4.2-inch ESP32-based e-Paper display ships with a 3D printed enclosure (Crowdfunding) ePaper Display

We’ve covered a fair amount of connected e-Paper/e-Ink displays based on ESP32 WiFi & Bluetooth SOC including several Inkplate displays, with the latest Inkplate 6Plus model including a touchscreen, TTGO T5 displays with small sizes, or even the fully enclosed M5Paper ESP32 IoT development kit with a 4.7-inch touchscreen e-Paper display. There’s also Watchy ESP32 smartwatch with a 1.54-inch display if you really need something small. But here’s another option courtesy of Rohit & Prasad, two young engineers from India, with the 4.2-inch ESP32-powered e-Paper display that ships with an optional 3D printed enclosure. display specifications: Wireless module – ESP32-WROOM-32 module with ESP32 dual-core processor, 4 MB SPI flash, 2.4 GHz WiFi 4 & Bluetooth LE connectivity Storage – MicroSD card slot for storing images, files, etc Display – 4.2″ monochrome e-Paper display with 400 x 300 resolution; 3s for full refresh; partial refresh supported USB – 1x Micro USB port for charging and programming Expansion – 26-pin […]

Picovoice offline Voice AI engine now works on Arduino

PicoVoice Arduino

Last year, I wrote about Picovoice support for Raspberry Pi enabling custom wake-word and offline voice recognition to control the board with voice commands without relying on the cloud. They used  ReSpeaker 4-mic array HAT to add four “ears” to the Raspberry Pi SBC. I also tried to generate a custom wake-word using the “Picovoice Console” web interface, and I was able to use “Dear Master” within a few minutes on my computer. No need to provide thousands of samples, or wait weeks before getting a custom wake-word. It’s free for personal projects. But the company has now added Picovoice to Arduino, or more exactly  Arduino Nano 33 BLE Sense powered by a  Nordic Semi nRF52480 Arm Cortex-M4F microcontroller, and already equipped with a digital microphone, so no additional hardware is required for audio capture. To get started, you’d just need to install the Picovoice Arduino library, load the sample in the Arduino IDE, and control the LED on the […]


Modelplace.AI is an app store for OpenCV compatible AI models

OpenCV open-source computer vision library is used in a wide variety of projects and products, and last year, the community also launched the OpenCV AI Kit (OAK) Myriad X-based hardware solution for computer vision. However there’s a learning curve to use the library, especially in combination with artificial intelligence models, and it can be challenging and time-consuming to newcomers. So in order to broaden the reach of the solution, OpenCV has now introduced Modelplace.AI, an app store/marketplace for AI models working with the OpenCV library. The AI model marketplace is a store and try-before-you-buy service for artificial intelligence models, many of which are certified to work with the OpenCV AI Kit. There are currently over 40 models for detection (e.g. person, pedestrian…), classification, segmentation (e.g. extraction of objects from a scene), pose estimation, people counting, text detection, tracking, and more. Right now all models are free, but developers will be able to add premium models as well to get paid […]

Xilinx announces Versal AI Edge Series with Cortex-A72 & R5 cores, FPGA fabric

Xilinx Versal AI Edge

Edge AI solves the latency and security issues through on-device AI acceleration for optimal computations at a low power supply. Xilinx announces its Versal AI Edge Series which is 4th member of the Adaptive Compute Acceleration Platform (ACAP) family. The versal series consists of seven models ranging from VE2002 to VE2802 with the processor fabrication on 7 nm silicon technology. Talking more about ACAP, it is a platform that provides a combined essence of a processor and FPGA. The processing features efficient memory and I/Os, whereas programmable arrays allow logical control over the hardware. Also, as Xilinx specializes in FPGA products, the additional support of computational features makes the ACAP hardware even more flexible and dynamic. The Versal AI Edge series features different types of engines for specific functionalities in terms of adaptable, scalar, and intelligent engines. The seven processor models vary with respect to engine and platform specifications. However, the scalar engine features are the same for all the […]

