rtos News - CNX Software - Embedded Systems News

July 21, 2026July 21, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

ART-Pi II development board features 600 MHz STM32H7R7 Cortex-M7 MCU with NeoChrom GPU

The 600 MHz STM32H7R/S Cortex-M7 microcontroller family with an optional NeoChrom 2.5D GPU and up to 640 KB SRAM and 64 KB flash was introduced in 2024. However, apart from ST’s own development boards such as the NUCLEO-H7S3L8 and STM32H7S78-DK, we hadn’t seen any boards based on it. The ART-Pi II development board changes that. It’s a compact board powered by an STM32H7R7L8H microcontroller paired with 32 MB HyperRAM and 64 MB HyperFlash, and featuring a microSD card slot, an RGB LCD connector, WiFi 4 and Bluetooth 5.1 connectivity, two USB-C ports (OTG and Debug), a 40-pin Raspberry Pi-compatible GPIO header, a 28-pin GPIO header, two Qwiic connectors, and an on-board debugger. ART-Pi II board specifications: MCU – STMicro STM32H7R7L8H CPU core – Arm Cortex-M7 @ up to 600 MHz GPU – NeoChrom 2.5D GPU Memory – 64 KB flash Storage – 620 KB SRAM Package – TFBGA225 Memory – […]

July 13, 2026July 13, 2026 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Ambient Scientific GPX10 Pro MCU delivers years of always-on AI on a coin-cell battery

Ambient Scientific GPX10 Pro Cortex M4 MCU always on embedded AI

Ambient Scientific GPX10 Pro is a processor/microcontroller for always-on embedded AI applications on power-constrained edge devices. With a consumption of under <100μW, it can deliver years of always-on AI on one coin-cell battery. The SoC features ten software-programmable MX8 AI cores leveraging the company’s DigAn technology, ultra-low power ADC, an 8-bit DVP camera interface, 2048 KB SRAM, support for numerous peripherals, and an Arm Cortex-M4F core for non-AI workloads. GPX10 Pro key features and specifications: MCU core – Arm Cortex-M4F core clocked at 100 KHz to 100 MHz Memory 2048 KB system SRAM 64KB retention SRAM in “Always On” block Storage – External SPI or QSPI flash 10x MX8 programmable AI Cores for ultra-low power deep learning applications Based on the DigAn AI engine, which can change behavior between being a master and a slave. Up to 2,560 MAC operations per clock cycle (256 MAC per cycle per core) Peak […]

July 2, 2026July 2, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Titan Mini is a smaller Renesas RA8P1-based Edge AI board for RT-Thread RTOS development

The Titan Mini is a smaller and somewhat cheaper version of the RA8P1 Titan board introduced in 2025 for AIoT applications and RT-Thread RTOS development. It still features a Renesas R7KA8P1 Cortex-M85/M33 microcontroller with an Arm Ethos-U55 NPU, but comes with lower-capacity memory and storage chips (32MB SDRAM and 8MB QSPI flash), drops the RJ45 Ethernet ports with a single FPC Ethernet connector, among other cost-saving measures. The only benefit I see besides the smaller size and slightly lower price is the presence of a microphone and a speaker connector for audio applications. Titan Mini specifications: SoC – Renesas RA8P1 (R7KA8P1) MCU cores Arm Cortex-M85 clocked at 1 GHz with Helium MVE (M-Profile Vector Extension) with 32KB I/D caches; 7300+ CoreMarks Arm Cortex-M33 clocked at 250 MHz with 32KB I/D caches GPU – D/AVE 2D drawing engine NPU – Arm Ethos-U55 NPU delivering 256 GOPS at 500 MHz Memory – […]

June 6, 2026June 6, 2026 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications

AkiraOS is a Zephyr-based embedded OS that runs sandboxed WebAssembly applications on microcontrollers and lets users deploy and update firmware OTA without reflashing. In other words, it’s similar to Docker containers, but for microcontrollers. The open-source embedded platform separates the OS from the application. That means the firmware stays stable, while apps are independent .wasm binaries deployable over-the-air without touching the OS, and portable so a single binary works on ESP32-S3, nRF5x, or STM32 MCU boards. AkiraOS highlights: User space Up to 8 wasm apps can be installed Up to two apps can run at the same time Footprint: 50KB to 200KB per app Akiraz runtime – Custom WASM runtime App Manager UI Framework with 32 widgets Shell/console 18 API modules WebAssembly Micro Runtime (WAMR) – Two options: Interpreter or Ahead-Of-Time (AOT) compilation with 10 to 50x higher performance RTOS – Zephyr RTOS Scheduler Network stack HTTP for OTA updates […]

April 2, 2026April 3, 2026 by Debashis Das - No Comments

Nuvoton NuMicro M3331 Cortex-M33 MCU features built-in ARGB LED controller, optional USB 2.0 OTG interface

