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January 29, 2024July 5, 2024 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

SunFounder GalaxyRVR review – An Arduino programmable Mars Rover-like robot for education

SunFounder sent us a GalaxyRVR 6-wheel robot for review. It looks like NASA’s Mars Rover robots but targets the education market with an Arduino UNO R3 compatible board and an ESP32-CAM board for WiFi connectivity and video capture. The GalaxyRVR robot kit can transmit video signals over WiFi to explore planet Earth with your mobile device or tablet and the camera can be adjusted up and down thanks to a servo motor. The robot gets its power from a solar panel coupled with a battery and features sensors such as obstacle avoidance and ultrasonic modules. NASA’s Mars Rover exploration robots NASA is currently using the Perseverance rover, also known as Percy, as the latest planetary exploration robot to land on Mars. It is designed to explore the Jezero Crater as part of NASA’s Mars 2020 mission. In addition to its scientific instruments, Perseverance also carries Ingenuity, a small experimental Martian […]

January 14, 2024January 14, 2024 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

How I “fixed” the display on Lichee Console 4A terminal

When I wrote a hands-on post about Lichee Console 4A RISC-V development terminal I noted the display would sometimes have strange effects or simply go black. I’ve now fixed the issue, and I was just probably unlucky since the issue must be rare, but I’ll still document it in case somebody encounters a similar problem and for fun! First, the video below shows what I would see on my terminal after using it for a few minutes. Since then, the display has gone completely dark, and all I see is the backlight, but I can still access the device through an SSH terminal. It looks like a bad connection issue, but I still contacted Sipeed and they told me it must have been the display connector. So I turned off the device and reopened the enclosure to remove and reinsert the cable for the display as shown in the photo […]

January 8, 2024 by Kumpee Teeravech - 2 Comments

Review of Elecrow’s 3.5-inch and 7.0-inch ESP32 display modules using Arduino programming

Using the ESP32 7.0-inch display as a dashboard

Hello, I’m excited to review the ESP32 display modules and HMI touchscreens from Elecrow with sizes ranging from 2.4 to 7.0 inches. For this review, Elecrow kindly provided me with both 3.5-inch and 7.0-inch models. While their screens differ in size, both modules share several components, such as the ESP32 microcontroller, making them adaptable options for a variety of projects. The Elecrow 7.0-inch display module is powered by the ESP32-S3-WROOM-1-N4R8 module equipped with an ESP32-S3 dual-core LX6 32-bit microprocessor, 4 MB of flash, 384 kB of ROM, and 512 kB of SRAM. This microcontroller supports both WiFi and Bluetooth for wireless communication. The 7.0-inch display itself is a capacitive touch screen with a resolution of 800×480 pixels. The display is controlled by the EK9716BD3/EK73002ACGB driver and is compatible with LVGL for additional functionality. In the case of the 3.5-inch display module, the main difference is the use of the ESP32-WROOM-32-N4 […]

December 19, 2023December 20, 2023 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

iKOOLCORE R2 (Core i3-N300) system review – Part2: Proxmox VE, Ubuntu 22.04, pfSense

iKOOLCORE R2 Ubuntu Promox VE dual display

In the first part of iKOOLCORE R2 mini PC & router review, I had a look at the hardware with an unboxing and a teardown of the Intel Core i3-N300 Alder Lake-N computer and also noticed the device booted to a UEFI shell. So for the second part of the review, I will report my experience installing Proxmox VE on the iKOOLCORE R2 and setting up and using Ubuntu 22.04, pfSense 2.7.2, and OpenWrt 23.05 virtual machines, making sure I can still use a physical display, keyboard, and mouse with Ubuntu while pfSense firewall is running. As a side note, the previous generation iKOOLCORE R1 mini PC that was sent to Ian for review with Proxmox VE and various virtual machines preinstalled OpenWrt, Debian 11, and Windows 10 Enterprise LTSC set to Chinese language by default. As I understand it, iKOOLCORE still does that for the Chinese market, but not […]

December 17, 2023December 17, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

How to use a monitor and USB mouse/keyboard in Promox VE on an Intel Alder Lake-N mini PC

