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This week's EYE ON NPI looks miiiiiighty familiar with those of us who love our colorful lights, it's Würth Elektronik's RGB WL-ICLED Integrated Controller Within LED (https://www.digikey.com/en/product-highlight/w/wurth-electronics/wl-icled-integrated-controller-within-led). WE's take on the 'smart LED' has taken over the electronics industry over the past 15 years. These ubiquitous LEDs can save you time, pins, and cost by simplifying the addition of up to a couple-dozen colorful LEDs, especially when the PCB size is at a premium. Back in my day, if you wanted to add a lot of colorful LEDs to a design, you'd have to use a dedicated LED driver chip. That is, unless your microcontroller had tons of pins, and 10mA drive current - and even then there's a total current-draw limit for the chip package. We still stock some breakouts for these like the TLC5947 (https://www.adafruit.com/product/1429) a 'chainable' SPI board that could drive 8 RGB LEDs and PWM them all for you, often with a set-able constant-current. There's still need for chips like this, but they're often kinda large, and they're not free, so using them was not a light matter. Then came the first - or close to the first - low cost chainable LED driver: the LPD8806 (https://www.adafruit.com/product/306). We wrote a library for this chip in 2011 (https://github.com/adafruit/LPD8806/commits/master/?after=1951478c2c2a8317feab9997cdfddba3728a245a+69), the way this chip worked is it could control two RGB LEDs per, with all PWM handled internally and you only needed 2 pins! This was inexpensive and worked great, but the chips were still a bit large, 14-SOICs. They were superseded by the WS2811 (https://www.adafruit.com/product/1060) which came up with using a Manchester encoding (https://en.wikipedia.org/wiki/Manchester_code) for transport over a single line. These used even less space, and only a single pin, with an SOIC-8 package. However, the real ingenuity is when folks realized they could put the chip INSIDE the LED: and thus was born what we call "NeoPixel" (https://www.digikey.com/en/products/result?s=N4IgTCBcDaIHYFMD2AHAlgDwQGxAXQF8g) a fully chainable smart LED that only uses one pin and no external components. Now all's been right in the world, with dozens of different shapes, configurations and sizes of 'WS2812-compatible' LEDs. But there was one thing missing: a reliable source of smart LEDs. And we should know because we use a lot of these chips: and we try to warn folks that low cost LEDs have differing LED color and brightnesses, are hard to solder and rework, and suffer high failure rates in the field. Worst of all, when one fails all the ones down the line also fail! Until today you just had to cross your fingers and hope that the reel you got was from a 'good batch'. That's why we were excited to see Würth Elektronik's RGB WL-ICLED in DigiKey's NPI list, because WE is known for high quality, reliable products. Unlike most NeoPixel compatibles, this datasheet specifies the LED brightnesses and spectra. It also has RoHS, REACh and Halogen compliance. Finally, you know you'll be getting consistent quality, where each LED solders just as well as last week's or last year's batch. The WL-ICLEDs are available in 4 sizes, including the common 5x5mm and 2x2mm. Würth Elektronik also designed a cool FeatherWing (https://github.com/WurthElektronik/FeatherWings/tree/main/ICLEDFeatherWing) with hundreds of the 2x2mm ICLEDs to demo how to display animations, text, and graphics. (https://www.youtube.com/watch?v=_tCo7FSO1Gk) If you want a NeoPixel compatible LED, with trace-ability, high reliability and known functionality check out Würth Elektronik's RGB WL-ICLED (https://www.digikey.com/en/product-highlight/w/wurth-electronics/wl-icled-integrated-controller-within-led) available right now at DigiKey! Order today and you'll get your ready-to-assemble rainbows by tomorrow afternoon.
