Raspberry Pi News - Page 114 of 183 - CNX Software

May 4, 2020September 26, 2020 by Jean-Luc Aufranc (CNXSoft) - 28 Comments

Argon One Case Brings All Raspberry Pi 4 Connectors on One Side

Due to its small size, the Raspberry Pi 4 board has Ethernet and USB ports on one side, and micro HDMI ports, AV port, and USB-C port on another side. This may not be an issue for most people, but having all ports on one side may make cable management easier. Argon One case for Raspberry Pi 4 makes that feat possible thanks to an adapter board that brings HDMI and AV ports on the left side of the USB ports, and an extra power expansion board does the same for the USB-C port plus adds a power button. Argon One comes in a kit with the following components: Aluminum top cover, black bottom AR1 power board AR1 AV board with micro HDMI inputs and outputs, AV port input and output Fan Power button Thermal pads for the processor and memory chip for passive cooling via internal heatsinks built into […]

April 30, 2020July 31, 2020 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Raspberry Pi HQ Camera Features a 12MP Sensor, Supports Interchangeable Lenses

The Raspberry Pi Foundation introduced the first official Raspberry Pi camera in May 2013. The $25 camera module came with a 5MP sensor and connected via the board’s MIPI CSI connector. Then in 2016, the company launched version 2 of the camera with an 8MP sensor. The foundation has now launched a much better camera called Raspberry Pi HQ Camera (High-Quality Camera) with a 12MP sensor, improved sensitivity, and support for interchangeable lenses both in C- and CS-mount form factors. The module itself is equipped with a Sony IMX477 sensor, a milled aluminum lens mount with integrated tripod mount and focus adjustment ring, a C- to CS-mount adapter, and an FPC cable for connection to a Raspberry Pi SBC. RPi HQ camera specification: Sensor – 12.3MP Sony IMX477R stacked, back-illuminated sensor; 7.9 mm sensor diagonal, 1.55 μm × 1.55 μm pixel size Output – RAW12/10/8, COMP8 Back focus – Adjustable […]

April 30, 2020April 30, 2020 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

“New” Raspberry Pi 3B v1.2/v1.3 May be Incompatible with Cases with Embedded Heatsink

As we’ve recently seen with Raspberry Pi 4 v1.2, the Raspberry Pi Foundation will sometimes provide new revisions of their boards with small differences or fixes that most users won’t notice, so they will not make announcements about those minor revisions. Somebody on the RPi forums noted there may be a “new version of Raspberry Pi 3B“, and the discussion points out there are actually two such revisions that are mass-produced from various companies. It turns out the Foundation also posted PCN (Product Change Notices) on the product page of their boards, so we can know exactly what has changed and when. The fist PCN for v1.2 board is dated November 1, 2018, and explains the SoC has changed switching from BCM2837 to BCM2837B0 found in Raspberry Pi 3B+ but with frequency limited to 1.2 GHz. The PCN further explains the timing of the change: The new part will be […]

April 29, 2020April 29, 2020 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Connect up to 32 Relays to Raspberry Pi with a Stackable 4-Relay Board (Crowdfunding)

People have been playing with off-the-shelf relays on Raspberry Pi boards ever since it was released in 2012, and over the years, some companies have maybe Raspberry Pi-specific relay boards such as Strawberry4Pi and Pi-OT. Two years ago, Sequent Microsystems introduced a stackable 8-Relay board enabling up to 64 relays to be connected to a single Raspberry Pi board. The 8-relay board only supported 24V/2.5A, and the company is now back on Kickstarter with a 4-relay board with 250V/10A line-switching relays that can offer up to 32 relays by stacking 8 boards connected to one Raspberry Pi board via the 40-pin I/O header. The board comes with four Songle 250V/10A relays, 3-pin pluggable connectors that accept 18 to 22 AWG wires, and a 5V/3A power supply is recommended. If you stack multiple relay board a beefier power supply may be required. Here are some power consumption numbers provided by the […]

