miniPOV with avr Tiny2313
@ August 28, 2010
Displays a message on move
URL to more information:
Time to build:
23 hours
Cost to build:
$10
Oh I forgot to tell some word about it...
Upper there are 2 link... I used the schematic and the miniPOV.exe program for codeing....
Better said just copied the code and aded the #define F_CPU8000000UL :)
I think I should add a simple 1 second delay on because as I push the button the avr gets power and starts the program which doesn't gets enough time for the internal RC to calm down cause it is 8MHz with 14CK and 65ms :|
I didn't use as much resistors as were in schematic just made the ground of the LEDs common and put there a big hugh 600-800Ohm resistor... :D
Made on protoboard, wire are from an IDE cable... thats all :D
@ Sun, 2010-08-29 03:27
Nice, one of my first
Nice, one of my first microcontroller projects was a little reprogrammable PoV writer =)
Adding a small tilt/mercury switch to the project allows you to trigger a message/image when you move, which can be quite cool too, and allows you to make things like simple multi-frame animations.
BTW in most cases using a single current limiting resistor for an LED array is a bad idea, since the current will vary with the number of LEDs on at the time, which obviously is not consistent in a project like this. If you're lucky and your LEDs were all manufactured in the same batch the effect probably won't be too bad, but in many cases you can see quite a big difference in the brightness of the individual LEDs when several are on together.
@ Sun, 2010-08-29 13:28
it was just a fast through
it was just a fast through up project... the LEDs were... hm :D stolen from within a lighter, or much more lighters :D