Raspberry Pi News - Page 122 of 183 - CNX Software

September 2, 2019April 26, 2020 by Jean-Luc Aufranc (CNXSoft) - 26 Comments

Khadas VIM3 Linux Benchmarks and Comparison to Raspberry Pi 4

I received Khadas VIM3 Amlogic A311D SBC in early July and started testing it with Android running some benchmarks and playing games last month. I was impressed by graphics performance and overall benchmark results in Android, especially the results I got with a heatsink matched Khadas own results with heatsink + fan. So I installed the latest Ubuntu 18.04 available at the time (July 19) in order to repeat benchmarks in Linux and see how it goes. System info in Ubuntu 18.04:

khadas@Khadas:~$ cat /etc/lsb-release 
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"
khadas@Khadas:~$ uname -a
Linux Khadas 4.9.179 #73 SMP PREEMPT Fri Jul 19 09:56:46 CST 2019 aarch64 aarch64 aarch64 GNU/Linux
khadas@Khadas:~$ df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            305M     0  305M   0% /dev
tmpfs           187M  9.5M  177M   6% /run
/dev/rootfs      15G  2.6G   12G  19% /
tmpfs           931M     0  931M   0% /dev/shm
tmpfs           5.0M  4.0K  5.0M   1% /run/lock
tmpfs           931M     0  931M   0% /sys/fs/cgroup
tmpfs           187M   12K  187M   1% /run/user/1000
khadas@Khadas:~$ free -m
              total        used        free      shared  buff/cache   available
Mem:           1861         358        1100          10         402        1479
Swap:           930           0         930

khadas@Khadas:~$ cat /etc/lsb-release

DISTRIB_ID=Ubuntu

DISTRIB_RELEASE=18.04

DISTRIB_CODENAME=bionic

DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS"

khadas@Khadas:~$ uname -a

Linux Khadas 4.9.179 #73 SMP PREEMPT Fri Jul 19 09:56:46 CST 2019 aarch64 aarch64 aarch64 GNU/Linux

khadas@Khadas:~$ df -h

Filesystem Size Used Avail Use% Mounted on

udev 305M 0 305M 0% /dev

tmpfs 187M 9.5M 177M 6% /run

/dev/rootfs 15G 2.6G 12G 19% /

tmpfs 931M 0 931M 0% /dev/shm

tmpfs 5.0M 4.0K 5.0M 1% /run/lock

tmpfs 931M 0 931M 0% /sys/fs/cgroup

tmpfs 187M 12K 187M 1% /run/user/1000

khadas@Khadas:~$ free -m

total used free shared buff/cache available

Mem: 1861 358 1100 10 402 1479

Swap: 930 0 930

I decided to install armbianmonitor to draw some nice temperature charts as I did with Raspberry Pi 4:

wget https://github.com/armbian/build/raw/master/packages/bsp/common/usr/bin/armbianmonitor
sudo cp armbianmonitor /usr/bin/
sudo chmod +x /usr/bin/armbianmonitor
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 2C0D3C0F
sudo wget http://goo.gl/vewCLL -O /etc/apt/sources.list.d/rpimonitor.list
sudo armbianmonitor -r

wget https://github.com/armbian/build/raw/master/packages/bsp/common/usr/bin/armbianmonitor

sudo cp armbianmonitor /usr/bin/

sudo chmod +x /usr/bin/armbianmonitor

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 2C0D3C0F

sudo wget http://goo.gl/vewCLL -O /etc/apt/sources.list.d/rpimonitor.list

sudo armbianmonitor -r

But I had some error during installation:

sudo armbianmonitor -r
Installing RPi-Monitor. This can take up to 5 minutes. Be patient please/usr/bin/armbianmonitor: line 189: /etc/armbian-release: No such file or directory

Now you're able to enjoy RPi-Monitor at http://192.168.1.8:8888

sudo armbianmonitor -r

Installing RPi-Monitor. This can take up to 5 minutes. Be patient please/usr/bin/armbianmonitor: line 189: /etc/armbian-release: No such file or directory

Now you're able to enjoy RPi-Monitor at http://192.168.1.8:8888

And while I can load the webpage with top menu appearing, it won’t show any data, as its name implies it may only work in Armbian. SBC Bench on Khadas VIM3 Let’s download SBC bench:

wget https://raw.githubusercontent.com/ThomasKaiser/sbc-bench/master/sbc-bench.sh

1	wget https://raw.githubusercontent.com/ThomasKaiser/sbc-bench/master/sbc-bench.sh

Note that I had […]

September 2, 2019September 1, 2019 by Siji Sunny - 2 Comments

Real-Time Performance and Health Monitoring Using Netdata

Netdata is a real-time open source monitoring tool, that generates hundreds of metrics of performance and health monitoring parameters. Netdata is capable of visualizing this data with real-time capabilities along with alerts and notifications. This monitoring agent can be installed in all variant of Linux systems, Mac OS, FreeBSD and in Raspberry Pi . Netdata provides options for archiving the metrics to a remote server by using TimeSeries Databases and processing engines, and can be visualized using Grafana or other tools. Architecture Overview Metrics collector Fetches various system & health monitoring parameters (uptime, CPU load, CPU usage, RAM utilization, disk usage etc.) . Fetches application metrics including web servers, databases, containers, etc… Netdata’s Internal plugins collect most of the metrics from standard Linux system parameters such as /proc, /sys and other Linux kernel sources External plugins contains ready to use plugins developed by using other programing language and interfaced to […]

