microcontrollers are based on the RXv3 core with a performance score of 355 CoreMark @ 64MHz, which is “2.5 times higher than competing 64 MHz class MCUs.” The chips are also power-efficient, with a consumption rate of 69μA/MHz during active operation and 1μA only in standby mode. According to Renesas, the chips are up to 25% more efficient in active mode and 87% more efficient in standby mode than other 64 MHz class MCUs. Another competing factor is the onboard 8KB of data flash, eliminating the need for external EEPROM. The RX260 and RX261 Group MCUs support noise- and water-resistant capacitive touch via Renesas’ third-generation capacitive touch IP (CTSU2SL). They also integrate an “automatic judgment function” that […]