вторник, 3 декабря 2024 г.

The Adafruit bq25185 USB / DC / Solar Charger Board uses the new bq25185. It is a nifty charger chip which has a lot of flexibility for different kinds of batteries (LiPoly, LiIon or LiFePO4), charging rates (250mA, 500mA, or 1A) and power sources (USB, DC or solar). To let folks really explore what this chip can do, we made a basic breakout board with all the things we find most useful: two ways to power/charge including a solar-friendly DC input, adjustable current and voltage, power path management, and status and control I/O.

The Adafruit bq25185 USB / DC / Solar Lithium Ion/Polymer Charger guide has everything you need to get started with this breakout. There’s pages for overview, pinouts, and resources for download.

Read more at Adafruit bq25185 USB / DC / Solar Lithium Ion/Polymer Charger



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понедельник, 2 декабря 2024 г.

Leftovers & layout - WLED board revision A completed!

Sunday night, Babyada went to bed early, so we finished the capture and layout of our WLED board. Thanks to all the suggestions, we were able to implement quite a few!

For power, use USB C PD with switch-select or DC up to 24V; they are diode-OR’d together with PMEG3050 (https://ift.tt/b5cICMq) into a massive 5A 24V fuse. For the 5V regulator, we picked NCP718ASN500T1G – it’s linear, but we don’t need a lot of current at 5V. For 3.3V, we went with our trusty TPS54202.

Upon request, we kept the ICS-43434 I2S microphone and added an IR 38KHz receiver. For external connectivity, there’s an ADC/DAC/GPIO #27 breakout on a JST SH 3-pin and I2C on a StemmaQT/Qwiic 4-pin.

We also added a 2×3 breakout header with 3V, GND, and 3 more GPIO so you could connect an external microphone, IR receiver, buttons, or rotary encoder. The terminal blocks have three 5V level-shifted outputs with 100 ohm in-line resistors and power/ground pairs for each. If you need just one more LED strand, the fourth 5V signal is on the 2×3 block.

Rounding out the design are four mounting holes, a reset button, GPIO #0 user button, GPIO LED, and an individual NeoPixel, which could be useful for testing. It’s still pretty small, 2″ x 1.3″. With an ESP32-Mini module, we can pick a PCB or wFL antenna port, and it’s an easy swap to make it use an ESP32-Pico, which has 2MB PSRAM.

Whatcha think – anything else we should add or watch out for?



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I admire President Joe Biden. But I'm disappointed by Sunday night’s pardon of son Hunter Biden, which will embolden Donald Trump to pardon Jan. 6 rioters.

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President-elect Trump is tapping his loyalists for top positions in his second administration. NBC News' Garrett Haake reports more. New York Times reporter Jeremy Peters and former senior advisor to House Speakers Paul Ryan and John Boehner Brendan Buck join Chris Jansing to react to some of the selections and to Trump repeatedly vowing retribution in his pitch to voters.

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Hot tip! if you want Jinx’s impossibly long braids, add some tulle. Nymesia Cosplay shows how in this quick vid. Check out the channel to see how they built their whole Jinx outfit.

More Jinx cosplay ideas: League of Legends Jinx Cosplay and Props Tutorials


Not quite canon but a 3D printed Bandolier of Light would make a pretty great addition. You just need some NeoPixels a Gemma and few accessories



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воскресенье, 1 декабря 2024 г.

President-elect Trump announced more of his Cabinet picks this weekend, including a controversial one for his new FBI Director, Kash Patel. Democratic strategist Don Calloway, Republican strategist Susan del Percio and former Rep. David Jolly react to the pick and explain what his possible confirmation by the Senate would mean for the country and national intelligence community.

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Day 1: Retrocomputing Advent Calendar - Apple II

🎄💾🗓 Day 1: Retrocomputing Advent Calendar – Apple II 🎄💾🗓

We kick things off with the legendary Apple II! Released in 1977, it was one of the first highly successful personal computers, known for its revolutionary design, colorful graphics, and expandability. Created by Steve Wozniak, the Apple II sparked the personal computing revolution.

This was Ladyada’s first computer, used at school to learn touch-typing, write essays, LOGO, and make calendars with print shop. The games are now memes – Number Munchers, Oregon Trail, and Odell Lake. Almost 40 years later, we can still hear the teacher telling us to “Kill the Corvus” and carefully placing our 5.25″ diskette in the hard case after class to take it home.

Have Apple ][ memories, or retro computing memories? Post’em up in the comments, or post yours on socialz’ and tag them #retrocomputing #firstcomputer #electronics

Photos (and video from DESK of LADYADA).

Retrocomputing Advent Calendar - Apple II

Retrocomputing Advent Calendar - Apple II



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Every year around this time we all see an uptick in phishing attempts. Phishing comes in all shapes and sizes so be on the look out for suspicious requests. When it comes to unsolicited emails or texts, stay frosty.

Receive a message from a shipping service? Checkout these helpful resources from our domestic carriers:

USPS: Don’t Get Snowed by Holiday Scams

Phishing and smishing are designed to steal personally identifiable information (PII), like credit card or Social Security numbers. In these scams, customers receive emails (phishing) or texts (smishing) that often contain either a fake URL or a file that, if opened, can activate a virus. Clicking on the link or opening the file allows fraudsters to steal PII.

UPS: Protect Yourself From Fraud and Scams

How to Recognize Fraud

  • Slow Down – Scammers rely on urgency to create panic. Be cautious of anything that implies you must act immediately. Take the time to review the message, then review it again.
  • Don’t Click — Check the Link – Legitimate UPS links will start with “https://www.ups.com”, “https://billing.ups.com”, “https://go.ups.com” or “http:/links4.upsemail.com”.
  • Check the Details – Are there spelling or grammar errors? Generic greetings, like “Sir or Madame?” Fraudsters will frequently use small typos to trick you into clicking on the link.
  • Report It – Report it to the Federal Trade Commission.
  • Delete and Block It – So you don’t accidentally interact with it later.
  • If It Seems Too Good To Be True, It Probably Is – Scammers may sell fake labels at deep discounts.


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