I love how some scam products put so much effort into creating documentation and claims that you think there must be some validity behind them. Have a look at the inside of the Acoustic Energizer by IPC. Nice looking case, documentation looks impressive. As long as you don’t take a screwdriver to it and peek inside I am sure your music will sound better than ever. 🙂 “How does Acoustic Energizer
Great Scott used MIT App Inventor to get connected using Bluetooth from his phone to his project board. The board uses  some power mosfets to perform some extreme over heating of some low value resistors. These resistors then ignite some fuse cord which is used to light the fireworks!
This is really sad that when a student like 14 year old Ahmed Mohamed shows off his passion for building electronic projects results in him getting arrested. He was resourceful and put his creation in a $5 box from target but apparently it made the project look like a suitcase bomb! He wants to leave the school and I don’t blame him. At least his electronic passion isn’t squashed,
If you have a few dead DVD players sitting on the shelf collecting dust you could rig up a quick and dirty power supply to make it into a burning laser. There are laser drivers available but what is the fun in that.
If you are in need of a great battery charger or want to learn some more about how a dedicated power management controller gets configured this project by K.C. Lee is worth a look. It uses the Microchip TC4426A Power Management IC to manage the charging and analyzing of two batteries. “This is a useful tool for determining the charge/discharge characteristics of batteries which help you reuse or for
When the power fails and you are stumbling around the house your flashlight batteries will inevitably be dead. A simple solution to this issue is to use a flashlight that doesn’t need batteries. With low current LEDs you can dynamically generate the power you need to light your path by just a few shakes. Of course you can purchase one but building one is much more fun! “Materials needed: Small
Using an old hard drive, some 1 watt LEDs, a complete redesign of the hard drive motor drive circuit and an Arduino Marcin Gosiewski (damago1) has built a great looking clock. The display is nice and compact since he is using a 3.5 inch hard drive as his base. “The project involves controlling HDD motor (3 wire brushless dc electric type BLDC) using open loop control without feedback, and using back
