CNX Software - Embedded Systems News

October 31, 2021November 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Status of Zephyr and NuttX RTOS support for ESP32

Espressif has recently announced that both Zephyr and NuttX open-source real-time operating systems had gotten official support for the ESP32 series of WiSoCs. It’s been a long time in the making, and when I first tried the community developer port of Zephyr OS on ESP32 in 2018 it did not work well at all, and I could not even make the blink LED sample work on Wemos Lolin32 board, and the WiFi sample would not even build. But time has passed, Espressif Systems started to officially work on Zephyr in 2020, and now I/Os, WiFi, and some other features work on Zephyr and NuttX RTOSes. Zephyr on ESP32 We first wrote about the Zephyr Project in 2016 describing the OS as follows: Zephyr Project is a lightweight real-time operating system (RTOS) designed for IoT applications and comprised of a microkernel for lower priority tasks, as well as a nanokernel to […]

October 30, 2021December 23, 2021 by Jean-Luc Aufranc (CNXSoft) - 30 Comments

Build an open source-hardware Allwinner D1s RISC-V Linux SBC for under $10

We covered Allwinner D1s RISC-V processor with 64MB built-in RAM a few days ago, and we’ve just found out about Xassette-Asterisk, an open-source hardware board based on the processor that runs Linux (OpenWrt) and is said to cost less than $10 to make. This is significantly cheaper than the Allwinner D1 based Nezha RISC-V Linux SBC currently sold for a little over $100, a rather poor value. The cheaper board will not quite have the same applications with just 64 MB RAM and no HDMI, but it could be great for projects requiring a camera and/or a display, audio interfaces, plus some I/Os. Xassette-Asterisk specifications: SoC – Allwinner D1s single-core 64-bit RISC-V processor @ 1.008 GHz with 64MB DDR2 Storage – MicroSD card slot, 32 MBit SPI flash (W25Q32 – U2 on the board) Display I/F – 40-pin LCD connector, 6-pin touch panel interface, backlight power Camera I/F – 24-pin […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

October 29, 2021November 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Jetson SUB mini PC ships with Xavier NX SoM, 128GB SSD

Jetson SUB is a mini PC powered by NVIDIA Jetson Xavier NX module and equipped with a 512GB 128GB SSD, a WiFi module, all housed in an aluminum case with a cooling fan. [Update Nov 1, 2021: Seeed Studio informed me the SSD would only have 128 GB capacity] Preloaded with NVIDIA Jetpack, the mini PC is designed for higher-end edge AI and IoT workloads leveraging the 384 NVIDIA CUDA cores, 48 Tensor cores, the hexa-core Carmel 64-bit Arm processor, and the two NVIDIA Deep Learning Accelerators (NVDLA) engines from the Xavier NX SoC. Jetson SUB mini PC specifications: NVIDIA Jetson Xavier NX module CPU – 6-core NVIDIA Carmel ARMv8.2 64-bit processor with 6 MB L2 + 4 MB L3 cache GPU – NVIDIA Volta architecture with 384 NVIDIA CUDA cores and 48 Tensor cores Accelerators – 2x NVDLA Engines, 7-Way VLIW Vision Processor Video – Multiple 4Kp60 encode, multiple […]

October 29, 2021November 1, 2021 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

Raspberry Pi Zero 2 W mini review – Benchmarks and thermal performance

The Raspberry Pi Foundation launched the Raspberry Pi Zero 2 W board yesterday with the main difference against Raspberry Pi Zero W board being the much faster Raspberry Pi RP3A0 SiP with a Broadcom quad-core Cortex-A53 processor clocked at 1.0 GHz and overclockable to 1.2 GHz. I received my sample shortly after publishing the announcement, and I had time to test it. Since the main difference is the processor, I’ll focus this review on benchmarks and whether additional cooling is required for the board. Raspberry Pi Zero 2 W kit unboxing If you purchase the board for $15, that’s all you’ll get, but Raspberry Pi Trading sent me a kit with Raspberry Pi Zero 2 W SBC, a USB OTG adapter, a mini HDMI to HDMI adapter, the CSI camera cable, and four rubber pad for the enclosure that comes with three covers: full, hole for 40-pin GPIO header, or […]

