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How to run an Arduino for years on a battery (2021)

news.ycombinator.com Unknown 2025-07-17 06:39:17

If you found this article after doing a search on Google, welcome! On this website you will find plenty of content around DIY home automation using open-source hardware. Enjoy the article! For most of the Arduino tutorials you will find on this website, power is usually not an issue as the Arduino is powered by the USB cable coming from the computer. However, sometimes you want to build systems that are going to be autonomous and powered by a battery. For example, you want to power a wireless

Topics: arduino battery chip need power

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EA's big reveal for its next Battlefield game may already be spoiled

engadget.com Unknown 2025-07-20 07:43:44

Looks like we can skip the drum roll for the next Battlefield title reveal. Seen in a leak of Electronic Arts' upcoming first-person shooter, the company is shipping promotional materials to content creators for Battlefield 6. The name drop may not be all that surprising, but the highly anticipated title could be a turning point for EA that follows up on Battlefield 2042, which was released in 2021 and currently sits at a Mixed review rating on Steam. In the since-deleted post, gaming YouTuber

Topics: battlefield ea event game reveal

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I Tested the Inmotion V9 EUC, and It's Easily One of the Best Choices for Beginners

cnet.com See Full Bio 2025-07-20 02:00:07

Table of Contents I Tested the Inmotion V9 EUC, and It's Easily One of the Best Choices for Beginners The Inmotion V9 is among the best grab-and-go electric unicycles (EUCs) available that I've tested. I say that as someone who's been riding wheels for years now and prefers them to e-bikes. They're not for everyone, but thanks to the V9's size, security features, focus on rider safety and reliable battery risk reduction, it's a fantastic option if you're ready to leave handlebars behind. Plus,

Topics: battery inmotion just v9 wheel

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Anker 548 Power Bank hits record-low price: Portable, powerful, and works as a lantern

androidauthority.com Unknown 2025-07-20 10:03:07

The Anker 548 Power Bank is a very interesting type of battery. As you can see in the image, it looks nothing like a standard battery pack, but it’s also much smaller than a power station. This one aims to fall somewhere in the middle, making it a great option for short camping trips, quick power outages, and weekend adventures. If you’re interested, it’s also at its all-time low price of just $89.99 right now. Buy the Anker 548 Power Bank for just $89.99 ($60 off) This offer is available from

Topics: 548 anker bank battery power

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Leaked iPhone 17 Air battery capacity reveals new model’s biggest weakness

9to5mac.com Ryan Christoffel 2025-07-21 02:38:47

Source: AppleTrack This fall, an ultra-thin iPhone 17 Air will join Apple’s product lineup. But unsurprisingly, that radically thin design will likely come with some battery compromises. Here’s what the latest leak says about iPhone 17 Air battery capacity. iPhone 17 Air battery ‘does not exceed 3000mAh,’ per leaker Back in May, leaker yeux1122 claimed that the iPhone 17 Air’s battery capacity would be lower than some might have expected. Per the account, Apple’s new iPhone 17 Air is getting

Topics: 17 air battery capacity iphone

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This Android wearable lasts for days, and left my Samsung Galaxy Watch in the dust

zdnet.com Matthew Miller 2025-07-22 16:00:15

ZDNET's key takeaways The OnePlus Watch 3 normally retails for $350. Its long-lasting battery, durability, rotating digital crown, and superb design make this a compelling smartwatch. However, the OHealth app needs some work, workout data screens are limited, and ECG measurements are not supported. View now at OnePlus After the original OnePlus Watch failed in 2021, the company hit it out of the park with the OnePlus Watch 2. Users, like myself, have been very happy with the Watch 2, but did

Topics: app battery life oneplus watch

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Anker SOLIX Everfrost 2 58L Electric Cooler hits record-low price, $340 off

androidauthority.com Unknown 2025-07-22 22:15:23

We recently reported on a record-low deal for the Anker SOLIX Everfrost 2 40L Electric Cooler, which is the one I personally use. Some of you may want something bigger, though! The larger Anker SOLIX Everfrost 2 58L Electric Cooler is also on sale, and it’s also at an all-time low price! Buy the Anker SOLIX EverFrost 2 58L Electric Cooler for $759.99 ($340 off) This offer is available from Amazon, but it is shipped and sold directly by Anker. There is a significant caveat: this deal is exclusiv

