home.social

#ws2812 — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #ws2812, aggregated by home.social.

  1. Управление освещением с помощью любого USB пульта по Modbus RTU

    Добрый день коллеги. Я думаю многие, кто читает эту статью, сталкивались с проблемой найти визуально красивый пульт для управления основными функциями в системах автоматизации. Несколько дней поизучав дизайн zigbee пультов и радио канальных брелоков я наткнулся на интересный сегмент недорогих USB пультов от 500р, которые все обошли стороной. Поговорим подробнее как их можно внедрить в системы управления не только презентациями, но и чем угодно, начиная от ламп и штор в "умном доме" заканчивая управлением станками.

    habr.com/ru/articles/1026190/

    #AntexGate #mb2ws #мышка #клавиатура #raspberry #raspberry_pi #modbus #modbus_rtu #автоматизация #ws2812

  2. Got the start of an #ARGB #WS2812 signal parser working using #RaspberryPi #RP2040 PIO. Going to use this with my #OpenRGB RP2040 ARGB splitter project to send configuration data (LED channel counts) using a standard ARGB controller output. RP2040 PIO is awesome for dealing with high speed serial signals!

  3. Got the start of an #ARGB #WS2812 signal parser working using #RaspberryPi #RP2040 PIO. Going to use this with my #OpenRGB RP2040 ARGB splitter project to send configuration data (LED channel counts) using a standard ARGB controller output. RP2040 PIO is awesome for dealing with high speed serial signals!

  4. Bluetooth speakers and headphones often need more than the chip's built-in resources. The JL JieLi AC696N's SPI interface allows you to add external Flash, an LCD display, and RGB LEDs.

    All these configurations can be validated on the AC696N development board before porting to custom hardware. Once working, they significantly expand the capabilities of your audio product.

    #JieLi #AC696N #SPI #NorFlash #LCD #WS2812 #EmbeddedSystems #PeripheralExpansion #AudioProducts

    lnkd.in/gQC2sWyA

  5. I have put the gate LED rings on Tindie now.

    tindie.com/products/revk/led-r

    Sorry about the cost - the LEDs are cheap but there are 552 on each board... #WS2812 style, 3.3V to 5V.

    3D models for the gate are on @Codeberg, as are @kicad PCBs to order yourself. All #opensource

    led.revk.uk

    #stargate

  6. I have put the gate LED rings on Tindie now.

    tindie.com/products/revk/led-r

    Sorry about the cost - the LEDs are cheap but there are 552 on each board... #WS2812 style, 3.3V to 5V.

    3D models for the gate are on @Codeberg, as are @kicad PCBs to order yourself. All #opensource

    led.revk.uk

    #stargate

  7. What is crazy is moving to the larger LEDs (1.5mm x 1.6mm) from the smaller (1x1mm) actually allows me to do more LEDs in some cases as I can fit vias under the LEDs. It also helps moving the caps to 0201.

    This used to be 88 LEDs, and is now 101 LEDs, in a 32mm ⌀ PCB (designed for IronMan gloves, believe it or not!).

    #PCB #ws2812

  8. What is crazy is moving to the larger LEDs (1.5mm x 1.6mm) from the smaller (1x1mm) actually allows me to do more LEDs in some cases as I can fit vias under the LEDs. It also helps moving the caps to 0201.

    This used to be 88 LEDs, and is now 101 LEDs, in a 32mm ⌀ PCB (designed for IronMan gloves, believe it or not!).

    #PCB #ws2812

  9. The serial LED strip stuff on ESP IDF is pretty good, a standard library. e.g. neopixel, etc.

    It used RMT (IR Remote Control) to generate the series of pulses.

    But a better way is to use SPI. And the library now does that too.

    But I wanted something the library does not do.

    Ability to have a strip that is, say, RGB, linked to another that is RGBW. Send 3 bytes for first X pixels and 4 for the rest, etc.

    So, ended up making my own SPI based serial LED driver.

    Yay, it works.

    #WS2812 #SK6812

  10. The serial LED strip stuff on ESP IDF is pretty good, a standard library. e.g. neopixel, etc.

    It used RMT (IR Remote Control) to generate the series of pulses.