Intel Core i3-N300 Alder Lake-N Ubuntu 22.04 Promox VE passthrough

We’ve started to see several Alder Lake-N platforms acting both as a mini PC and a router or network appliance with products such as iKOOLCORE R2 or CWWK x86-P5 which features not only the usual HDMI, USB, and single Ethernet port, but come with multiple Ethernet ports making them ideal to run Proxmox VE to simultaneous run a desktop OS such as Ubuntu 22.04 or Windows 11 and a headless network OS such as pfSense or OpenWrt. I’m currently reviewing iKOOLCORE R2 mini PC that comes with four 2.5GbE ports and I could install Ubuntu 22.04 Desktop, pfSense 2.7.1, and OpenWrt 23.05 relatively easily, but the Ubuntu desktop is only visible in the Proxmox VE dashboard and the HDMI display physically connected to the mini PC only shows Proxmox VE login prompt. So at this point, I learned that I had to enable PCIe passthrough for the GPU in Proxmox […]

August 22, 2023August 22, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Getting started with VOIPAC IMX8M Industrial development kit (Yocto Linux SDK)

VOIPAC IMX8M Developer Kit Audio Testing

Last month I went through an unboxing of the VOIPAC iMX8M Industrial Development Kit with some specs and a quick try with the pre-loaded Yocto 3.1 Linux image. The kit is quite versatile with plenty of interfaces and headers, and eventually, it will support Android 12 and Ubuntu 22.04 LTS. but in the meantime, I played a bit with the Yocto Linux SDK for the NXP i.MX 8M board and will report by experience getting started with VOIPAC IMX8M Industrial development kit. WiFi antennas installation But before checking out Yocto Linux, I will install the two WiFi antennas since I did not do it last time around. We can attach the SMA connectors to the two metal plates on the side of the board securing them with the provided nuts and spacers. The other side of the antenna’s cable comes with a tiny u.FL (or is it MHF4) connector and […]

August 20, 2023August 20, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Setting up a private LoRaWAN network with WisGate Connect gateway

RAKwireless Wisgate Connect Gateway Review with Link.ONE devit

In this guide, we’ll explain how to set up a private LoRaWAN network using the Raspberry Pi CM4-based RAKwireless’ WisGate Connect gateway and Docker or Portainer to install NodeRED, InfluxDB, Grafana, and other packages required to configure our gateway. The WisGate Connect is quite a versatile gateway with Gigabit and 2.5Gbps Ethernet plus several optional wireless connectivity options such as LoRaWAN, 4G LTE, 5G, WiFi 6, Zigbee, WiFi HaLoW, and more that can be added through Mini PCIe or M.2 sockets, expansion through WisBlock IO connectors and a 40-pin Raspberry Pi HAT connector. We’ll start by looking at the gateway features in detail, but if you already know all that, you can jump to the private LoRaWAN network configuration section. WisGate Connect unboxing, specifications, and teardown RAKwireless sent us a model with a Raspberry Pi CM4 equipped with 4 GB of RAM and 32 GB of eMMC memory, GPS and […]

July 7, 2023July 8, 2023 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

“Fixing” WiFi 6 on Linux in Alder Lake-N mini PCs (Intel N95, N100, Core i3-N300…)

Alder Lake-N mini PCs based on Processor N95, N100, and Core i3-N300/N305 SoCs are pretty popular these days due to their good performance/price proposition, and when Ian reviewed the Beelink EQ12 mini PC with an Intel N100, he seemed pretty happy about it, except the WiFi 6 and Bluetooth 5.2 AX101 module was not recognized in Ubuntu and other Linux distributions. It’s not an isolated issue, as one person commented WiFi 6 and Bluetooth were not working in Linux on a Beelink mini PC with the N100 in an article about the T9 Plus, and I found out many people complained about the lack of Linux drivers for the AX101 on Intel community forums. They also left various solutions some of which work, some don’t. If you are using Ubuntu or Debian, the easiest way seems to update the kernel to the latest Linux 6.4 as follows:

sudo add-apt-repository ppa:cappelikan/ppa
sudo apt update && sudo apt full-upgrade
sudo apt install mainline

sudo add-apt-repository ppa:cappelikan/ppa

sudo apt update && sudo apt full-upgrade

sudo apt install mainline

This will […]