Arduino and LED Painter

hi i purchased a led painter a few days ago and have had no luck connecting it to the arduino, the led painter uses the tlcs just as i used the tlcs on a bread board and they worked fine, it just wont work with the led painter.

if anyone has used the painter before, could u send me some pictures of your wiring, or if anyone has any ideas it would be much help.

the data sheet is here Welcome brilldea.com - BlueHost.com

Joel

The pin config is

  • TLC pin 28 -> LED (channel 1) short leg (cathode) -> LED1 long leg (anode) -> +5V
  • TLC pin 1 -> LED (channel 2) cathode - anode -> +5V
  • ...
  • TLC pin 15 (lower right pin if the u is on top) - > LED (channel 16)
  • TLC pin 16 (XERR) -> nothing
  • TLC pin 17 (SOUT) -> nothing
  • TLC pin 18 (GSCLK) -> Arduino pin 3
  • TLC pin 19 (DCPRG) -> +5V
  • TLC pin 20 (IREF) - > 2.2Kohm resistor to GND (this determines max current through each output, Riref value = 39.06 / (desired current in A))
  • TLC pin 21 -> +5V
  • TLC pin 22 -> GND
  • TLC pin 23 (BLANK) -> Arduino pin 10
  • TLC pin 24 (XLAT) -> Arduino pin 9
  • TLC pin 25 (SCLK) -> Arduino pin 6
  • TLC pin 26 (SIN) -> Arduino pin 4
  • TLC pin 27 (VPRG) -> GND

Make sure you have a resistor (see above) between Iref (pin 20) and ground, and also that VPRG (pin 27) is grounded. Hope this helps!

and have had no luck connecting it to the arduino

Luck does not enter it to it. However unless you show what you are doing in terms of a schematic and how you are driving it by posting your code (use the # icon) we have little chance of knowing what is wrong.