    But a better way is to use SPI. And the library now does that too.

    But I wanted something the library does not do.

    Ability to have a strip that is, say, RGB, linked to another that is RGBW. Send 3 bytes for first X pixels and 4 for the rest, etc.

    So, ended up making my own SPI based serial LED driver.

    Yay, it works.

    #WS2812 #SK6812

  11. This is what happens, if you leave me alone with an #ESP32, a #WS2812 LED-Strip and some time.
    I have not yet implemented it to display maintenance times. I believe #UptimeKuma will internally handle that as up and note the maintenance somewhere else, but I'm not fully sure.

    #tinkering #homelab #diy #leds #idea

  12. This is what happens, if you leave me alone with an #ESP32, a #WS2812 LED-Strip and some time.
    I have not yet implemented it to display maintenance times. I believe #UptimeKuma will internally handle that as up and note the maintenance somewhere else, but I'm not fully sure.

    #tinkering #homelab #diy #leds #idea

  13. Спасаем ARGB: Как я заменил сгоревший китайский хаб на ESP32 с веб-интерфейсом

    Год назад я собрал систему с пятью бюджетными ARGB вентиляторами Aigo AR12 с 6-pin разъёмами. В комплекте шёл хаб AR12-2012 — типичная китайская плата с 5 портами для вентилей, SATA питанием и выходом на материнку для синхронизации подсветки. Всё работало. Красиво светилось. Но ровно год . Однажды утром вентиляторы крутились, а подсветка — нет. Хаб умер. Покупать новый за $15-20 не хотелось, тем более что я знал: внутри этих вертушек сидят обычные адресные светодиоды (WS2812/SM16703-совместимые). А раз адресные, значит можно управлять с ESP32 .

    habr.com/ru/articles/973472/

    #ESP32 #ARGB #RGB_контроллер #WS2812 #вебинтерфейс #DIY #NeoPixel #Aigo_AR12 #микроконтроллер #домашняя_автоматизация

  14. I've spent way too much time investigating why my #ws2812 RGB LED strip driven by #esp8266 with #wled firmware is only lighting up roughly half way.

    I was checking wiring guides and signal strength, modding the level shifter as per wled.discourse.group/t/levelsh

    Before I realized I bought a longer strip (5m) than I was calculating with (3m)...

  15. I've spent way too much time investigating why my #ws2812 RGB LED strip driven by #esp8266 with #wled firmware is only lighting up roughly half way.

    I was checking wiring guides and signal strength, modding the level shifter as per wled.discourse.group/t/levelsh

    Before I realized I bought a longer strip (5m) than I was calculating with (3m)...

  16. Published the #WLED #ws2812 matrix projector on printables:

    printables.com/model/1470198-w

    it uses resin printed optics as well as a cheap Fresnel magnifier lens to project 8x8 LED matrix modules running WLED.

  17. Published the #WLED #ws2812 matrix projector on printables:

    printables.com/model/1470198-w

    it uses resin printed optics as well as a cheap Fresnel magnifier lens to project 8x8 LED matrix modules running WLED.

  18. RFC/thinking out loud: Powering Portable Projects

    I want to power several 1m long #ws2812 RGB strips from power bank(s) for not a lot of money. The LED specs say 60 LEDs per meter and 60mA max power draw per LED. That's 3.6A/m (18W at 5V).

    Affordable USB-C cables are rated for 3A only. What if I take one of these PD trigger boards (0.8€/pc) to request a higher voltage (e.g. 12V), and then use a small buck converter (also 0.8€/pc) to bring it back to 5V. Supposedly it supports 5A out.

  19. RFC/thinking out loud: Powering Portable Projects

    I want to power several 1m long #ws2812 RGB strips from power bank(s) for not a lot of money. The LED specs say 60 LEDs per meter and 60mA max power draw per LED. That's 3.6A/m (18W at 5V).

    Affordable USB-C cables are rated for 3A only. What if I take one of these PD trigger boards (0.8€/pc) to request a higher voltage (e.g. 12V), and then use a small buck converter (also 0.8€/pc) to bring it back to 5V. Supposedly it supports 5A out.

