Blinkofant

WTF? Recently we got these *huge* LED walls. We disassmbled the monster and now we got ~300 LED panels Each of the 8*9 pixels consists of 5 LEDs = 360 red LEDs per panel 300 panels equals 100.000++ LEDs :) 1 panel full on needs 1.15 AMP @12V we don't know how to power them yet :) we are probably going to use the trafo we got out of the old displays. needs drehstrom outputs 140 AMP 12V weights 40kg+ actually we might use a lot of ATX powersupplies There is a mailinglist for the blinkofant project see: blinkofant@lists.metalab.at Pinout POUT EQU CENTRO ;the leftmost module will be connected to the POUT-port ATTENTION! The bit positions must not be changed! 8V, 5V, 12V, GND are not equipped with pins pin # function comments 1 data/clock ? comes back out here (Rückleitung Schieberegister) wurscht 2 data/clock ? comes back out here (Rückleitung Schieberegister) wurscht 3 DatLoad EQU 0 ;data bit for loading data and control data wurscht 4 ClkRing EQU 1 ;clock for shift left the whole line CLOCK !! 5 ClkLoad EQU 2 ;clock for shift left & loading all selected modules wurscht 6 ClkBlink EQU 3 ;clock for blinking (0...off, 1...on) clock for blinking of selected rows 7 ClkSteu EQU 4 ;clock for shift left & load control data from DatLoad wurscht 8 DatRing EQU 5 ;data bit for loading data during ClkRing DATA !! 9 Reset EQU 6 ;clear all control data wurscht 10 OnOff EQU 7 ;turn on/off the whole display (0...off, 1...on) turns off ALL the LEDs when pulled to ground When connecting ONE single panel the following pins need to be connected on the output side: pin 1 -> pin 8 pin 2 -> pin 3 Software Aktuelle Testfirmware für den Arduino liegt im GIT von 5uper.net ( git clone git@5uper.net:ledmatrix.git ) this is the magic: SPI.begin(); SPI.setBitOrder(LSBFIRST); SPI.setDataMode(SPI_MODE0); SPI.setClockDivider(SPI_CLOCK_DIV128); // biggest divider there is. ... SPDR = panelData[i]; while(!(SPSR & (1<<SPIF))); ein panel besteht aus 8*9 pixel (8 spalten mal 9 pixel) man schiebt 10 bits an daten rein für jede der 8 spalten 9 bits an/aus pro pixel + 1 bit ob diese spalte blinkt wenn man das blinkybit gesetzt hat kann man auf pin6 eine clock anlegen die die blinkenrate vorgibt

Albert Schultz ice arena LED wall  © kerky_oe 1 modul 4 module chained