April 24, 2020April 26, 2020 by Jean-Luc Aufranc (CNXSoft) - 68 Comments

Raspberry Pi 4 vs ODROID-C4 Features Comparison

Yesterday, Hardkernel launched ODROID-C4 Amlogic S905X3 SBC as an update to ODROID-C2 SBC launched in 2016. We’ve seen the board can compete with Raspberry Pi 4 4GB board thanks to benchmarks released by Hardkernel, but since those boards are so versatile, meaning they can be used in a variety of applications, it’s impossible to benchmark all use cases. One way to find out which board might be right for your application without going through benchmarks is to look at a list of features for each, and that’s exactly what we’ve done in this post. Let’s get straight to the Raspberry Pi 4 (4GB RAM) vs ODROID-C4 comparison table. Features/Specs Raspberry Pi 4B (4GB) ODROID-C4 Release date 24th June 2019 23rd April 2020 SoC Broadcom BCM2711 quad-core Cortex-A72 @ 1.5 GHz (overclockable to 2.0+ GHz) with NEON, FPU Amlogic S905X3 quad-core Cortex-A55 processor @ 2.0 GHz with NEON, FPU, Armv8 Crypto […]

April 20, 2020April 20, 2020 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Getting Started with Qoitech Otii Developer Tool using ESP8266 and Raspberry Pi 4 Boards

Last month, I received Qoitech Otii Arc power supply, power meter, and DAQ unit that aims at helping hardware and software engineers develop energy-efficient products. I’ve now had time to test the unit with an ESP8266 board and Raspberry Pi 4 SBC, so I’ll show how to get started and my overall experience with the hardware and program. Requirements and Initial Setup The unit takes a 9V power supply or micro USB adapter as power input, but power output is done through banana plugs. I did not have any cables with banana plugs so I bought one on eBay for about $5 shipped. This cable is really convenient with output to USB (female connector), crocodile clips, and hook clips. However, as we’ll see below it may not be suitable for all types of loads, and you may have to make your own with a higher rated cable. You’ll need to […]

April 16, 2020April 16, 2020 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

YARC Case Can House a Raspberry Pi Board with one HAT Expansion Board and Up to 3 Hard Drives (Crowdfunding)

There are plenty of enclosures for Raspberry Pi board and other compact x86 or Arm Linux SBCs, but many projects require expansion boards and it’s not always possible to use an off-the-shelf case. That’s with that in mind that Stefano Zorzi and other enthusiasts have created YARC (Yes, Another Raspberry Case), a hexagonal case that supports the most popular single board computers, even when an add-on board – such as a Raspberry Pi HAT – is attached to the board. There’s enough space for up to three 2.5″ hard drives. Those are the boards officially supported (tested?) with the case: Raspberry Pi B +, 2B, 3B, 3B +, 4B, A +, 3A + Hardkernel ODROID C1, C2 AAEON Up Board Asus Tinker board and Tinker board S Radxa Rock Pi 4 Orange Pi PC, Pi PC2, Pi PC Plus Basically any board with compatible mounting holes can be installed in […]

April 15, 2020July 31, 2020 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

Raspberry Pi powered Ventilators and 80+ Open Source Ventilators Listed & Ranked

With the (potential) shortage of ventilators due to COVID-19 pandemic, people have been working together to create cheaper and/or open-source ventilators, and we previously covered a smartphone-powered ventilator, as well as an open-source Arduino ventilator. It should come as no surprise some companies have started to make ventilators powered by Raspberry Pi boards. Raspberry Pi Zero Production Ramped up for Ventilators Tom’s Hardware reports the Raspberry Pi Foundation is specifically ramping up production of the $5 Raspberry Pi Zero because manufacturers are indeed integrating the tiny SBC into ventilators. Eben Upton, CEO and Founder of Raspberry Pi Foundation/Trading, explains: One of the main challenges with rapidly scaling manufacture of products like this is that you may be able to surge production of the air-handling elements, but you still need to provide the control element: often the components you need are on 20-week lead times and (hopefully) we’ll be out of […]