Last chance to enter The Hackaday Prize.

Embedding Wireless Charging into Your Laptop

Wireless charger in chromebook

Looking for a project to do [Jason Clark] thought it might be fun to integrate a spare wireless Qi charger into his HP Chromebook 14.

He started by cracking open the Qi charger — it’s held together by adhesive and four phillips screws hiding under the feet pads — all in all, not that difficult to do. Once the plastic is off, the circuit and coil are actually quite small making it an ideal choice for hacking into various things. We’ve seen them stuffed into Nook’s, a heart, salvaged for a phone hack…

Anyway, the next step was opening up the Chromebook. The Qi charger requires 5V at 2A to work, which luckily, is the USB 3.0 spec — of which he has two ports in the Chromebook. He identified the 5V supply on the board and soldered in the wires directly —  Let there be power!

While the coil and board are fairly small, there’s not that much space underneath the Chromebook’s skin, so [Jason] lengthened the coil wires and located it separately, just below the keyboard. He closed everything up, crossed his fingers and turned the power on. Success!

It’d be cool to do something similar with an RFID reader — then you could have your laptop locked unless you have your RFID ring with you!

Stuff Wireless Charging Into a Nook’s Crannies

Qi receiver for NookMany technologies that come about for one type of product make us want to extend it to other things. For instance, we’d like the ability to remotely unlock our front door when it’s raining or our hands are full. Once [MS3FGX] experienced Qi wireless charging with his Nexus 5, he wanted the ability to wirelessly charge all the things. The first gadget on the list was his Nook Simple Touch eReader, which he successfully retrofit with a Qi receiver.

Space is at a premium inside of most modern technology. As it turns out, there is a burgeoning market for shoving inductive charging receivers into things. [MS3FGX] decided to try a Qi receiver meant for a Samsung S3, and it actually fits very well behind the battery. He glued it down and then cut a channel in the battery tray for the wires.

[MS3FGX] went full hack with this one and wired it to the Nook’s USB port on the inside. He would have preferred a thinner wire, but used some from a 40-pin IDE cable with little trouble. After the operation was complete, he put it on the Qi pad and it started charging right away. To his delight, the battery increased 20% after an hour. And yes, he can still charge the Nook the traditional way without any issues.

If you want to add wireless charging to any phone cheaply and easily, we’ve got you covered.

Wireless Charging… Have a Heart

wireless heart charger

[Gal Naim] recently finished off an awesome Valentine’s day present for special someone. It’s a wireless charging heart for your phone!

He already had the Qi wireless charger but wasn’t much of a fan as it “looks so boring”. So he took it apart to salvage the charging circuit for his new project. As luck would have it, the Qi is very simple on the inside — all he had to do was lengthen the power wires to the coil. He then designed his heart in SolidWorks — Don’t forget to check out our 3D Printering tutorials on this — and printed it out in a nice candy apple red. To maximize the charging current he’s left the inductive loop on the outside so it can be as close to the phone as possible — he spray painted it red and it actually looks pretty cool!

The next step was adding the wireless charging capability to the phone, we’ve covered how to add this to any phone before, but for [Gal] it was as simple as cutting down the Qi Receiver card to fit in the phone.

[Read more...]

Follow

Get every new post delivered to your Inbox.

Join 91,198 other followers