Topics: anker battery cooler electric fridge

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Karl Urban is a wise-cracking Johnny Cage in Mortal Kombat II

arstechnica.com Unknown 2025-07-23 06:06:01

Karl Urban takes a break from The Boys to play a washed-up Johnny Cage in the trailer for Mortal Kombat II, a sequel to 2021's Mortal Kombat reboot and the fourth live-action film in the franchise based on the 1990s video game series. It comes one day after Warner Bros. released a (very entertaining) fake trailer for a new in-universe, faux 1990s Johnny Cage movie, Uncaged Fury. (Cage's prior fake film credits apparently include Cool Hand Cage, Hard to Cage, and Rebel Without a Cage.) The first

Topics: cage film kombat mortal sequel

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Best MagSafe battery packs 2025: I tested the best options to boost your phone's battery

zdnet.com Kayla Solino 2025-07-23 10:29:51

MagSafe accessories like MagSafe wallets can upgrade our phones from basic to better. When our phones need a battery boost, most of us can't stay tethered to a wall outlet. Thankfully, with MagSafe battery packs, you don't have to. The battery market is packed with options that can boost your phone's battery life on the go. From portable power banks to wireless charging stations, there's something for everyone. I've personally tested over a dozen MagSafe battery packs from brands like Torras an

Topics: 000mah battery charging magsafe pack

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The First Trailer for ‘Mortal Kombat II’ Is a Johnny Cage-Filled Extravaganza

gizmodo.com Isaiah Colbert 2025-07-23 22:00:01

Warner Bros. has finally unveiled the new trailer for Mortal Kombat II, the sequel to its 2021 video game adaptation. It stars Karl Urban as B-movie star Johnny Cage, and the character is front and center in this new clip. The sequel film, whose title is likely to cause further confusion among fighting game fans, on top of the damage already caused by game developer NetherRealm Studios, was first announced in 2022. The trailer aims to put viewers right back in the middle of the gory action. In

Topics: film game ii kombat mortal

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Watch Our Livestream Replay: Inside the AI Copyright Battles

wired.com Reece Rogers 2025-07-25 12:32:11

What's going on right now with the copyright battles over artificial intelligence? Many lawsuits regarding generative AI’s training materials were initially filed back in 2023, with decisions just now starting to trickle out. Whether it’s Midjourney generating videos of Disney characters, like Wall-E brandishing a gun, or an exit interview with a top AI lawyer as he left Meta, WIRED senior writer Kate Knibbs has been following this fight for years. Watch the replay of WIRED’s subscriber-only li

Topics: ai battles kate knibbs wired

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Watch Karl Urban’s Johnny Cage Be a B-List Movie Star in This Faux Movie Trailer

gizmodo.com Isaiah Colbert 2025-07-25 18:00:32

Ahead of the release of the official trailer for Mortal Kombat II, Warner Bros. sneakily released a spoof movie trailer to go along with its meta marketing for its leading man, Johnny Cage, played by The Boys star Karl Urban. When Mortal Kombat first released back in 2021, fans of NetherRealm’s long-running fighting game series collectively scratched their heads in confusion over one of its original characters, Johnny Cage, being absent from the film. As if overcorrecting from past mistakes, Wa

Topics: cage kombat mortal trailer warner

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GM and Redwood teaming up to make batteries for energy storage

theverge.com Andrew J. Hawkins 2025-07-25 22:00:00

is transportation editor with 10+ years of experience who covers EVs, public transportation, and aviation. His work has appeared in The New York Daily News and City & State. General Motors and Redwood Materials are joining forces yet again, this time with the intent to build energy storage units made out of new batteries and recycled EV packs. The two companies signed a non-binding memorandum of understanding to build energy storage out of US-manufactured batteries, as well as “second-life” EV

Topics: batteries energy grid new storage

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GM teams up with Redwood Materials to power data centers with EV batteries

techcrunch.com Tim De Chant 2025-07-25 22:00:00

GM is sending new and old EV batteries to recycler Redwood Materials, which then repurposes the packs for stationary energy storage, the two companies announced today. Second-life batteries from GM have already made their way through Redwood’s process and into a 12 megawatt microgrid at the company’s Sparks, Nevada, headquarters. Electricity from that installation then flows to a nearby 2,000 GPU data center owned by Crusoe. The microgrid is part of Redwood’s new energy storage division that l

