i have read the other posts on this forum on the same subject but didnt feel they covered my subject well enough to keep me from a new thread.
well i want to build a big 16x16 or maybe 11X20 led matrix with only one color. i have read the http://www.arduino.cc/en/Tutorial/ShiftOut guide and it feels really logic. so i am thinking of just multiplying the circuit so for a 16x16 i would need about 32 shift registers which is fine as i love soldering :-) there is probably a lot of different approaches: ive looked on the charlieplexing methid but it seemed too unstable and dificult when you reach above 8x8 matrices. ive also looked on different matrixes with driverboards on them but these keeps me from my second point:
the whole matrix is to be modular and extendable. and it should be based on large pixels. ive thought about using glass blocks like in the blinkwall projects with the leds behind them.
the image above shows a really rough(please dont take this image too seriously i know it lacks data connections and resistors)sketch of the modular design. then you can click more rows to either extend horizontally or vertically as your wallet gets more money and your hands more freetime.
well so do anybody have anything to say to my idea of extending the original shiftout article on the arduino site to let me do 8x8+ matrices?
please dont submit kind links to different expensive solutions as i dont have the money to try them out anyway. i will try to keep to the registers, resistors arduino and soldering madness :-)
thanks for future reps! ;)