Nuvoton’s new NuMicro M3331 is a series of 32-bit Arm Cortex-M33 MCUs clocked at 180 MHz that integrate an ARGB LED controller, a DSP instruction set, a single-precision FPU, and TrustZone security for smart factories, renewable energy systems, and consumer devices. In the past, we have written about other Cortex-M33 MCUs like the STM32U3B5/C5, Texas Instruments MSPM33C321A, Nordic Semi’s nRF54LM20A, and various others, but the Nuvoton M3331 series specifically features a built-in Enhanced LED Light Strip Interface (ELLSI) and up to 10 standard LLSI channels. This allows the MCU to natively support gaming ARGB Gen1 and Gen2 LED control protocols, completely offloading the CPU to run fluid, dynamic LED effects. It comes in two variants, the M3333 series and the M3334 series, with the latter adding a high-speed USB 2.0 OTG controller with an integrated PHY. NuMicro M3331 specifications: MCU core – Arm Cortex-M33 32-bit CPU @ 180 MHz with single-precision […]

March 27, 2026 by Debashis Das - 8 Comments

Microchip SAM9X75 Hybrid automotive MCU – Surprisingly ARM9 is still a thing in 2026

When Microchip launched the SAM9X60 in 2020, we were surprised to see a new SoC based on a legacy ARM926EJ-S core. But we were even more surprised to see Microchip doubling down with the SAM9X75, a hybrid automotive-qualified (AEC-Q100 Grade 2) System-in-Package (SiP) with the same classic ARM9 core and integrated DDR2 or DDR3L memory. The first part will be the SAM9X75D5M SiP with 512MB on-chip DDR2 RAM, but the company also designed the SAM9X75D1G with 1 Gbit DDR3L and the SAM9X75D2G featuring 2 Gbit DDR3L. The SAM9X75 hybrid ARM9 MCU targets developers who need an MCU-like development environment, while benefiting from higher processing and display capabilities of microprocessors for automotive and e-mobility HMI applications. Microchip SAM9X75D5M specifications: CPU subsystem Core – ARM926EJ-S running up to 800 MHz (significant increase from older 400-600MHz variants) 32 KB data cache, 32 KB instruction cache, and Memory Management Unit (MMU). Memory 512 Mbit […]

March 5, 2026March 5, 2026 by Debashis Das - 2 Comments

Grinn ReneSOM-V2H is a tiny LGA SoM based on Renesas RZ/V2H processor for vision AI applications

Polish embedded systems company Grinn has recently introduced ReneSOM-V2H, a tiny vision AI SoM built around the Renesas RZ/V2H vision AI processor. Measuring just 42.6 x 37 mm, Grinn claims it is the world’s smallest module based on this specific Renesas MPU, and targets space-constrained Edge AI applications such as smart cameras, robotics, and industrial automation. The RZ/V2H SoC features a heterogeneous architecture with 4x Cortex-A55 cores, 2x Cortex-R8 cores, and 1x Cortex-M33 core, along with a DRP-AI3 accelerator with up to 8 TOPS. It supports LPDDR4 memory and eMMC storage, along with various connectivity options, including PCIe Gen3 (4-lane), USB 3.2, USB 2.0, and Gigabit Ethernet. It also provides four MIPI-CSI camera inputs and a MIPI-DSI display output for vision applications. Grinn ReneSOM-V2H specifications: SoC – Renesas RZ/V2H CPU/MCU cores 4x Arm Cortex-A55 cores up to 1.8 GHz 2x Cortex-R8 real-time cores up to 800 MHz Arm Cortex-M33 microcontroller core up […]

February 16, 2026February 16, 2026 by Debashis Das - 1 Comment

LR2021 LoRa Plus board combines Semtech LR2021 and Nordic nRF54L15 for high-speed FLRC and LoRa connectivity

Last year, Semtech released the LR2021 LoRa Plus transceiver chip, designed to address the low data-rate issue associated with LoRa, but surprisingly, they didn’t release a development board for the chip. Now, almost a year later, Seeed Studio and Semtech have partnered to introduce the LR2021 LoRa Plus development kit targeting long-range high-speed LoRa and FLRC applications up to 2.6 Mbps. Not only does the board support LoRa Gen 4 technology, providing Sub-GHz, 2.4 GHz ISM, and S/L-band operation, but a XIAO nRF54L15 board also adds dual-core processing (Arm Cortex-M33 + RISC-V) and supports other short-range protocols, including NFC, Bluetooth LE 6.0, Matter, Thread, and 2.4 GHz proprietary protocols. The development board also features a 0.96-inch 128×64 OLED, three Grove connectors for expansion, a USB Type-C for power, SWD debugging, and two Sub-GHz and 2.4 GHz SMA connectors. It is compatible with Arduino Uno, STM32 Nucleo, and Nordic DK boards. […]