char c[9];
char cout[9];
bool out;
bool trig;
uint8_t pos;
uint8_t prepos;
uint8_t val = 0;
uint8_t outval = 0;
uint8_t preval;
uint16_t count;
uint8_t map[37];

int i;
for (i = 0; i < 10; i++)
  map[i] = i + 48;
map[10] = 95;
for (i = 0; i < 26; i++)
  map[i + 11] = i + 65;

if (inlet_left && !trig) {
  trig = 1;
  pos--;
}
if (inlet_right && !trig) {
  trig = 1;
  pos++;
}
if (inlet_inc && !trig) {
  trig = 1;
  val++;
}
if (inlet_dec && !trig) {
  trig = 1;
  val--;
}

if (inlet_clear && !trig) {
  trig = 1;
  memset(c, 0, 8);
  memset(cout, 0, 8);
  pos = 0;
}

if (inlet_delete && !trig) {
  trig = 1;
  if (strlen(c) > 1) {

    memmove(&c[pos], &c[pos + 1], (8 - pos));
    strcpy(cout, c);
    pos--;
  }
}

if (!inlet_left && !inlet_right && !inlet_inc && !inlet_dec && !inlet_delete &&
    !inlet_clear)
  trig = 0;

pos = pos % 8;
val = val % 37;
outval = map[val];

if (outval != preval) {
  c[pos] = outval;
  strcpy(cout, c);
  preval = outval;
}

if (count)
  count--;
else {
  count = 2000;
  out = !out;
  if (out)
    cout[pos] = 29;
  else
    cout[pos] = c[pos];
}

if (pos != prepos) {
  prepos = pos;
  strcpy(cout, c);
}

outlet_display = &cout[0];
outlet_string = &c[0];