CNX Software - Embedded Systems News

August 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

CrowPi L Review – Part 2: Learn programming and electronics with a Raspberry Pi 4 laptop

CrowPi L review learn programming electronics

In the first part of our review of CrowPi L Raspberry Pi 4 laptop for education, we checked the hardware and accessories such as the CrowTail starter kit with various sensors and other electronics modules, and showed how to install or remove the Raspberry Pi 4 SBC from the laptop shell. I’ve now had more time to play with the educational software, so I’ll report my experience with the laptop when learning game design and hardware control with Letscode visual programming IDE, as well as the Python lessons for more advanced students. Reinstalling CrowPi OS image It’s the rainy season here in Thailand meaning it’s both hot and humid, and even though I’m not entirely sure it’s related, I recently had to reinstall Raspberry Pi OS on one of my Raspberry Pi with a corrupted SD card. It happened again with the CrowPi L after I left it in its […]

August 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

AquaPing is an open-source, battery powered acoustic water leak detector module (Crowdfunding)

The AquaPing is an open-source hardware, ultra-low power acoustic water leak detector sensor based on Texas Instruments MSP430 microcontroller and a microphone that can detect leaks without having to do any plumbing, instead capturing audio for water leak detection, and it even works for leaks behind walls. All signal processing and analysis occur on the MSP430 MCU, so no audio is streamed to the cloud and eavesdropping is impossible, plus the sensor only captures high frequencies out of the range of normal conversations, so eavesdropping is not feasible, plus those higher frequencies are also said to provide highest sensitivity and reliability. AquaPing specifications: MCU – Texas Instruments MSP430FR5994 microcontroller to perform FFT spectral analysis (10x faster/efficient than ARM-Cortex M0+) Audio capture – MEMS microphone covered by a small rectangular plastic structure to form a Helmholtz resonator. Minimum detectable leak rate – 0.01 gpm (gallon per minute) depending on stand-off distance […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM

August 11, 2022August 17, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

ESP32 board with rotary encoder gets 2-key keypad shield

LILYGO TTGO T-Encoder, a round-shaped ESP32 board with a built-in rotary encoder, has gotten a shield with a 2-key keypad based on WCH CH552 8-bit microcontroller. Launched several months ago, the TTGO T-Encoder is a USB-powered rotary encoder with ESP32 microcontroller offering WiFi and Bluetooth connectivity, and now, you can build a keypad with rotary encoder thanks to T-Encoder shield that features two mechanical switches and keycaps with RGB LED backlight. Since we missed it at launch, let’s check out the tiny TTGO T-Encoder board specifications first: System-in-Package (SiP) – Espressif ESP32-PICO-V3-02 with MCU – ESP32 Xtensa dual-core 32-bit Xtensa LX6 microcontroller up to 240 MHz, 448 KB ROM for booting and core functions, 520 KB SRAM for data and instructions, 2.4 GHz WiFi 4 and Bluetooth 4.2 BR/EDR + LE connectivity Memory – 2MB SPI PSRAM Storage – 8MB SPI flash Dimensions – 7×7 mm Antenna – Ceramic […]

August 10, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

Renesas RZ/N2L Arm Cortex-R52 MPU targets industrial Ethernet and TSN

Renesas RZ/N2L Arm Cortex R52 ethernet switch

Renesas RZ/N2L is an Arm Cortex-R52 microprocessor (MPU) family for industrial Ethernet communication equipped with an integrated TSN-compliant 3-port Gigabit Ethernet switch and an EtherCAT slave controller. The new processors also support other major industrial network communication protocols such as EtherCAT, PROFINET RT, EtherNet/IP, and OPC UA, as well as the new PROFINET IRT (Isochronous real-time) that allows deterministic communication with cycle times down to 31.25 µs and one µs of jitter. Renesas RZ/N2L key features and specifications: CPU – Arm Cortex-R52 @ up to 400MHz with 16KB I-cache with ECC, 16KB D-cache with ECC Memory Tightly coupled memory – 256KB with ECC Internal RAM – 1.5MB with ECC Octa/Quad SPI for HyperRAM, HyperFLASH, SRAM, SDRAM Networking Ethernet L2 switch: 3x external ports with Gigabit support TSN support (IEEE 802.1AS-2020, IEEE 802.1Qbv/802.3br, IEEE 802.1Qbu, etc.) Network redundancy support (DLR, PRP) EtherCAT slave controller Industrial Ethernet – EtherCAT, PROFINET RT/IRT, EtherNet/IP, […]