Topics: batteries energy new redwood storage

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This phone has twice the battery capacity of the Galaxy S25 Edge and costs less than $200

androidauthority.com Unknown 2025-07-26 06:28:37

TL;DR HONOR just announced the X70 phone, set to go on sale on Friday in China. Despite its $165 price tag, the HONOR X70 features a massive 8,300mAh silicon-carbon battery and military-grade toughness. At 8.2mm, it’s about the same thickness as the iPhone 16 Pro. A $165 smartphone wouldn’t usually raise expectations about its specs, but one manufacturer clearly didn’t get that memo. Despite the price tag, the new HONOR X70 boasts an insane 8,300mAh silicon-carbon battery along with military-

Topics: battery honor phone price x70

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The Galaxy Watch 8 gets a key battery health feature that more smartwatches need

androidauthority.com Unknown 2025-07-26 06:42:49

Mishaal Rahman / Android Authority TL;DR Samsung’s new Galaxy Watch 8 series introduces a “battery protection” feature designed to extend the device’s battery longevity. The feature works by stopping the charge at 90% and only resuming it when the battery level drops down to 85%. This prevents the battery from sitting at a full 100% charge, which reduces stress and helps slow long-term battery degradation. Most people don’t upgrade their smartwatch every year, opting to keep their device unt

Topics: battery charging feature galaxy watch

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Stranger Things 5’s first trailer promises an epic showdown

theverge.com Andrew Webster 2025-07-26 14:05:31

The fall of 1987. Hawkins is scarred by the opening of the Rifts, and our heroes are united by a single goal: find and kill Vecna. But he has vanished — his whereabouts and plans unknown. Complicating their mission, the government has placed the town under military quarantine and intensified its hunt for Eleven, forcing her back into hiding. As the anniversary of Will’s disappearance approaches, so does a heavy, familiar dread. The final battle is looming — and with it, a darkness more powerful

Topics: 1987 anniversary approaches battle complicating

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Finally, a smart ring that rivals my Oura 4 with no subscription fee

zdnet.com Nina Raemont 2025-07-27 04:00:18

ZDNET's key takeaways The RingConn Gen 2 is a subscription-free smart ring that monitors sleep, exercise, and stress. It monitors your sleep, activity, stress, and vitals, and it's got a marathon battery life. The only downside is the user interface feels underdeveloped. View now at Amazon View now at Ringconn more buying choices Most smart rings these days claim to offer marathon battery lives, but often fall short of their promise. Many smart rings claim to last a week's worth of battery, b

Topics: battery ring ringconn sleep smart

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If you're over the expensive flagships, this $199 Motorola is a legit budget option

zdnet.com Cesar Cadenas 2025-07-27 04:30:21

ZDNET's key takeaways Motorola's Moto G is available now for $199. The smartphone boasts a long-lasting battery, booming speakers, and a solid camera array. However, I wouldn't call it a "pocket-sized theater" due to its underwhelming display. View now at Amazon View now at Motorola more buying choices In a world where flagship smartphones can cost $1,000 or more, key brands have carved a niche for themselves by developing midrange alternatives. These manufacturers equip their devices with a

Topics: battery moto motorola phone zdnet

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Nextflow: System for creating scalable, portable, reproducible workflows

news.ycombinator.com Unknown 2025-07-27 06:30:52

"Dataflow variables are spectacularly expressive in concurrent programming" Henri E. Bal , Jennifer G. Steiner , Andrew S. Tanenbaum Nextflow is a workflow system for creating scalable, portable, and reproducible workflows. It is based on the dataflow programming model, which greatly simplifies the writing of parallel and distributed pipelines, allowing you to focus on the flow of data and computation. Nextflow can deploy workflows on a variety of execution platforms, including your local mach

