Geeky Valentine's Day! DIY geeky gift.

Valentine's Day is coming, and so be ready to make somethings for your lover:)

Listed out some of my own/friends projects, which may be useful for your valentine's day:

1. 2 hours Love Project




2. LED flower vase




3. Gorgeous LED Egg




4. Motion Activated Lamp (buy a cute lamp and modify it to be geeky ^_^)




5. Handmade Accessory with Ponoko Laser cut service.


Hope you all find useful:)

IR object tracking.

Using Infrared LED and receiver are the cheapest way to make an object detection sesnor, but you may require a lots of hard works. Luckily, Oddbot from "Let's make robots" worked very hard and give us a very good tutorial on IR object tracking. Source codes and circuit diagrams are included. Thanks OddBot.



Links:
http://letsmakerobots.com/node/4428

How Microcontroller BootLoader works?

Brumbarchris wrote an interesting artcile about MCU bootloader, it is time to read some techincal stuffs.
Read it