In my project (imer for my enlarger) I use a MAX7219 controled through the LedControl library. In the sketch setup I have the follwing Lines:
lc.shutdown(0,false);
lc.setIntensity(0,10);
lc.clearDisplay(0);
DspLeft(Char_E, Char_Bl, Char_Bl);
The last line calls a subroutine to display certain characters in the display.
On startup the display remains blank (no sign) however. Only after I called a Reset routine it shows the required characters:
lc.shutdown(0,false);
lc.setIntensity(0,10);
lc.clearDisplay(0);
DspLeft(Char_E, Char_Bl, Char_Bl);
In my project (imer for my enlarger) I use a MAX7219 controled through the LedControl library. In the sketch setup I have the follwing Lines: lc.shutdown(0,false); lc.setIntensity(0,10); lc.clearDisplay(0); DspLeft(Char_E, Char_Bl, Char_Bl); The last line calls a subroutine to display certain characters in the display. On startup the display remains blank (no sign) however. Only after I called a Reset routine it shows the required characters: lc.shutdown(0,false); lc.setIntensity(0,10); lc.clearDisplay(0); DspLeft(Char_E, Char_Bl, Char_Bl);