Arduino Uno and de0nano problem

Projects Programming
11

the output when pin 0 connected

0
0
0
248
0
0
0
248
SPACE
0
0
255
0
0
0
0
255
SPACE
0
255
0
0
0
0
254
252
SPACE
0
0
0
0
0
255
0
0
SPACE
0
0
0
0
0
0
0
0
SPACE
0
0
0
0
0
0
0
0
SPACE
0
0
0
0
128
0
252
0
SPACE
0
0
128
0
0
0
0
0
SPACE