@jzvolanek & @ZinggJM: Thanks for your help!
Remapping SCK and DIN of the SPI with this line of code resolved the issue.
SPI.begin(13, 12, 14, 15);
bYe Martin
@jzvolanek & @ZinggJM: Thanks for your help!
Remapping SCK and DIN of the SPI with this line of code resolved the issue.
SPI.begin(13, 12, 14, 15);
bYe Martin