SparkFun stencil and solder paste class notes

stencil

Hobby electronics manufacturer SparkFun has started offering various classes at their Boulder, CO facility. [Landon] has been attending as many as possible and posted about his experience during their Stencil and Solder Paste class. Solder paste is used when manufacturing boards with a reflow oven. He took quite a few pictures of the process and posted notes and audio. … Read the rest

Hackit: Hackable Bluetooth bracelet?

bluetooth-1

We spotted this odd piece of geek couture on DVICE today. It’s a bracelet that displays incoming calls via Bluetooth and also vibrates. The intended use is kinda interesting, but we wonder what else could be done with it. Could you update it with any text you want by creating fake caller ID messages? You could have your laptopRead the rest

Mac mini in an old Apple II disk drive

mac

Yo dawg, we heard you liked macs. [Charles] got sick of his Mac mini looking nice and pretty and decided to cram it into an old beige box. This old beige box just happened to be an old Apple II disk drive, so we guess that gives it some more street cred. The original disk drive sold in 1978 … Read the rest

Cell phone triggered fireworks

remote_trigger

[Mr. Hasselhoff] is using a disposable cell phone to trigger his fireworks. He has wired into the speaker leads for the speaker phone. When the phone rings, the current sets off a thyristor allowing for a battery pack to be discharged into a rocket fuse. These fuses heat up and ignite, so you can use them to light fireworks … Read the rest