August 31, 2019 by Stephen Vicinanza - 6 Comments

Pi-oT Raspberry Pi Add-on Board Targets Commercial & Industrial IoT Automation (Crowdfunding)

USA Based Startup Builds RPi Add-on Pi-oT, a Cleveland based startup has launched a Kickstarter campaign for a Raspberry Pi add-on for commercial and industrial IoT automation. The unit is a full mountable chassis with fan and DIN-rail that extends the Pi’s GPIO with 26-pin terminal connectors and provides 5x relays, 8x ADCs, and power outputs. We have reported on a variety of uses for the Raspberry Pi SBC, from home automation to development in IoT, to hobby projects, and in education settings. It is not surprising to see an automation module developed for IoT industrial applications around the popular and powerful SBC. The Choices The Kickstarter campaign has passed its low initial target and is set to ship at the end of October. There is an early launch discount on the unit’s price of $40 for commercial and $50 for industrial backers. That early bird type special is 15% […]

August 30, 2019 by Jean-Luc Aufranc (CNXSoft) - 19 Comments

Using Sony PS3 Eye Camera as an Inexpensive Microphone Array

Almost exactly two years ago to the day, we published an article showing how microphone arrays performed against a single USB microphone, and the latter started to have a poor wake word detection success rate at around 3 meters array even in a silent room, and it got worse with white noise or background music, while the microphone arrays would pick up the wake word with a much higher success rate in all conditions. The price of smart audio development kits varies a lot from $500 for Intel Speech Enabling Developer Kit to $129 for an Allwinner R18-based 3-Mic Far-Field Amazon AVS Development Kit, and $99 for ReSpeaker Core v2. If you’ve already got a Raspberry Pi 3/4 board, you can get cheaper options such as ReSpeaker 4-Mic Array for $25, but nothing beats the price of Sony PS3 Eye camera that comes with a 4 microphone array and sells […]

August 16, 2019August 16, 2019 by Stephen Vicinanza - 14 Comments

CutiePi Open Source Tablet uses Raspberry Pi Compute Module 3

The announcement of the CutiePi, an open source tablet-based on the Raspberry Pi Compute Module 3 comes a bit late for the Pi-based tablet/laptop space. We have reported on some of the more versatile tablets using the Raspberry Pi platform, the Diskio Pi 13.3” DIY Tablet and the RasPad tablet kit, with a few more Raspberry Pi-based tablet/laptop kits also listed in the same article. Timeline and Pricing CutiePi Tablet has no firm release date, but the company is saying late 2019 for launch. The development team is also saying everything is subject to change, but look for the pricing to be USD $150 – $250. Click to Enlarge How CutiePi is Different The tablet is different in its thinner design and in the software designed specifically to use Linux Raspbian OS for a touch screen platform. There are readily available source code and case plans for the ambitious developer […]

August 15, 2019August 15, 2019 by Ayo Ayibiowu - 8 Comments

PiVoyager is a UPS for the Raspberry Pi With a Real-Time Calendar Clock

PiVoyager: the smart UPS for the Raspberry Pi.

The Raspberry Pi is a powerful SBC (Single Board Computer), and aside from being used for everyday computing stuff, the Raspberry Pi can be embedded as the brain of various projects. Using the Raspberry Pi for standalone projects do create some concerns about power. How do I power the Pi? Should I get a power bank? Or maybe I need a longer wired connector. If powering your Raspberry Pi based project has always being a concern to you, then you don’t have to worry about it again with the introduction of the PiVoyager. The PiVoyager is an uninterruptible power supply (UPS) for the Raspberry Pi specially designed to work with standard Li-Ion or LiPo batteries. It is shaped in the form a Pi Zero HaT making it fully compatible with PiZero form factor, but nevertheless, it will still work with any Raspberry-PI having the conventional 40-pin header found in the Pi […]

August 7, 2019August 7, 2019 by Stephen Vicinanza - 12 Comments

MakerPower Solar Power Supply/Charger for IoT & Embedded Systems Supports Lead-acid Batteries (Crowdfunding)

Danjuliodesigns llc. A boutique embedded systems design firm run by engineer and inventor Dan Julio has set up crowdfunding for the makerPower Solar power supply/charger for intelligent power supply just about anywhere and in any climate. A comprehensive device structured to IoT and embedded systems, where sometimes a remote camera or other device needs power all the time. The power source is a solar panel which can charge a standard lead-acid battery (USA availability only) We reported on a solar input board PiJuice battery HAT and although there are other solar input devices on the market, such as the PiJuice, for use with SBC’s such as Raspberry Pi, the makerPower Solar functions at a higher level, incorporating intelligent power control and functioning. The board can be source powered by solar panel through a standard lead-acid battery, rather than a Li-Po or Li-Ion. The inventor felt a source should carry as […]

August 7, 2019August 11, 2019 by Ayo Ayibiowu - 1 Comment

A Compact Machine Learning Accelerator HAT for your Raspberry Pi

AI for the Edge has been a promising playing field where several players are pushing for. Cloud computing has made it possible to train complex machine learning models for various application, although this seems to be working fine, the performance or the possibility of deploying AI applications on the Edge is enormous. AI on the Edge is expected to help reduces the latency involved in the roundtrip to the cloud, saves the bandwidth and cloud storage costs for enterprises, deploy ML models faster, and build robust, intelligent applications. Generally, Edge devices like the Raspberry Pi, Arduinos, and other embedded boards usually can’t run powerful AI applications. They have limited resources and computing power. Fortunately, this is changing with the introduction of AI Accelerators; modern processors that help assist the edge devices by taking over the complex mathematical calculations needed for running AI models. One of such AI accelerator processor is […]