Michael Sven Ulf Karlsson

15 Flips | 1 Magazine | @michaelskar5i72 | Keep up with Michael Sven Ulf Karlsson on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Michael Sven Ulf Karlsson”

One man’s microwave oven is another man’s hobby electronics store

There are loads of Internet content depicting the usefulness of salvaged innards found in defunct microwave ovens. [Mads Nielsen] is an emerging new …

Prototyping a Raspberry Pi Home Cooling System

Ignacio Abel submitted this video of a prototype home cooling system based on Raspberry Pi. I’ll leave it to him to explain the system:<p>Night cooling is a very efficient way to save energy by cooling a house with the colder air at night. Most people don’t use it because it requires them to manually …

Supercap-Based Cell Phone Charger

[Barry] sent us a tip about a video from [electronupdate], describing an experimental cell phone charger. It’s a familiar issue: Your cell phone …

A Low-Cost Modular High Altitude Balloon Tracker with Mesh Networked Sensors

[Ethan] just tipped us about a project he and a few colleagues worked on last year for their senior design project. It’s a low-cost open …

Raspberry Pi Smart TV

[Tony] decided his “smart” LED TV wasn’t quite smart enough. So he stuffed a Raspberry Pi in it.<p>Upon opening the case of his 40″ Hisense Smart LED …

Open source PLC

In industrial applications, controlling relays, servos, solenoids, and the like isn’t just a matter of wiring in an Arduino and plugging in some …

Add Wireless Charging to Your Smartphone

Introduction: Add Wireless Charging to Your Smartphone<p>today more and more smartphones support wireless charging, whether it's out-of-the-box or via …

An autonomous boat across the Atlantic

While we may be waiting for unmanned drones to deliver a pizza, there’s already an unmanned ship plying the Atlantic on a transoceanic voyage. It’s …

Turn Any Printer Into a Google Cloud Printer with a Raspberry Pi

Unless you have a newer printer, chances are yours isn't ready for cloud printing. Thankfully, with just a $35 Raspberry Pi, How to Geek shows how …

Precise temperature control of a coffee urn

Hackaday Alum [Nick Schulze] decided to help out a friend who needed a controller to hold water at a precise temperature. Coffee guzzling hackers of …

Solar Camping on Steroids

[Rick] does <b>a lot</b> of camping, but he loves his electronics. So he’s now on his third iteration of his solar-powered battery box, and it packs quite …

Reverse Engineering the Sony Ericsson Vivaz High Resolution 640 x 360 Cellphone LCD

In our opinion, reverse engineering may be one of the best ways to tease your brain. [Andy] just did that by reverse engineering the Sony Ericsson …

39 Raspberry Pi 3D Scanner

[Richard] just posted an Instructable on his ridiculously cool 39 Pi 3D Scanner! That’s right. 39 individual Raspberry Pies with camera modules.<p>But …

Arduino Controlled Beer Brewing Machine!

[the_meatloaf] just put the final touches on his fully automated beer brewing machine using an Arduino.<p>The project was part of his computer …