Radxa Zero SBC – A powerful quad-core alternative to Raspberry Pi Zero W

Radxa Zero

Radxa Zero SBC follows Raspberry Pi Zero W form factor, but thanks to an Amlogic S905Y2 quad-core Cortex-A53 processor clocked at up to 2.0 GHz offers much higher performance, which Radxa says corresponds to about 70% of Raspberry Pi 4 CPU performance. The tiny Arm Linux board comes with up to 4GB RAM, 16GB eMMC flash, and either AP6212 or AP6256 wireless module. plus all interfaces from Raspberry Pi Zero W, but with a twist as the mini HDMI port is replaced by a micro HDMI port, and USB-C ports are used instead of micro USB ports. Radxa Zero preliminary specifications: SoC – Amlogic S905Y2 quad-core Cortex-A53 processor @ up to 2.0 GHz with Arm Mali-G31 MP2 GPU System Memory – 512MB RAM, 1GB, 2GB, or 4GB LPDDR4 Storage – MicroSD slot, optional 8GB or 16GB eMMC flash Video Output – micro HDMI port up to 4Kp60 Connectivity Ampak AP6212 module – 802.11b/g/n WiFI 4 up to 72 Mbps plus […]

GMK NucBox Review – A palm-sized Windows 10 mini PC

GMK NucBox Power Adapter

GMK released their diminutive mini PC called the NucBox a while ago however they have recently updated the BOM with a new fan and WiFi module together with changing their logo from GMK to GMK TEC. GMK sent the new NucBox for review and the results from various testing are detailed below. Hardware Overview The NucBox physically consists of a 62 x 62 x 42mm (2.44 x 2.44 x 1.65 inches) rectangular metal case with a plastic top and base plate. As an actively cooled mini PC, it uses Intel’s 14 nm J4125 Gemini Lake Refresh processor which is a quad-core 4-thread 2.00 GHz processor boosting to 2.70 GHz with Intel’s UHD Graphics 600. The front has just the power button whilst the rear includes two USB 3.0 ports, an HDMI port, and a Type-C USB port for power. The left side has a microSD card slot and a headphone jack and there is nothing on the right side. The […]


NVIDIA Jetson AGX Xavier Industrial module adds lockstep Cortex-R5 cluster, ECC RAM, and more

NVIDIA Jetson AGX Xavier Industrial

NVIDIA Jetson AGX Xavier is the most powerful module from the Jetson family packing 32 TOPS of AI inference performance. But with some customers wanting to use the embedded AI computer in harsher conditions, the company has now introduced a rugged version of the module with NVIDIA Jetson AGX Xavier Industrial. Some changes included a slightly lower performance (30 TOPS) to cater for an expanded temperature range, a dual-core Cortex-R5 cluster in lockstep, ECC memory, and compliance with shock and vibration standards. NVIDIA Jetson AGX Xavier Industrial specifications with bold highlights showing differences / new features: CPU – 8-core NVIDIA Carmel Arm v8.2 64-bit CPU with 8MB L2 + 4MB L3 GPU – NVIDIA Volta architecture with 512 NVIDIA CUDA cores and 64 Tensor cores for up to 20 TOPS (INT8) (Note: the standard version support 22 TOPS) DL Accelerator – 2x NVDLA accelerators for up to 10 TOPS (INT8) Vision Accelerator – 2x 7-Way VLIW Vision Processor Safety Cluster […]

Windows 11 build leaked, Windows 10 support ending in 2025

Windows 11

There’s been some rumors about Windows 11 – codename Sun Valley – in the last couple of weeks, but now I suppose that’s official as a leaked build of Windows 11 has made the rounds in the press, and Microsoft also announced Windows 10 support will be ending in October 2025 both for the Home and Pro version of the operating systems, as well as Windows 10 IoT Enterprise. Websites that tested the Windows 11 leaked build, including XDA Developers and NotebookCheck, report it’s very much like Windows 10, but with the scrapped Windows 10X shell. Since Microsoft is scheduled to announced Windows 11 on June 24, the user interface and experience should be pretty close to the actual release. The most obvious visual change compared to Windows 10 is that the taskbar is now centered. Other cosmetic changes include Windows and menus with rounded corners, a new Windows logo,  Windows Search and File Manager user interfaces have been revamped […]