Category Archives: power

Cronk The Gonk Droid

The ‘Gonk’ droids from the Star Wars universe are easy to overlook, but serve the important function of mobile power generators. Here on Earth, [bithead942]’s life-size replica droid fulfills much the same purpose.

Cronk — functionally an oversized USB charging hub with a lot of bells and whistles — is remotely controlled by a modified Wii Nunchuck very controller similar to the one [bithead942] used to control his R2-D2. With the help of an Adafruit Audio FX Mini, an Adafruit Class D 20W amp, and two four-inch speakers, the droid can rattle off some sound effects as it blows off …read more

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Posted in Addafruit, droid, nunchuck, power, robots hacks, star wars, usb, wii | Leave a comment

Power Planer Brought Back To Life

Having the right tool for the right job is not always possible, but it’s an ideal that’s nice to try to live up to. The problem is that a lot of the time, the right tool is often very expensive. We have found lots of ways around this, though, from building our own CNC machines to finding new ways to electroplate metal. Sometimes, though, the right tool for the job doesn’t have to be improvised or built from scratch, it just falls in your lap.

Admittedly, [Sam]’s power planer didn’t literally fall into his lap, but he did pull this …read more

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Posted in dumpster diving, planer, power, repair diving, tool, tool hacks | Leave a comment

Innovating A Backyard Solar Battery System

Ever on the lookout for creative applications for tech, [Andres Leon] built a solar powered battery system to keep his Christmas lights shining. It worked, but — pushing for innovation — it is now capable of so much more.

The shorthand of this system is two, 100 amp-hour, deep-cycle AGM batteries charged by four, 100 W solar panels mounted on an adjustable angle wood frame. Once back at the drawing board, however, [Leon] wanted to be able track real-time statistics of power collected, stored and discharged, and the ability to control it remotely. So, he introduced a Raspberry Pi running …read more

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Posted in Arduino Hacks, ATmega168, battery, control, deep cycle, panel, power, Raspberry Pi, remote, solar, solar hacks | Leave a comment

3D-Printed Halbach Motor Part Two: Tuning, Testing

Building your own Halbach-effect brushless DC motor is one thing. Making sure it won’t blow up in your face another matter, and watching how [Christoph Laimer] puts his motor to the test is instructive.

You’ll remember [Christoph]’s giant 3D-printed BLDC motor from a recent post where he gave the motor a quick test spin. That the motor held together under load despite not being balanced is a testament to the quality of his design and the quality of the prints. But not wishing to tempt fate, and having made a few design changes, [Christoph] wisely chose to perform a static …read more

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Posted in BLDC, brushless DC motor, efficiency, FliteFest, halbach, Kv, misc hacks, power, rotor, stator, torque | Leave a comment

Helix Display Brings Snake Into Three Dimensions

Any time anyone finds a cool way to display in 3D — is there an uncool way? — we’re on board. Instructables user [Gelstronic]’s method involves an array of spinning props to play the game Snake in 3D.

The helix display consists of twelve props, precisely spaced and angled using 3D-printed parts, each with twelve individually addressable LEDs. Four control groups of 36 LEDs are controlled by the P8XBlade2 propeller microcontroller, and the resultant 17280 voxels per rotation are plenty to produce an identifiable image.

In order to power the LEDs, [Gelstronic] used wireless charging coils normally used for cell …read more

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Posted in display, encoder, hardware, helix, hologram, led hacks, power, prop, propeller, wireless | Leave a comment

When the Grid Goes Dark

If you lived through the Y2K fiasco, you might remember a lot of hype with almost zero real-world ramifications in the end. As the calendar year flipped from 1999 to 2000 many forecast disastrous software bugs in machines controlling our banking and infrastructure. While this potential disaster didn’t quite live up to its expectations there was another major infrastructure problem, resulting in many blackouts in North America, that reared its head shortly after the new millennium began. While it may have seemed like Y2K was finally coming to fruition based on the amount of chaos that was caused, the actual …read more

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Posted in blackout, breaker, california, crisis, electricity, enron, failure, Featured, grid, infrastructure, Interest, Original Art, outages, power, recloser | Leave a comment

Cordless Water Pump!

A water pump is one of those items that are uncommonly used, but invaluable when needed. Rarer still are cordless versions that can be deployed at speed. Enter [DIY King 00], who has shared his build of a cordless water pump!

The pump uses an 18 volt brushed motor and is powered by an AEG 18V LiPo battery. That’s the same battery as the rest of [DIY King]’s power tools, making it convenient to use. UPVC pipe was used for the impeller — with a pipe end cap for a housing. A window of plexiglass to view the pump in …read more

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Posted in battery, cordless, diy, how-to, motor, power, pump, tool, tool hacks, water | Leave a comment

Micro Wind Turbine For Hikers

[Nils Ferber] is a product designer from Germany. His portfolio includes everything from kitchen appliances to backpacks. One project, though, has generated a bit of attention. It’s a micro wind turbine aimed at long distance hikers.

Even on the trail, electronics have become a necessity. From GPS units to satellite phones, to ebook readers. Carrying extra batteries means more pack weight, so many hikers utilize solar panels. The problem is that when the sun is up, hikers are on the move – not very conducive to deploying a solar array. The Wind, however, blows all through the night.

[Nils] used …read more

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Posted in green hacks, hiking, power, usb charger, Wind turbine | Leave a comment

Hacking on the Weirdest ESP Module

Sometimes I see a component that’s bizarre enough that I buy it just to see if I can actually do something with it. That’s the case with today’s example, the ESP-14. At first glance, you’d ask yourself what AI Thinker, the maker of many of the more popular ESP8266 modules, was thinking.

The ESP-14 takes the phenomenally powerful ESP8266 chip and buries it underneath one of the cheapest microcontrollers around: the 8-bit STM8S003 “value line” chip. Almost all of the pins of the ESP chip are locked inside the RF cage’s metal tomb — only the power, bootloader, and serial …read more

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Posted in current, esp-14, ESP8266, forth, Hackaday Columns, home hacks, IoT, mains, mqtt, power, stm8s, transformer, wireless hacks | Leave a comment

Bitbanging Qualcomm Charge Controllers

With more and more manufacturers moving to USB-C, it seems as though the trusty USB port is getting more and more entrenched. Not that that’s a bad thing, either; having a universal standard like this is great for simplicity and interconnectability. However, if you’re still stuck with USB 2.0 ports on your now completely obsolete one-year-old phone, there’s still some hope that you can at least get rapid charging. [hugatry] was able to manipulate Qualcomm’s rapid charging protocol to enable it to work with any device.

The protocol in question is supposed to work only on supported devices. Namely, anything …read more

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Posted in charge, charging, handshake, peripherals hacks, power, qualcomm, quick, rapid, usb, USB 2.0 | Leave a comment