K8055 - LD3 off

Kits PC Related Projects
1

I recently acquired a K8055 and assembled it.
When I plug it into a USB port

  • LD8 not blinks twice
  • LD3 is off

My pc recognizes the card.

Any ideas out there?
Thanks

2

Here is the link to the downloads page: velleman.eu/distributor/supp … 8055&type=
Please download and extract the file: “Complete SDK Pack (Rev 4.0)”.
There in the folder \Demo is the program K8055_Demo.exe.
Run it.
Set the check boxes SK5 and SK6 according to the jumper SK5 and SK6 settings and then click the “Connect” button.
What is the response text next to this button?

3

Hello

Thanks. It’s okay now. I had to change the polarity of the LED … Anyway, it seems to me that the scheme that accompanies the kit is not entirely clear.

pf