Raspberry Pi News - Page 123 of 183 - CNX Software

August 6, 2019 by Jean-Luc Aufranc (CNXSoft) - 34 Comments

TensorFlow Lite for Microcontrollers Benchmarked on Linux SBCs

TensorFlow Lite microcontrollers benchmark linux SBC

Dimitris Tassopoulos (Dimtass) decided to learn more about machine learning for embedded systems now that the technology is more mature, and wrote a series of five posts documenting his experience with low-end hardware such as STM32 Bluepill board, Arduino UNO, or ESP8266-12E module starting with simple NN examples, before moving to TensorFlow Lite for microcontrollers. Dimitris recently followed up his latest “stupid project” (that’s the name of his blog, not being demeaning here :)) by running and benchmarking TensorFlow Lite for microcontrollers on various Linux SBC. But why? you might ask. Dimitris tried to build tflite C++ API designed for Linux, but found it was hard to build, and no pre-built binary are available except for x86_64. He had no such issues with tflite-micro API, even though it’s really meant for baremetal MCU platforms. Let’s get straight to the results which also include a Ryzen platform, probably a laptop, for […]

August 3, 2019 by Stephen Vicinanza - No Comments

Actcast Combines IFTTT-like Service with AI and Raspberry Pi 3 / Zero

In a report on April 30, 2017, Idein had developed GPGPU accelerated object recognition for the Raspberry Pi platform. That development led to the beta release of the ActCast IoT platform, which was announced on July 29, 2019, and uses deep learning algorithms for object and subject recognition. The program is for use with IoT and AI. The idea is to increase performance and link the system to the web for even more solutions. What it Does The use of physical world information in IoT projects has many applications. Such as a doorbell that sees a person, can then recognize the person. Ultimately letting the user know over the web through a smartphone, the person should be let in. And then the system unlocks the door. So Actcast is a bit like IFTTT with artificial intelligence / computer vision capabilities. Edge Computing Bringing the source of data closer to the […]

July 26, 2019July 26, 2019 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

How to Overclock Raspberry Pi 4 to 2.0 GHz

Yesterday I played with my new “ICE Tower CPU cooling fan” for Raspberry Pi 4 which cools the board just great but is clearly over the top. Regular reader and commenter m][sko mentioned it was possible to overclock Raspberry Pi 4 to 2.0 GHz after a firmware upgrade. That looks like a perfect task for my new fansink! I’ve upgraded both the firmware and operating system:

sudo rpi-update
sudo apt dist-upgrade

1 2	sudo rpi-update sudo apt dist-upgrade

then edited /boot/config.txt as root (sudo) to add the following lines to boost the maximum frequency to 2.0 GHz:

force_turbo=0
arm_freq=2000
over_voltage=6

force_turbo=0

arm_freq=2000

over_voltage=6

Do not try to set force_turbo=1, as while it would allow to further boost the voltage, it will change a fuse in the chip, and it will void your warranty. We can now reboot the board to validate the settings, and check those are applied:

vcgencmd get_config int | grep "arm\|over"
arm_freq=2000
over_voltage=6

vcgencmd get_config int | grep "arm\|over"

arm_freq=2000

over_voltage=6

Good. At idle the frequency is lower, but that normal:

vcgencmd measure_clock arm
frequency(48)=666826176

1 2	vcgencmd measure_clock arm frequency(48)=666826176

Voltage is set to 1.0335V:

vcgencmd measure_volts
volt=1.0335V

1 2	vcgencmd measure_volts volt=1.0335V

[…]

July 26, 2019 by Stephen Vicinanza - 2 Comments

LyRa is a Raspberry Pi CM3L based Handheld Game Console (Crowdfunding)

The LyRa handheld game console is the first of its kind to carry a Raspberry Pi CM3L module inside. We reported on the Raspberry Pi Compute Module 3 Light in early 2017, and its significant features and abilities. The LyRa is being developed by Creoqode who started their campaign on Kickstarter in July 2019. The campaign has already surpassed its funding goal, and it looks like the LyRa will become a reality. The LyRa comes in two versions 1. RTG – Ready-To-Go which is a completely assembled and ready to play handheld game console, computer and entertainment console. 2. DIY – Do-It-Yourself version comes in pieces that can be made into a fully functioning handheld game console in about 15 minutes. The unit features a Raspberry Pi CM3L module which is able to emulate literally hundreds of classic game consoles and games. The unit can attach through HDMI to a […]