Topics: batch community dataflow nextflow workflows

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I found an AirTag dupe that lasts twice as long (and works with Android)

zdnet.com Adrian Kingsley-Hughes 2025-07-28 10:47:55

ZDNET's key takeaways Ugreens Finder Tag is on sale now for $16, and the Slim Wallet Finder is available for $30. The battery in the tag for keys is purpose-built to be hard to remove, making it safer around children. They don't have the high-precision capabilities as more expensive finder tags. $16.59 at Amazon Apple AirTags been a game changer in my life, saving me countless hours searching for my keys, wallet, and passport. But as handy as they are, they're not without their flaws. From a

Topics: battery finder tag wallet zdnet

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How to maximize your Windows 11 PC's battery life in 9 easy steps

zdnet.com Ed Bott 2025-07-28 22:54:00

Kerry Wan/ZDNET Over the years, Windows PCs have gotten considerably more capable of squeezing a full day of work out of a laptop battery, but there's still a certain level of anxiety that comes with disconnecting from a fixed power source. That's especially true if you have an older PC that's lost some of its battery capacity with age. Also: Your complete Windows 11 upgrade guide: Everything to know - before you ditch Windows 10 Reducing battery anxiety doesn't require drugs or meditation. A

Topics: battery life power report windows

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One of the most battery-efficient laptops I've tested this year is also one of the most affordable

zdnet.com Kyle Kucharski 2025-07-28 21:00:00

ZDNET's key takeaways The base model of Acer's Aspire 14 AI normally retails for $699. It has a fantastic battery and some of the latest hardware: all for a very approachable price point. I suggest opting for the OLED, since the low-end display isn't the best. View now at Amazon View now at Costco more buying choices At Costco, the Acer Aspire 14 AI with an Intel Core Ultra 7 CPU is on sale for $700. Act fast because this deal ends on July 27. I went hands-on with Acer's Aspire Go 15 last ye

Topics: 14 acer ai aspire battery

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Pixel Watch 4 battery upgrade is coming, but don’t expect magic

androidauthority.com Unknown 2025-07-29 13:00:16

TL;DR Google’s next-generation Pixel Watch models could get a modest battery capacity increase. The 41mm Pixel Watch 4 may arrive with a 327mAh battery, and the 45mm Watch 3 getting a 459mAh component. Compared to Watch 3 models, that would represent a capacity increase of 7% and 9%, respectively. What do you expect from a new generation of wearables? Samsung just introduced its Galaxy Watch 8 series, and the company’s move to embrace that squircle design across the entire lineup has proven c

Topics: 45mm battery google pixel watch

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The best fitness trackers for 2025

engadget.com Unknown 2025-07-29 13:01:25

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . If you're looking to get fit, sleep better or just keep a closer eye on your health, a fitness wearable is a great place to start. Whether you're into intense workouts or just want to hit your step goal each day, the best fitness trackers available today can offer loads of helpful feat

Topics: battery fitbit fitness tracker trackers

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I replaced my Samsung S25 Ultra with the S25 Edge - here's why I opted for the slim model

zdnet.com Kerry Wan 2025-07-29 11:30:15

ZDNET's key takeaways The Samsung Galaxy S25 Edge currently sells for $999 for the 12GB of RAM and 512GB of storage configuration. With its sleek profile and solid hardware, this phone sets a new standards for mobile devices. You'll have to settle with subpar battery life and the absence of a telephoto lens due to the limited size. View now at Amazon View now at Best Buy View now at Samsung more buying choices At Amazon, you can pick up the 512GB Samsung Galaxy S25 Edge for just $920 (that's

Topics: battery edge phone s25 samsung

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One of the most battery-efficient I've tested this year is also one of the most affordable

zdnet.com Kyle Kucharski 2025-07-29 12:00:15

ZDNET's key takeaways The base model of Acer's Aspire 14 AI normally retails for $699. It has a fantastic battery and some of the latest hardware: all for a very approachable price point. I suggest opting for the OLED, since the low-end display isn't the best. View now at Amazon View now at Costco more buying choices At Costco, the Acer Aspire 14 AI with an Intel Core Ultra 7 CPU is on sale for $700. Act fast because this deal ends on July 27. I went hands-on with Acer's Aspire Go 15 last ye

Topics: 14 acer ai aspire battery

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Deal: Anker SOLIX EverFrost 2 40L Smart Cooler hits new record-low price!