  20. STM32 Tutorial #69 - WS2812 USB HID Controller (Neopixel RGB LED)

    In this video we will combine earlier videos using USB HID to control the programmable RGB WS2812 Neopixels.

    #STM32 #GettingStarted #Tutorial #STM32CubeIDE #STM32CubeMX #USB #HID #WS2812 #NeoPixel #STM32World

    youtube.com/watch?v=gc_AD8k0PCI

  21. STM32 Tutorial #69 - WS2812 USB HID Controller (Neopixel RGB LED)

    In this video we will combine earlier videos using USB HID to control the programmable RGB WS2812 Neopixels.

    #STM32 #GettingStarted #Tutorial #STM32CubeIDE #STM32CubeMX #USB #HID #WS2812 #NeoPixel #STM32World

    youtube.com/watch?v=gc_AD8k0PCI

  22. Never worked with acrylic before, not particularly pleasant. Camera doesn't really do justice to the brightness - my #homeassistant control has it set at 6% - light from 9 #WS2812's powered off an #ESP32-C6. Home Assistant flashes it when it changes state. I think I might 3d print a back panel and see how it some out.

    Lettering engraved with a 60 degree V-bit to a depth of 1.35mm. Engraving is done backwards on the reverse side so that the front side is smooth to the touch. Going to experiment a bit more with sanding to ~220 and then engraving to see if that has a good (or bad) effect.

    I bet your desks are all tidy, aren't they.
  23. Русская «Ардуина»: первый взгляд любителя

    Я — самодельщик-ардуинщик со стажем. Люблю пихать ардуины во всякие подходящие и не очень места. Как-то раз я уже показывал свою коллекцию Arduino-совместимых плат, и с тех пор она только росла и ширилась. Теперь в ней случилось особенное пополнение: русская (пока не) народная «Ардуина» ELBEAR от сибирской компании «Элрон» на базе отечественного микроконтроллера MIK32 «Амур», о существовании которой я узнал несколько дней назад из статьи на Хабре . В статье я изложу частный опыт искушённого любителя, который пытается импортозаместить зарубежную Arduino и приспособить данную плату для своих любительских нужд, не залезая в дебри. Конечно, это далеко не первая подобная публикация, с поездкой на поезде хайпа я припозднился примерно на годик. Зато она отражает актуальное положение дел и демонстрирует, чем чреват смелый прыжок веры прямо в неизвестность без предварительного изучения вопроса. К тому же, я не самый обычный ардуинщик. Вкусы мои специфичны: я не сделал ни одной метеостанции, мой дом глуп как пробка, и даже мои часы на Arduino — стрелочные. Вместо этого я делаю вещи, так или иначе связанные с электронными и видеоиграми, демосценой, звуком и музыкой с уклоном в ретро. И разнообразные ардуины мне нужны и интересны именно в этом контексте. А значит, есть шанс, что будет интересно.

    habr.com/ru/companies/ruvds/ar

    #ruvds_статьи #arduino #arduino_nano #arduino_uno #arduino_ide #ардуина #микроконтроллеры #микроэлектроника #ws2812 #adafruit #амур #мик32_амур #mik32_amur #amur #К1948ВК018 #микрон #элрон #ELBEAR #ELBEAR_ACEUNO #ELBEAR_ACENANO #AY38910 #ST7789 #SH1106 #ILI9488 #ili9341 #импортозамещение

  24. I built a scaffolding system for 16x16 #WS2812 #LED panels you can #3Dprint in #FreeCAD.

    printables.com/model/1093151-l

    I had these panels for a while but fell out of love with the idea of building another cube. Instead I thought they might be nifty as screen or light-blaster.

    So i came up with this portable system to set them up at congress and similar. Making the CAD work automagically for an arbitrary number of panels turned out to be more hassle than it's worth, so for now it's 1-3 per setup.

  25. I built a scaffolding system for 16x16 #WS2812 #LED panels you can #3Dprint in #FreeCAD.

    printables.com/model/1093151-l

    I had these panels for a while but fell out of love with the idea of building another cube. Instead I thought they might be nifty as screen or light-blaster.

