И снова модернизация блока питания Dazheng PS-305D

Спустя 10 лет после публикации первой статьи по доработке лабораторного блока питания Dazheng PS-305D (известного так же как Ya Xun Ps-305d и Yizhan PS-305D, а так же, наверняка, и под другими именами), пришлось снова заняться этим аппаратом. У китайского ЛБП обнаружилась проблема с переменными резисторами, которые начали “шуршать”, от чего выставляемые значения тока и напряжения начали “скакать”. После чего резисторы были заменены на новые, модные, точные и многооборотистые с одной неназываемой китайской барахолки. С этими новыми резисторами - оригинальными, качественными и практически японскими (эти характеристики взяты из описания товара и...

TrolSoft

Posted at 2023-04-20 16:33:12 | Electronics | read on

Cynthion Hardware Design Update

Note: This is a crosspost of a Cynthion update on Crowd Supply: https://www.crowdsupply.com/great-scott-gadgets/cynthion/updates/cynthion-hardware-design-update.

We’ve completed the Cynthion r0.6 design! As mentioned in previous updates we needed to modify the design to accommodate new components due to supply chain issues. In this revision additional changes were made to resolve some problems beta testers identified with both power input and power output.

Issues Found During Beta Testing

Power input issues: When you plug Cynthion into a host computer, it is expected that Cynthion powers up and that the host computer will recognize that a device has been attached. Our beta testers found a couple of...

Great Scott Gadgets

Posted at 2023-04-14 00:00:00 | Electronics | read on

Linkdump: April 2023

The CRUMB Circuit Simulator, a breadboard simulator Deep Fried Coffee Beans Conserve the Sound: “Your Museum for endangered sounds.” Furby source code What is the price of a Big Mac across the country? Floppy disk costumes for SD cards De visdeurbel (Fish Doorbell; Dutch language.) When a fish in the canals needs the lock opened, you can send the lock keeper a photo to let them know. Near infrared, in situ imaging of chips: An inexpensive method to see inside certain types of integrated circuits. An Aperiodic Monotile, and a talk about it, from the National Museum of Mathematics. The Tabloid Programming languate, and an implementation in Racket. The Electronics...

Evil Mad Scientist Laboratories

Posted at 2023-04-13 16:07:56 | Electronics | read on

A new design

As it was teased with the March update and the December blog post of last year, there is a community website redesign being worked on. Launched at beta.pine64.org we’re proud to give a very early insight of what the redesign currently looks like.

PINE64

Posted at 2023-04-13 00:00:00 | Electronics | read on

PineTab-V and PineTab2 launch

The PineTab2 and PineTab-V pre-orders begin on April 13th. Both tablets feature a 1200x800 10.1” IPS LCD panel with wide viewing angles, a sturdy metal metal chassis, two USB-C ports (1x USB 3.0, 1x USB 2.0 with charging), a digital video out port, a front 2MPx and rear 5MPx camera as well as a 6000mAh battery.

PINE64

Posted at 2023-04-10 00:00:00 | Electronics | read on

Packetry: Building a High Performance Protocol Analysis Tool

https://www.youtube-nocookie.com/embed/ySVuYXfH78U

In a previous update, we introduced our work on Packetry, our new front-end software for using Cynthion to capture and analyze USB traffic on the wire. In this update, we’re going to talk a bit more about the design of that software and explain some of the work we’re doing to make it as fast and easy to use as possible.

The Need for Speed

One of the most exciting features of Cynthion is its ability to serve as a protocol analyzer, letting you intercept and capture USB traffic on the wire, in the field, from real devices.

Fully benefiting from this feature...

Great Scott Gadgets

Posted at 2023-04-07 12:00:00 | Electronics | read on

March Update: Tablet Bonanza!

We end the first quarter of the year with news that Star64 will be available for purchase on April 4th and that the PineTab2 and PineTab-V(ery good!) will launch the following week on April 11th.

PINE64

Posted at 2023-04-01 00:00:00 | Electronics | read on

New 4.3″ and 5″ TFT Displays

4.3″ TFTs in Two Resolutions

We recently brought up a variety of 4.3″ TFT displays. With two resolution options (either 800×480 or 480×272) and three touch options (no touch, resistive touch, and capacitive touch) that’s six new mid-sized TFTs. All of these displays have bright backlights making them sunlight readable and are IPS.

The new 4.3″ Displays: 800×480 4.3″ TFT Display Module 800×480 4.3″ Resistive Touchscreen TFT Display 800×480 4.3″ Capacitive Touchscreen TFT Display 480×272 4.3″ TFT Display Module 480×272 Resistive Touchscreen TFT Display 480×272 4.3″ Capacitive Touchscreen TFT Display Capacitive Touch MIPI Display

Another new display is the 720×1280 5″ Capacitive Touchscreen TFT Display. This display has overhanging...

Crystalfontz

Posted at 2023-03-30 22:10:50 | Electronics | read on

Wuthering Bytes 2023 First Speakers Confirmed

Technology festival Wuthering Bytes is set to return to Hebden Bridge in West Yorkshire – ten years on from its inaugural event. Returning for the first time since 2019, the week-long event will kick off with Festival Day on August 25th. It will bring together hobbyists, engineers, creators, makers and doers – and invite them to take part in a series of talks, workshops and live demonstrations designed to feed their curiosity in technology.

Confirmed speakers include Matthew Venn, a science and technology communicator and electronic engineer, who will be delivering a talk on how to design your own open source...

AB Open

Posted at 2023-03-21 20:14:06 | Electronics | read on

HackRF One Availability Update

In December of 2022, we published a post about the HackRF One shortage and the hardware revision our engineering team completed so that we could continue manufacturing HackRF One. This hardware revision was necessary because we had difficulty sourcing critical components during the global chip shortage, mainly MAX2837- the RF transceiver IC used in every revision of HackRF One before r9. At the time of that post, we had a significant backlog of orders, and we were uncertain about how long production would take with COVID-19 slowing down operations at the factory in China. Today, we have good news: production...

Great Scott Gadgets

Posted at 2023-03-20 12:00:00 | Electronics | read on