Oggi vi parlo di un tipo di Led RGB magico, quasi un sogno per chi armeggia con l'eletronica.Oggi lo trovate in mille oggetti che magari avete in casa, incluso il vostro aspirapolvere o frigorifero, ma più frequentemente in tutti gli impianti di illuminotecnica recente.Nell'episodio prendo spunto da una cosa che oramai è accaduta un po' di tempo fa, perché come sapete io registro i miei episodio molto tempo prima e a volte, come in questo caso, si parla di un evento che è accaduto diversi mesi fa. Ciò nonostante, il significato e lo scopo non cambia.Episodi YouTube dove parlo di questi LED nelle loro varie forme:https://youtu.be/x9Zc9yQr9zQhttps://youtu.be/UHR_J8t_2zkhttps://youtu.be/5l1quX6fbygAlcuni esempi di neopixelhttps://it.banggood.com/custlink/33GhgSGq0Yhttps://it.banggood.com/custlink/v3Kh4Sm26Chttps://it.banggood.com/custlink/GDGh0I32ePhttps://it.banggood.com/custlink/vvGEBivUgIDatasheet del componenten:https://cdn-shop.adafruit.com/datasheets/WS2812.pdfSurvival Hacking su Youtubehttps://www.survivalhacking.itInoltre mi trovate qui:https://t.me/technopillzriothttps://www.runtimeradio.itSostenete Runtime Radio:http://runtimeradio.it/ancheio/Sostenete Survival hackinghttps://www.paypal.me/SurvivalHackingLe mie BGM suPond5https://www.pond5.com/artist/thoroide#1/2064 Spotifyhttps://open.spotify.com/artist/1coeUect3UnQ4HjRQQu6EO Apple Musichttps://itunes.apple.com/us/album/presentation/1461490308?app=music https://itunes.apple.com/us/album/magic-ep/1461486916?app=music https://itunes.apple.com/us/album/sound-dimension-ep/1461536417?app=music Ituneshttps://itunes.apple.com/us/album/presentation/1461490308?app=itunes https://itunes.apple.com/us/album/magic-ep/1461486916?app=itunes https://itunes.apple.com/us/album/sound-dimension-ep/1461536417?app=itunes Youtubehttps://music.youtube.com/playlist?list=OLAK5uy_mH3bw9JFuGk1BvhWluht0ao-LDSHuwKNw https://music.youtube.com/playlist?list=OLAK5uy_kU6l_g3Y4mgJP0B7PFJ4SP3mCIUiiocTQ https://music.youtube.com/playlist?list=OLAK5uy_l5Px6E2_RSq6V7LgjHpYrWGYOF6W7QGzs Deezerhttps://www.deezer.com/it/artist/5504122?utm_source=deezer&utm_content=album-94957612&utm_term=0_1556297485&utm_medium=web
Hi there! Thanks for tuning in (or reading this text and then deciding not to tune in at all). Another episode with a mixed bag of semi-interesting topics. Thanks for the feedback - the inter-segment jingle will be a bit less loud from now on. Poor ears. We start off by counting pass & fail on this year's new year's resolutions, followed by mentioning a small inline PCB for driving LED-strips and so on. The PCB was used for 2 light effects so far - links to videos of both are given below. Ran into a "gotcha" when dealing with LED-effects: intelligent LEDs stuck in "full brightness" mode, causing the supply to shit itself and the system to become unresponsive. (Quickfix: small delay between boot and start-of-effect at power-on.) For the LED-effects, I measured rand() execution times (avr-gcc, avr-libc, ATmega168 @ 8 MHz) and was pleasantly surprised by its speed and predictability. Will use again. Finally, some fuzzy guesstimates / measurements about what kind of voltage drop to expect when running current through long cables. Relevant links: video of wallclock with WS2812 strip at home ...and one of a coffee table at Hackalot (Eindhoven, NL) Maker Faire Eindhoven on 28 & 29 September. Applications run (for now) until 31 July. Snapshot of my inline PCB:
After 5 weeks or so, we're finally back! You'd think this episode is filled with 5 weeks worth of exciting techie stuff, but don't get your hopes up yet. Because it's not. Domen joins in to talk about his experiments with home automation, and a sowing exhibition lacking electronics and software. Furthermore, we talk about a disco LED box hack, and briefly list the difference between WS2812 and WS2813 intelligent LED. Relevant links: push sensordata to cloud for visualisation and retrieval: simple (free, up to 10 sensors, 1 datapoint/minute, 1 month history): https://io.adafruit.com/ https://pushdata.io/ https://thingspeak.com/ more advanced, for sensors and actuators, with more complex config: https://www.home-assistant.io/ Maker Faire Ruhr (Dortmund, Germany), 23 and 24 March RetroChallenge 2019/03 Screenshot of temperature monitoring in action (from https://io.adafruit.com/): Some pics of the disco LED box hack (take out innards, glue WS2812 strip into a matrix shape, and insert at back wall of box): (video would be nice, but is not yet done - remember, we're lazy around here.)
