STMicro STM32 Category - CNX Software

March 6, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

STMicro STM32WBA6 2.4 GHz wireless MCU gets up to 2MB flash, 512KB SRAM, USB OTG, and more

STMicro had two announcements yesterday. I’ve already covered the launch of the ultra-low-power STM32U3 microcontroller family, so today, I’ll check the new 100 MHz STM32WBA6 Cortex-M33 wireless MCU family with 2.4GHz radios for Bluetooth LE 6.0, Zigbee, Thread, and Matter designed for wearables, smart home devices, remote weather sensors, and more. The STM32WBA6 is an evolution of the STM32WBA family introduced last year, especially of the STM32WBA54 and STM32WBA55 with many of the same features SESIP (Security Evaluation Standard for IoT Platforms) Level 3 security certification, but gets more memory and flash with up to 512KB of SRAM and up to 2MB of flash. The new STM32WBA6 family also gains a High-Speed USB OTG interface and extra digital interfaces such as three SPI ports, four I2C ports, three USARTs, and one LPUART. STMicro STM32WBA6 key features and specifications: MCU core – Arm Cortex-M33 at 100MHz with FPU and DSP Memory […]

March 5, 2025March 5, 2025 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

STMicro STM32U3 ultra-low-power Cortex-M33 MCU achieves 117 Coremark/mW in active mode, consumes 1.6 µA in stop mode

STMicro STM32U3 is a new family of Arm Cortex-M33 microcontrollers clocked at up to 96 MHz with ultra-low-power consumption designed for utility meters, healthcare devices such as glucose meters and insulin pumps, and industrial sensors. The company says the STM32U3 MCU family is a “market leader in terms of efficiency” with 117 Coremark/mW in active mode, and consumes 1.6µA in stop mode. The Coremark/mW score means the STM32U3 offers almost twice the efficiency of the STM32U5 series, and five times that of the STM32L4 series. Other highlights include up to 1MB of dual-bank flash, 256kB of SRAM, and various interfaces like MIPI I3C, SAI audio, 12-bit ADC, etc… STMicro STM32U3 key features and specifications: MCU Core 32-bit Arm Cortex-M33 CPU @ 96 MHz with TrustZone and FPU Performance 1.5 DMIPS/MHz (Dhrystone 2.1) 387 CoreMark (4.09 CoreMark/MHz) 500 ULPMark-CP 117 ULPMark-CM 202000 SecureMark-TLS ART Accelerator with DSP instructions Memory/Storage 256 KB […]

February 20, 2025February 20, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

STMicro expands the STM32C0 Cortex-M0+ MCU family with STM32C051, STM32C091, and STM32C092 (with CAN FD)

STMicro Nucleo-64 board with STM32C092RC MCU

STMicro first introduced the STM32C0 32-bit Arm Cortex-M0+ MCU family as an 8-bit MCU killer in 2023, followed by the STM32C071 adding USB FS and designed for appliances with graphical user interfaces (GUI). The company has now added three new parts with the STM32C051, STM32C091, and STM32C092. The STM32C051 is similar to the original STM32C031 but adds more storage (64KB vs 32KB) and is offered in packages with up to 48 pins, while the STM32C09x parts offer flash densities up to 256 KB in packages up to 64 pins, and the STM32C092 also gains a CAN FD interface. The STM32C09x parts can be seen as an update to the STM32C071 where more flash memory is needed. That’s 30 new SKUs bringing the total to 55 when different packages and flash memory size/RAM size options are taken into account. The STM32C051 offers the same maximal amount of SRAM as the STM32C031 […]

February 10, 2025February 9, 2025 by Debashis Das - No Comments

STMicro’s STEVAL-MKI109D evaluation board supports all ST MEMS sensors with a DIL24 socket

STEVAL MKI109D MEMS sensor evaluation board

STMicroelectronics has introduced the STEVAL-MKI109D a MEMS sensor evaluation board, designed to test and optimize STMicro’s MEMS sensors for various applications, including industrial automation, smart agriculture, and consumer electronics. Built around the STM32H563ZI Arm Cortex-M33 MCU this development board features I²C, I3C, and SPI interfaces, along with a TDM interface for high-speed sensor data communication. The board is also compatible with STMicro MEMS DIL24 adapter boards, which makes it easy for engineers to test different sensors. Additionally, it has software-adjustable power circuitry (0–3.6V), and onboard power monitoring for accurate analysis of sensor performance. STEVAL-MKI109D specifications Main MCU – STMicro STM32H563ZI Arm Cortex-M33 MCU with DSP and FPU Storage – MicroSD card slot Sensors – Supports all STMicro MEMS DIL24 compatible adapter boards Interfaces – I²C, I3C, SPI, TDM USB – USB Type-C connector for power and programming Misc Onboard J6 connector for STM32 programming and debugging Onboard J9 connector for […]

February 8, 2025February 8, 2025 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