    So i came up with this portable system to set them up at congress and similar. Making the CAD work automagically for an arbitrary number of panels turned out to be more hassle than it's worth, so for now it's 1-3 per setup.

  26. STM32 Tutorial #37 - Cool RGB LEDs (WS2812 aka. NeoPixel)
    Driving WS2812 NeoPixel RGB LEDs with a STM32. In this video we'll go through my library which uses Timer PWM + DMA to drive a string WS2812 NeoPixel RGB LEDs.
    #stm32 #tutorial #ws2812 #ws2812b #neopixel #timer #pwm #dma #stm32world
    youtube.com/watch?v=mdZerUTFJUw

  27. STM32 Tutorial #37 - Cool RGB LEDs (WS2812 aka. NeoPixel)
    Driving WS2812 NeoPixel RGB LEDs with a STM32. In this video we'll go through my library which uses Timer PWM + DMA to drive a string WS2812 NeoPixel RGB LEDs.
    #stm32 #tutorial #ws2812 #ws2812b #neopixel #timer #pwm #dma #stm32world
    youtube.com/watch?v=mdZerUTFJUw

  28. (1/2) Heute mal einen #ws2812 #LEDStrip aus dem #esp32 Starter Paket programmiert. Das wäre so ein Use Case, den ich mir auch gut im #smarthome vorstellen könnte - dann aber mit #WLED integration.

    Anhand des Basis-Codes und KI ist man selbst als absoluter Beginner schnell am Ziel. In meinem Fall acht Farben in Knight Rider Optik anzuzeigen. Umgesetzt wurde das Ganze in der #arduinoIDE

    Ich hab den fertigen Code beigefügt, alles gut nachvollziehbar, wenn man es fertig hat.

    #esp32experiments

  29. Letzte Chance, schaut vorbei, Science Communication Center
    Assembly, M7, Saal X, 1. OG 38c3.c3nav.de/l/scc/ #38C3 #Hub75 #ws2812 #rp2040

  30. Letzte Chance, schaut vorbei, Science Communication Center
    Assembly, M7, Saal X, 1. OG 38c3.c3nav.de/l/scc/ #38C3 #Hub75 #ws2812 #rp2040

  31. Проект выходного дня — автономный RGB шарик на ёлку

    Здравствуйте Хабровчане! В преддверии Нового года хочу поделиться с вами опытом изготовления поделки, в основе которой лежит бесплатная "девборда" из условно одноразового изделия. В статье разберемся как управлять адресными светодиодами при помощи микроконтроллера PUYA PY32F002BF и как отслеживать заряд батареи при помощи АЦП.

    habr.com/ru/articles/868216/

    #PUYA #ADC #WS2812 #микроконтроллеры #программирование_микроконтроллеров

  32. ca. 150.000 LEDs bereit für die morgige Zugfahrt nach Hamburg.
    #38C3 #LED #hub75 #ws2812 #rp2040

  33. ca. 150.000 LEDs bereit für die morgige Zugfahrt nach Hamburg.
    #38C3 #LED #hub75 #ws2812 #rp2040

  34. The #WS2815 look like a nice upgrade to #WS2812. The main feature is they take 12V. But still one pixel addressable (many 12V strips do three LEDs together to “use up” the 12V).

    This means lower current, and also a lot more tolerance of voltage drop.

    They also do a backup data for single dead pixel tolerance.

    What I’d like to see is RGBW.

    But what is lowest voltage? Data sheets (naff) seems to say 9V-13V in “absolute max rating”.

    I tested a 5m strip on 5V and it worked perfectly!

    Yay!

  35. Der 5. Workshop "Programmieren lernen mit Arduino" findet am Donnerstag 21.11. um 19:00 im #ZTL statt.

    Endlich - smarte RGB-WS2812 Neopixel LEDs! Wir erfahren, wie sie funktionieren und setzen für die Ansteuerung die FastLED-Bibliothek ein. Als Belohnung gibt's dann noch ein kleines Reaktionsspiel zum Testen der Reflexe und Hand-Auge-Koordination

    #ztl #ztlspace #zentrumfürtechnikkultur
    #makerspace #arduino #programmieren
    #landau #WS2812 #neopixel #FastLED