July 25, 2019July 25, 2019 by Jean-Luc Aufranc (CNXSoft) - 46 Comments

Raspberry Pi 4 ICE Tower CPU Cooling Fan Tested

Raspberry Pi 4 ICE Tower CPU Cooling Fan Review

Most of us know the Raspberry Pi 4 can get pretty hot, and a heatsink is required if you intend to get the maximum performance out of your board under heavy loads and/or high ambient room temperature. Some even designed a large fansink for Raspberry Pi 4 to prevent the board from throttling. It’s actually a bit over the top, but Seeed Studio sent me a sample of their “ICE Tower CPU cooling fan”, so I’ve had the chance to test it. ICE Tower Cooling Fan Unboxing & Assembly with Raspberry Pi 4 The package tells us it’s made by 52Pi and design specifically for Raspberry Pi 4B/3B+/3B SBC’s. It’s probably not that useful for the last two. The package contains the heatsink with fan attached, screw sets, a screwdrivers, mounting brackets for Raspberry Pi 3/3B+ and RPi 4, as well as a useful user manual. Raspberry Pi 3 and […]

July 23, 2019January 9, 2020 by Ayo Ayibiowu - 6 Comments

N-Fuse Launches Raspberry Pi 3B+ LoRaWAN Gateway with PoE Support

PoE enabled Raspberry Pi 3B+ based LoRaWAN™ Gateway

Raspberry Pi is everywhere, and this small size single-board computer has reshaped technology and STEM education. The launch of the recent Raspberry Pi 4 is evident in the success and continuous growth. The Raspberry Pi 3B+ has seen so much success in several maker’s projects, while not the most powerful SBC in the market, but undoubtedly one of the most popular. I once put together an AI-powered mobile robot using just a Raspberry Pi 3B+, an RPLidar A2, and Raspberry Camera which was way capable of so many things. Another exciting Raspberry Pi end product is the “PoE enabled Raspberry Pi 3B+ based LoRaWAN Gateway” from n-fuse. The PoE enabled Raspberry Pi 3B+ based LoRaWAN Gateway as called by n-fuse is a LoRaWAN gateway based on the Raspberry Pi 3B+, the LRWCCx-MPCIE Concentrator, and the SBCPoE RPI Hat. It supports both the Europe 868Mhz and America 915Mhz frequency (you have […]

July 18, 2019July 17, 2019 by Stephen Vicinanza - 5 Comments

Docker Pi IoT Node(A) Adds LoRa, GPRS and GPS to Raspberry Pi Board

The Docker Pi IoT Node(A) is the latest addition to the Docker Pi series of modules meant to enhance IoT capability and expand on the Raspberry Pi family of SBCs. Although it is mountable on the Raspberry Pi SBC, the HAT form factor allows it to be used with other similar single board computers such as Rock64 board. The Docker Pi IoT Node(A) supports GPS/BDS (Beidou), GSM, and LoRa. The add-on board interfaces to the host over I2C, in order to control LoRa & GSM connectivity, as well as the GPS/BDS module through SC16IS752 chip. There are a number of code examples and instructions that can be found on the Wiki. The unit can also be controlled directly without programming, and all the GPIO pins are extended so the board can stack on other HAT compatible boards, in appropriate layers. Specifications GPRS section Low power consumption, standby sleep current <1mA […]

July 16, 2019July 16, 2019 by Stephen Vicinanza - No Comments

PicoLog 6 Beta supports Raspberry Pi 4, 3B and 3B+

One of the most popular computer platforms, Raspberry Pi has not been supported for Pico’s advanced datalogging software, up until now. The PicoLog 6 datalogging software is now compatible with Raspbian Stretch or later OS. The software has been designed for quick access to simple or complex acquisitions, and enabled to record, analyze or view data of almost any type. TC-08 Thermocouple Datalogger with Raspberry Pi 3 board Real Power It is essentially the same software that runs on Windows, macOS, and Linux, with a few differences to take advantage of the capability of the lower-powered Arm processors. Producing a powerful datalogger for the Raspberry Pi SBC platform. The PicoLog 6 is optimized for Raspbian Stretch and runs the Raspberry Pi 4, 3B and 3B+ SBC’s. The core of the utility is an easy to use visual interface that allows for an almost out-of-box use to the program. Features Making […]