androidauthority.com Unknown 2025-07-29 22:36:46

Edgar Cervantes / Android Authority The Anker SOLIX EverFrost 2 40L smart cooler is one of my favorite appliances, but its $899.99 retail price makes it a hard-to-justify purchase. If you’ve been looking to get one, right now is your chance, as it is at a brand-new record-low price of $629.99, saving you $270 bucks! Buy the Anker SOLIX EverFrost 2 40L Smart Cooler for just $629.99 ($270 off) This offer is available from Amazon. We’re specifically referring to the 40L version. That said, the 58

Topics: 40l 99 battery cooler price

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I found the Android smartwatch with the best battery life (and it's not a Samsung or OnePlus)

zdnet.com Matthew Miller 2025-07-30 14:01:18

ZDNET's key takeaways The Mobvoi TicWatch Pro 5 Enduro is available in Obsidian black for $349 (but on sale for $175 at the time of writing). This Google Wear OS smartwatch offers long battery life, dual-display technology, and a sapphire glass display. The watch currently runs Wear OS 3.5 and is available in one larger size. View now at Amazon For the past couple of years, I've been switching between various Google and Samsung Galaxy Watch models to pair with my Android, as Google's Wear OS

Topics: battery display os watch wear

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Pixel 10 Pro Fold may not be skinny, but it might have a larger battery

androidauthority.com Unknown 2025-07-30 17:37:52

TL;DR The Pixel 10 Pro Fold is expected to have a slightly larger cover display. Google may have also increased the Fold’s battery capacity. The foldable should have a Tensor G5 chip with 16GB of RAM and 256GB, 512GB, and 1TB storage options. Recently, there has been a growing number of Pixel 10 series leaks as we inch closer to the eventual launch date. However, there isn’t nearly as much information about Google’s next foldable as there is about the rest of Pixel 10 family. That gets correc

Topics: 10 battery fold google pixel

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Latest Tech News

How to run an Arduino for years on a battery (2021)

EA's big reveal for its next Battlefield game may already be spoiled

I Tested the Inmotion V9 EUC, and It's Easily One of the Best Choices for Beginners

Anker 548 Power Bank hits record-low price: Portable, powerful, and works as a lantern

Leaked iPhone 17 Air battery capacity reveals new model’s biggest weakness

This Android wearable lasts for days, and left my Samsung Galaxy Watch in the dust

Anker SOLIX Everfrost 2 58L Electric Cooler hits record-low price, $340 off

Karl Urban is a wise-cracking Johnny Cage in Mortal Kombat II

Best MagSafe battery packs 2025: I tested the best options to boost your phone's battery

The First Trailer for ‘Mortal Kombat II’ Is a Johnny Cage-Filled Extravaganza

Watch Our Livestream Replay: Inside the AI Copyright Battles

Watch Karl Urban’s Johnny Cage Be a B-List Movie Star in This Faux Movie Trailer

GM and Redwood teaming up to make batteries for energy storage

GM teams up with Redwood Materials to power data centers with EV batteries

This phone has twice the battery capacity of the Galaxy S25 Edge and costs less than $200

The Galaxy Watch 8 gets a key battery health feature that more smartwatches need

Stranger Things 5’s first trailer promises an epic showdown

Finally, a smart ring that rivals my Oura 4 with no subscription fee

If you're over the expensive flagships, this $199 Motorola is a legit budget option

Nextflow: System for creating scalable, portable, reproducible workflows

I found an AirTag dupe that lasts twice as long (and works with Android)

How to maximize your Windows 11 PC's battery life in 9 easy steps

One of the most battery-efficient laptops I've tested this year is also one of the most affordable

Pixel Watch 4 battery upgrade is coming, but don’t expect magic

The best fitness trackers for 2025

I replaced my Samsung S25 Ultra with the S25 Edge - here's why I opted for the slim model

One of the most battery-efficient I've tested this year is also one of the most affordable

Deal: Anker SOLIX EverFrost 2 40L Smart Cooler hits new record-low price!

I found the Android smartwatch with the best battery life (and it's not a Samsung or OnePlus)

Pixel 10 Pro Fold may not be skinny, but it might have a larger battery

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