OpenWrt 24.10 released with Linux 6.6, TLS 1.3 by default, and 1970 supported devices

OpenWrt 24.10 open-source lightweight Linux operating system for routers has just been released. It’s been upgraded to Linux 6.6 from Linux 5.15 in OpenWrt 2023.05, supports TLS 1.3 by default, improves support for WiFi 6 (802.11ax), and adds initial support for WiFi 7 (802.11be). After over one year of work since the release of OpenWrt 23.05, OpenWrt 24.10 adds over 5400 commits, and the total number of supported devices is now close to 2,000 at 1,970. It’s also the first stable release supporting OpenWrt One, the router directly designed by OpenWrt developers in collaboration with Banana Pi. OpenWrt 24.10 highlights: TLS 1.3 support in default images with MbedTLS 3.6 Activate POSIX Access Control Lists and file system security attributes for all file systems on devices with big flash sizes. Needed by docker. Note this is not enabled for all targets with the small_flash feature flag, including ath79/tiny, bcm47xx/legacy, lantiq/ase, lantiq/xrx200_legacy, […]

February 5, 2025February 5, 2025 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

iWave Systems iW-RainboW-G54S credit card-sized SBC features an STM32MP133/MP135 OSM Size-S module

iW-RainboW-G54S credit card-sized OSM SBC

iWave Systems iW-RainboW-G54S is a credit card-sized SBC fitted with an OSM Size-S (30x30mm) system-on-module based on STM32MP133 or STM32MP135 Cortex-A7 SoC with up to 1GB RAM, and up to 128GB flash. Interfaces include a Gigabit Ethernet port, a USB Type-A port, an 18-bit RGB LCD display interface, and three 100-pin high-density connectors for additional I/Os. The iW-RainboW-G54S SBC is designed for industrial applications with a temperature range of -40 to +85°C. While it’s fitted with an OSM Size-S module, we’ll also notice the carrier board has a footprint for OSM Size-M (45x30mm) and OSM Size-L (45x45mm) modules indicating it will be used with other OSM modules in the future. iWave Systems iW-RainboW-G54S specifications: System-on-Module – iW-RainboW-G54M SoC (one or the other) STMicro STM32MP133 single-core Cortex-A7 with or without Secure boot + Cryptography; for headless applications STMicro STM32MP135 single-core Cortex-A7 with or without Secure boot + Cryptography; supports LCD-TFT parallel […]

January 31, 2025February 20, 2025 by Debashis Das - No Comments

SparkFun Digi X-ON LoRaWAN development kit combines Digi HX15 gateway with RP2350 IoT node and environmental sensors module

SparkFun has recently released the Digi X-ON LoRaWAN development kit an all-in-one IoT development kit designed to simplify the setup and deployment of LoRa-based IoT systems. It includes the Digi HX15 Gateway, SparkFun IoT Node for LoRaWAN, and the ENS160/BME280 environmental sensor, enabling rapid prototyping and connectivity with the help of the Digi X-ON cloud platform. The SparkFun IoT Node is built around the Raspberry Pi RP2350 microcontroller, which features 16MB flash, 8MB PSRAM, multiple GPIOs, LiPo battery support, microSD storage, and USB-C connectivity. It also integrates the Digi XBee LR module for long-range LoRaWAN communication with pre-activated cloud connectivity. With an onboard Qwiic connector and Arduino support, this development kit is ideal for applications like industrial monitoring, environmental sensing, smart agriculture, remote data collection, and more. Digi HX15 gateway specifications Microprocessor – STMicro STM32MP157C MPU with dual-core Cortex A7 @ 650 MHz, Cortex-M4 @ 209 MHz with FPU/MPU, 3D […]

January 27, 2025January 26, 2025 by Debashis Das - 5 Comments

STM32H7-powered open-source hardware 3D printer mainboard supports up to 6 stepper drivers

SmartPrintCoreH7x Open Source 3D Printer Mainboard

Designed by Boltz R&D, the SmartPrintCoreH7x 3D printer mainboard is an open-source mainboard built around an STM32H7 microcontroller and designed to work with 3D printers from Creality, Anet, and Voron. It supports up to 6 stepper drivers (5 standard drivers plus 1 dedicated driver) and can be expanded further using the “SmartPrintCore Extravaganza” module for additional stepper drivers. Key features of this motherboard include a jumper-less setup, automatic power source switching, and support for both 12V and 24V power supplies. It uses high-efficiency TI buck converters to provide power for multiple fan and servo ports, and there is a dedicated power supply for peripherals, SBCs, and Wi-Fi modules. The board is equipped with a variety of connectors, including Molex, Ultra-Fit, Mini-Lock, and JST-GH for power, motors, and peripherals. SmartPrintCoreH7x specifications: MCU – STMicro STM32H723 Arm Cortex-M7 32-bit core @ 550 MHz with 1MB Flash, 564 KB RAM, FPU, DSP, Ethernet, USB […]