On a Nodemcu, Is it possible to add a drop-down box to the html wifi setup page?

Projects Programming
8

definitions for the parameter (the options are listed in the html):

const char htmlAlarmLEDsComboBox[htmlAlarmLEDsComboBoxLength] PROGMEM = "<label for='ledalarmefect'>LEDs alarm effect</label><br/><select name='ledalarmefect' id='ledalarmefect'><option value='0'>none</option><option value='1'>Sunrise</option><option value='2'>Blink</option><option value='3'>Cycle</option><option value='4'>Pulse</option></select><script>document.getElementById('ledalarmefect').selectedIndex = %d;</script>";

char alarmLEDsComboBoxHtml[htmlAlarmLEDsComboBoxLength];
WiFiManagerParameter wmParamAlarmLEDs(alarmLEDsComboBoxHtml);

setting html and initial value into parameter in setup()

sprintf_P(alarmLEDsComboBoxHtml, htmlAlarmLEDsComboBox, (int) config.alarmLEDs);
wm.addParameter(&wmParamAlarmLEDs);

getting the value in the save callback and setting it to html again:

  String s = wm.server->arg("ledalarmefect");
  config.alarmLEDs = (AlarmLEDs) s.toInt();
  sprintf_P(alarmLEDsComboBoxHtml, htmlAlarmLEDsComboBox, (int) config.alarmLEDs);

if your options are dynamic, you can build the html in code