October 29, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

SolidRun i.MX 8XLite SoM embeds DSRC modem, GPS for V2X automotive applications

The GPU-less NXP i.MX 8XLite Cortex-A35/M4 SoC was just announced earlier this month for V2X and IIoT applications, and now SolidRun unveiled the first module based on the new processor with the “i.MX 8XLite System-on-Module”. Also equipped with a RoadLINK SAF5400 safety modem, SolidRun’s Mini SoM targets vehicle telematics, vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications, road infrastructure connectivity, and industrial equipment. SolidRun i.MX 8XLite specifications: SoC – NXP i.MX 8XLite single or dual-cire Cortex-A35 processor @ 1.2 GHz, with Cortex-M4F real-time core System Memory – 1GB LPDDR4 with inline ECC Storage – 8GB eMMC flash Ethernet – NXP TJA1100 100BASE-T1 Automotive Ethernet transceiver Wireless NXP RoadLink SAF5400 DSRC/802.11p (V2X) single modem dual antenna (u.FL connectors) GNSS module for GPS 2x Hirose DF40 board-to-board connectors with: Storage – SD/MMC card, PCIe SSD Ethernet – 100BASE-T1 Automotive Ethernet USB – 2x USB 2.0 PCIe – 1x PCIe Low-speed interfaces – 2x I2C, […]

October 28, 2021October 29, 2023 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

Raspberry Pi Zero 2 W and Zero W features comparison

Rapsberry Pi Zero W vs Raspberry Pi Zero 2 W

The Raspberry Pi Zero 2 W quad-core board has just launched, and in this post, we’ll look at how the new board compares to the original Raspberry Pi Zero W SBC. From the photos above they are nearly identical, but looking at the detailed specifications, we’ll find some interesting differences. So the main reasons to get a Raspberry Pi Zero 2 W over a Raspberry Pi Zero W is the extra performance enabled by the quad-core Cortex-A53 processor and possibly better wireless performance. The downsides are at the new board costs $5 more, and power consumption might be higher, but this would have to be tested under various scenarios. Another reason you may end up getting the Zero 2 W board that is not shown in the specifications is the recent shortage of chips, so the new board may be more likely to be in stock at your local distributor.

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025

October 28, 2021October 28, 2021 by Jean-Luc Aufranc (CNXSoft) - 35 Comments

$15 Raspberry Pi Zero 2 W launched with quad-core CPU, 512MB RAM

Raspberry Pi Zero 2 W is the first quad-core SBC from the Raspberry Pi Foundation with the Raspberry Pi Zero form factor. Based on the RP3A0 system-in-package (SiP) comprised of a Broadcom BCM2710A1 quad-core Cortex-A53 processor and 512MB LPDDR2, the new Pi Zero W 2 board offers the exact same interfaces as its predecessor. This includes a MicroSD card socket, a mini HDMI port, two micro USB ports, a MIPI CSI-2 camera connector, as well as an unpopulated 40-pin GPIO header. The wireless module appears to have changed but still offers WiFi 4 and Bluetooth 4.x BLE, and it’s using the same VideoCore IV GPU to handle 3D graphics and video encoding and decoding up to 1080p30. Raspberry Pi Zero 2 W specifications: SiP – Raspberry Pi RP3A0 system-in-package with: SoC – Broadcom BCM2710A1 quad-core Arm Cortex-A53 @ 1GHz (overclockable to 1.2 GHz) with VideoCore IV CPU supporting OpenGL ES […]

October 28, 2021 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Picovoice Cobra Voice Activity Detection Engine shown to outperform Google WebRTC VAD

Picovoice Cobra Voice Activity Detection (VAD) engine has just been publicly released with support for Raspberry Pi, BeagleBone, NVIDIA Jetson Nano, Linux 64-bit, macOS 64-bit, Windows 64-bit, Android, iOS, and web browsers that support WebAssembly. Support for other Cortex-M and Cortex-A based SoCs can also be made available but only to enterprise customers. Picovoice already offered custom wake word detection with an easy and quick web-based training and offline voice recognition for Raspberry Pi, and even later ported their voice engine to Arduino. Cobra VAD is a new release, and, like other VADs, aims to detect the presence of a human voice within an audio stream. Picovoice Cobra can be found on Github, but note this is not an open-source solution, and instead, libpv_cobra.so dynamic library is provided for various targets, together with header files and demos in C, Python, Rust, and WebAssembly, as well as demo apps for iOS […]