Micah Elizabeth Scott (@scanlime) came to talk about Fadecandy, a really neat way to control smart LEDs (NeoPixel, AdaFruit's term for the WS2812). The conversation ranged from beautiful LED control algorithms and open source embedded projects to triangle tessellations, art, and identity. AdaFruit has a great intro to Fadecandy. Fadecandy is open source hardware and software, see the repository. Micah's blog is a combo of art and technology. Burning Man's Ardent Mobile Cloud (also a lovely still pic). Elecia also mentioned Deep Darc's hack of the GE Color Effects lights.
To make FastLED work with an array of WS2812 LEDs, there are five basic pieces that Padre discusses with Mark "Smitty" Smith Quick Notes:The power regulator on an Arduino can provide ~500ma if you're giving it at least 7v of powerIf you're powering it from USB, it's closer to 400maEach LED can pull UP TO 60ma (20ma per color)If you're going to power a long strand of LEDs, you want to use an external power source. Host: Fr. Robert Ballecer, SJ Guest: Mark Smith Subscribe and get Coding 101 automatically at https://twit.tv/code Follow @PadreSJ on Twitter. Bandwidth for Coding 101 is provided by CacheFly. Sponsors: lynda.com/c101 braintreepayments.com/coding
To make FastLED work with an array of WS2812 LEDs, there are five basic pieces that Padre discusses with Mark "Smitty" Smith Quick Notes:The power regulator on an Arduino can provide ~500ma if you're giving it at least 7v of powerIf you're powering it from USB, it's closer to 400maEach LED can pull UP TO 60ma (20ma per color)If you're going to power a long strand of LEDs, you want to use an external power source. Host: Fr. Robert Ballecer, SJ Guest: Mark Smith Subscribe and get Coding 101 automatically at https://twit.tv/code Follow @PadreSJ on Twitter. Bandwidth for Coding 101 is provided by CacheFly. Sponsors: lynda.com/c101 braintreepayments.com/coding
To make FastLED work with an array of WS2812 LEDs, there are five basic pieces that Padre discusses with Mark "Smitty" Smith Quick Notes:The power regulator on an Arduino can provide ~500ma if you're giving it at least 7v of powerIf you're powering it from USB, it's closer to 400maEach LED can pull UP TO 60ma (20ma per color)If you're going to power a long strand of LEDs, you want to use an external power source. Host: Fr. Robert Ballecer, SJ Guest: Mark Smith Subscribe and get Coding 101 automatically at https://twit.tv/code Follow @PadreSJ on Twitter. Bandwidth for Coding 101 is provided by CacheFly. Sponsors: lynda.com/c101 braintreepayments.com/coding
To make FastLED work with an array of WS2812 LEDs, there are five basic pieces that Padre discusses with Mark "Smitty" Smith Quick Notes:The power regulator on an Arduino can provide ~500ma if you're giving it at least 7v of powerIf you're powering it from USB, it's closer to 400maEach LED can pull UP TO 60ma (20ma per color)If you're going to power a long strand of LEDs, you want to use an external power source. Host: Fr. Robert Ballecer, SJ Guest: Mark Smith Subscribe and get Coding 101 automatically at https://twit.tv/code Follow @PadreSJ on Twitter. Bandwidth for Coding 101 is provided by CacheFly. Sponsors: lynda.com/c101 braintreepayments.com/coding
Micah Elizabeth Scott (@scanlime) came to talk about Fadecandy, a really neat way to control smart LEDs (NeoPixel, AdaFruit's term for the WS2812). The conversation ranged from beautiful LED control algorithms and open source embedded projects to triangle tessellations, art, and identity. AdaFruit has a great intro to Fadecandy. Fadecandy is open source hardware and software, see the repository. Micah's blog is a combo of art and technology. Burning Man's Ardent Mobile Cloud (also a lovely still pic). Elecia also mentioned Deep Darc's hack of the GE Color Effects lights.