I have coded a gradient generator in C++. It generates beautiful bitmaps as above. Although I have not made the source code available, the executable can be found here. You can ask me for Binaries for other platforms as well (on email@example.com). I will try to reply in 48 hours.
Recently, edX published my learner story in their blog. You can find it here.
I designed and developed a display that works on the principles of Persistance of Vision. It uses an ATtiny2313 to drive 7 leds. You might have noticed that, this is the same circuit board as in the Make your own PCB video.
Here you will find some photos:
The circuit board
Some cool images generated by moving the display in front of the camera (0.5 second exposure in a dark room)
If you held back, just because of the cost and hassles of getting a Circuit Board printed by the professionals, look no further!
The video below shows you how you can make Printed Circuit Boards, for your electronics projects, right at home, with simple tools, and inexpensive materials. The Toner-Transfer method is described, as it is the simplest of the existing methods.
Although this method can be used only for 1 layered (2 layered at the most) PCB’s, and it may not yield the professionalism of the boards that you see with kits, it is really easy, and works really well for most designs.
The best part is, you do not have to know how a circuit works before making it. just download a design off the internet, and you are good to go!
Tools/Materials you will require:
# Access to a Laser Printer
# Copper Plated Plastic Board
# Clothes Iron
# Nail Polish Remover + Paper Towels
# Kitchen Scrub
# Ferric Chloride Powder
# Glass container
# Drilling Machine/Hand Operated Drill
# 0.8 or 1mm bits
# Soldering Iron + Solder + Components
If you are into Electronics, all of these will be accessible to you, with the possible exception of Ferric Chloride Powder. It can be bought off Online Stores, or Chemical Stores near you.
# The concentration of FeCl3 solution mentioned in the video is relatively safe to work with. Higher Concentrations although help to increase speed of etching, they are corrosive. It mandates the use of rubber gloves. Do consider your safety!
# Do not Iron the board for too long. The plastic may melt.
This is the circuit board from POV Display
No need to pay for online counter strike servers anymore. Host games on you own computer..