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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.
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 DisplayAnother new display is the 720×1280 5″ Capacitive Touchscreen TFT Display. This display has overhanging...
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...
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...
Free Stuff - February 2023
The February recipient for the Great Scott Gadgets Free Stuff Program is Mihajlo. Mihajlo is a student in Serbia who will be studying Electrical Engineering in college. He plans to use the HackRF One we are sending him to teach people in his community about SDR, RF, LRPT images from NOAA, and other fun signals. Mihajlo is also an open source contributer to projects focused on providing simple scripts and instructions to set up low-cost base stations. We are proud to support Mihajlo in his projects as he gives back to his community in so many ways!
Free Stuff - January 2023
The January recipient for the Great Scott Gadgets Free Stuff Program is Guillermo. Guillermo is from Spain. He had a career in computer security about ten years ago before switching to another career. He’s back now and excited to use the HackRF One we are sending him to explore interesting topics like RF, Lora, Zigbee, and BLE. We are happy to support Guillermo on his journey back into computer security.
February update: things are taking shape
Let me start by apologizing to everyone for skipping yet another monthly community update. This has largely been my fault as I was rather busy in January and following FOSDEM at the start of February I found myself occupied with things related to the EU store.
Wuthering Bytes Returns for its 10-Year Anniversary, and We’d Love You to be Involved
AB Open is proud to announce the return of Wuthering Bytes, the three-day festival celebrating interesting and inspiring technology now celebrating its 10-year anniversary – and we’re looking for participants to run events or give presentations.
After global and local conditions caused a three-year hiatus, AB Open is now preparing for Wuthering Bytes’ 10-year anniversary with three days of events – including the always-popular Festival Day on Friday the 25th of August, followed by the two-day Open Source Hardware Camp on Saturday the 26th and Sunday the 27th of August. As with previous years, there is room in the schedule for...
Тестовые пины
Проектируя плату я всегда оставляю множество контрольных точек. Это удобно для отладки, а денег и места они почти не требуют. Всегда, вот всегда, я делал петлю для земли. Просто оставлял рядом два отверстия и вставлял туда проволочную петлю, чтобы удобно было цеплять крокодил осциллографа. Но в нее неудобно тыкать щупом, если надо просто измерить мультиметром напряжение от земли.
Для сигналов можно оставить просто луженую переходку, вскрытую от маски. Или даже отдельный пустой пад. В него удобно тыкать иголкой мультиметра или осциллографа, отверстие в площадке не даст щупу соскользнуть. Но в нее не зацепишь крокодил.
Более того, промышленность выпускает множество...
Консольный интерфейс в микроконтроллере
Проектируя сложное устройство часто требуется како-нибудь отладочный терминал, чтобы можно было легко заглянуть в недра контроллера, выполнять команды, посмотреть логику. Вмешаться в ход событий, что-то запустить. Да банально логи посмотреть и ошибки считать.
Обычно для этого применяют UART и терминальный доступ в текстовом режиме. А для простоты и универсальности весь интерфейс реализуют прям в самом контроллере. Благо ресурсов это много не требует. Задача столь частая, что существуют хорошие готовые библиотеки терминальных систем для контроллеров. Одну из них я давно применяю и хочу познакомить читателей с ней.
Написана на Си и с большим количеством макросов. Состоит из трех файлов. Умеет...