Flickering OLED

Projects Programming
42 
 =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  0  cur =  0  Hz =  0
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -1  cur =  -1  Hz =  -1
  prev =  -2  cur =  -2  Hz =  -2
  prev =  -2  cur =  -2  Hz =  -2
  prev =  -2  cur =  -2  Hz =  -2
  prev =  -2  cur =  -2  Hz =  -2
  prev =  -3  cur =  -3  Hz =  -3
  prev =  -3  cur =  -3  Hz =  -3
  prev =  -3  cur =  -3  Hz =  -3