Alan Parekh

RGB LED Circuit using the TLC5947

If you are wanting to play with a bank of LEDs have a look at the TLC5947, it outputs 24 channels of constant current LED outputs. This RGB LED Circuit uses the TLC5947 and demonstrates how capable it is. If you want to have a look at the code for some ideas you can see the project page here. “It uses one TLC5947 per 24 channels, which does 12-bit PWM

Shoot a Bullet through a Spinning Propeller Blade

It is sometimes fun to think of a cool problem and come up with an electronic solution. Have a look at this project that Matt Meerian from Home Brew Electronics put together, it is a way to Shoot a Bullet through a Spinning Propeller Blade. This was a common problem years ago when planes needed to have a forward mounted gun shoot through a center propeller. Matt thought it would

Tilt Screen Laptop Hack

Check out the latest Ben Heck Show where Ben makes converts a cheap laptop into an airplane friendly laptop. This is to prevent the guy sitting in front of you from tilting your screen when they lean their chair back. After the hack the screen is able to be tilted up and over the keyboard giving you tons of clearance between you and the objects in front of you. Only

RGB LED Tetris Game

Stanislav Ponomarev has been working hard with his NerdKit Microcontroller. He developed an impressive RGB LED Tetris Game. I think this version is probably more fun than the original version. 🙂 I could just imagine scaling this up and playing it on the side of an apartment building with each window acting as a pixel of the game. Stanislav will send in the code and schematics as soon as they

Inside the Microsoft Kinect

iFixit has cracked open a Microsoft Kinect and wow is there a ton of technology packed in there. This sensor bar is the total opposite of the Wii Sensor Bar which has virtually no tech in it. After seeing what makes the Kinect tick I totally understand why Adafruit Industries has offered a $2000 bounty for the first person to write some open source drivers for the Kinect. I have

Name the Thing Contest - 156

The prize this week is a pair of wire strippers, this will this will help you prep your cables to be attached to your next great creation. This contest will run for one week (November 6 – November 12, 2010). Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can be done with it. Please do not give

Printed Circuit Board Fault Detection using Pulse Injection

Doug Smith demonstrates how to use Pulse Injection to find problems with printed circuit boards. He built a small probe that allows him to poke around all areas of the board to see if there is any areas which are sensitive. This method is probably not economical for a hobbyist to use unless you can find the Fisher PG EFT that Doug used in the Apex Electronics bone yard for