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Turn a Flashlight into a Long-Lasting Mobile Device Charger. Saw this on Adafruit yesterday (hence the reference at the end of the article) and went to my local hackerspace to print the part. Works pretty well and since the mag-lite has a button on it, the mintyboost doesn't slowly drain your batteries (like it doses in the tin with the AAs). I started using it last night and I'm going to see how long it will maintain my phone without using a wall outlet. The only slight issue is that the hole for the USB does not account for the flare out on the front of the port. So, if you grab a fresh mintyboost, see if you can get the USB in before you solder it to the board. Otherwise, you can bend the port flat, push it through, and then push it back. I don't recommend reshaping the hole because you would have a loose hole in the end. Also, make sure to put the ring that holds to bulb case down over the wires before you solder them to the bulb housing.

Photo Album. Add an Automatic Cooling System to Your Entertainment Center. The Whirlwind - An iPhone horn speaker and stand that fits in you wallet! In a deep "fit for infomercial" voice... "Have you ever found yourself in the NEED to share a video from your cellphone with other people, but the sound... was.. just to LOW!! The revolutionary WALLET SIZED Whirlwind Speaker and stand will come to the rescue! " He he, sorry I just couldn't help myself :D Joke aside, sometimes I have found myself sharing a video with family and friends, and yes, sometimes the volume is just a bit low. Well, it turned out that I could. How does it work? And how does it sound? Well, in "get you wife and kids to listen to it" tests, it makes the sound out of my iPhone seem twice as loud and deeper.

So, If you use it in a noisy place (like a restaurant) you will be able to hear you video, but without getting the next table to complain. Now, I'm including the "bone white" version of the Whirlwind, so that you can make your own versions (a steampunk version would look wicked) Note: It's trivial to modify the horn base to fit any cell, not just the iPhone. Blog Archive » Building a Wifi Radio – Part 1, Introduction. This article is the first of a series that will document the development of a low cost, open source wireless streaming internet radio receiver. All construction details, including schematics, source code, and even the design process itself will be documented on this blog. Comments and (constructive) criticism are welcome. Click here to post a comment. Table of Contents: Some background: According to Wikipedia, in 1993 the first internet radio program began distribution.

Today, most music playback software supports streaming radio in some way. iTunes features thousands of streaming radio stations and even supports Shoutcast streams so that users can easily add additional stations of their own. The beautiful thing about streaming radio is the huge diversity in programming that is available. In the past couple years, products have started to appear that mimic the form and function of a traditional radio, but play internet radio instead.

The Wifi Radio project: Requirements: Optional features: Finaly. Strong Electromagnet From An Old Transformer. I wound this coil by hand so I didn't get any pictures in the process. I used wire that I collected from other transformers and motors. So I ended up twisting together about 15 strands with a drill to make about 50ft (15m) of 22awg wire. The coil form has a divider between the coils that needs to be cut out in order to wind one big coil. This coil has 5 layers of wire in it. The layers must all be wound in the same direction and should be wound as neatly as possible . This coil will run at 5 volts. When using DC to run the magnet, you can estimate the current using a wire resistance chart & ohms law.