//Custom LCD Characters
byte grad[8] = {
  0b01100,
  0b10010,
  0b10010,
  0b01100,
  0b00000,
  0b00000,
  0b00000,
  0b00000
};

byte sollwert[8] = {
  0b00000,
  0b00000,
  0b01111,
  0b00011,
  0b00101,
  0b01001,
  0b10000,
  0b00000
};

byte batterie[8] = {
  0b01110,
  0b11011,
  0b10001,
  0b10001,
  0b10001,
  0b10001,
  0b10001,
  0b11111
};