this pinout connection doesnt work
byte pin_rows[ROW_NUM] = {36,39,32,33}; // Row pin numbers
byte pin_column[COLUMN_NUM] = {19,4,34,35}; // Column pin numbers
this pinout connection doesnt work
byte pin_rows[ROW_NUM] = {36,39,32,33}; // Row pin numbers
byte pin_column[COLUMN_NUM] = {19,4,34,35}; // Column pin numbers