August 10, 2022 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Another consequence of supply shortage: mass production mishaps

Chips may suddenly disappear from the supply chain or get really expensive due to the recurring supply shortage, companies are now designing their PCBs to support multiple chips either selecting drop-in replacements or creating multiple footprints to cater to at least one alternative part. That means one PCB and multiple bill-of-materials are needed to be more resilient to any supply disruption. Radxa did that on the ROCK 3A board for the USB PD circuitry with the ability to use either Injoinic IP2315 or WCH CH224D IC. Those are not pin-to-pin compatible chips, and two circuitry were made for the board requiring two BoMs as it’s not just possible to only replace IP2315 by CH224D. But this information did not get to the inventory manager, and once IP2315 was out of stock, he/she believed it would be possible to simply replace IP2315 with CH224D. The unlucky part is that the factory […]

August 10, 2022August 20, 2022 by Ian W MORRISON (Linuxium) - 12 Comments

Beelink SER5 Review – An AMD Ryzen 5 5600H mini PC tested with Windows 11, Ubuntu 22.04

New to arrive in the Beelink SER lineup is the SER5 marketed as a ‘SER PRO’ and features one of last year’s AMD Ryzen 5000 H-series processors typically used in high-performance productivity and gaming laptops. Beelink kindly sent one for review and I’ve looked at performance running both Windows 11 and Ubuntu 22.04. Beelink SER5 Hardware Overview The Beelink SER5 physically consists of a 126 x 113 x 42mm (4.96 x 4.45 x 1.65 inches) square metal case. As an actively cooled mini PC, it uses AMD’s 7 nm Zen 3 Ryzen 5 5600H Cezanne processor which is a six-core 12-thread 3.3 GHz mobile processor boosting to 4.2 GHz with Radeon Graphics. The front panel has an illuminated power button, a 3.5mm headphone jack, a Type-C USB 3.1 port with Alternate Mode, dual USB 3.1 ports, and a reset pin-hole ‘CLR CMOS’. The rear panel includes a gigabit Ethernet port, […]

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

August 9, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Raspberry Pi 4 gets Vulkan 1.2 conformance, Android Vulkan support

Iglia has done more work on the graphics driver for the VideoCore VI GPU found in Raspberry Pi 4 and other Broadcom BCM2711-based hardware with Vulkan 1.2 conformance, and Roman Stratiienko added Vulkan 3D graphics acceleration to Android, or more exactly LineageOS. Raspberry Pi and Iglia have been collaborating together since the launch of the Raspberry Pi 4 SBC to develop a Khronos conformant Mesa 3D graphics driver for the board, and that’s a long-term project that’s been going on for over two years, and not quite finished yet. Here’s a non-exhaustive timeline of the project so far: February 2020 – Raspberry Pi 4 V3DV driver gets OpenGL ES 3.1 conformance, work on Vulkan starts with the basic triangle demo showcased June 2020 – Vulkan driver source code released with many demos working on Raspberry Pi 4 October 2020 – Iglia gives a project update status presentation for Raspberry Pi […]

August 9, 2022August 9, 2022 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ACTAMID M8S – An Intel Pentium N6005 palm-sized PC with dual Gigabit Ethernet, 3x HDMI ports (Crowdfunding)

ACTAMID M8S is a palm-sized 3.4-inch mini PC powered by an Intel Pentium N6005 Jasper Lake processor with up to 16GB LPDDR4 memory, 1TB M.2 2242 SSD. The M8S is bigger than the recently announced 2.7-inch PIX NII mini PC based on the same processor, but that’s for a good reason since it offers more ports with three HDMI outputs, dual Gigabit Ethernet, and three USB 3.0 ports. The mini PC also features WiFi 6 and Bluetooth 5.2 wireless connectivity, a quiet fan, and a 7-color LED backlight for good effects… Win Element Technology Co., Ltd, the Hong Kong company owning the ACTAMID brand, says the mini PC ships preinstalled with an activated version of Windows 11, but also supports Linux distributions such as Ubuntu 20.04. ACTAMID M8S specifications: SoC – Intel Pentium N6005 quad-core processor @ 2.0GHz / 3.3GHz (Turbo) with Intel UHD graphics @ up to 900 MHz; […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications