diff --git a/software/wordclock/platformio.ini b/software/wordclock/platformio.ini
index df650d6..09b9a24 100644
--- a/software/wordclock/platformio.ini
+++ b/software/wordclock/platformio.ini
@@ -30,6 +30,17 @@ lib_deps =
 	makuna/NeoPixelBus@^2.7.7
 	256dpi/MQTT@^2.5.1
 
+[env:ring]
+platform = espressif32
+board = esp32-c3-devkitm-1
+framework = arduino
+monitor_dtr = 0
+build_flags = -DDEBUG -DRING
+lib_deps = 
+  https://github.com/adafruit/RTClib.git
+  https://github.com/Makuna/NeoPixelBus.git
+  https://github.com/prampec/IotWebConf.git
+
 [env:nodo1]
 platform = espressif32
 board = pico32
diff --git a/software/wordclock/src/src/ClockFace.cpp b/software/wordclock/src/src/ClockFace.cpp
index a77825e..7a44e70 100644
--- a/software/wordclock/src/src/ClockFace.cpp
+++ b/software/wordclock/src/src/ClockFace.cpp
@@ -968,3 +968,26 @@ case 0:
   }
   return true;
 }
+
+
+
+
+
+bool RingClockFace::stateForTime(int hour, int minute, int second, bool show_ampm)
+{
+  if (hour == _hour && minute == _minute)
+  {
+    return false;
+  }
+  _hour = hour;
+  _minute = minute;
+
+  DLOGLN("update state");
+  clearDisplay();
+  int h = (hour%12)*2+((minute >= 30)?1:0);
+  updateSegment(h,0,1);
+  updateSegment(24+minute,0,1);
+
+
+  return true;
+}
\ No newline at end of file
diff --git a/software/wordclock/src/src/ClockFace.h b/software/wordclock/src/src/ClockFace.h
index c0aee54..7e9ad6f 100644
--- a/software/wordclock/src/src/ClockFace.h
+++ b/software/wordclock/src/src/ClockFace.h
@@ -29,7 +29,7 @@ class ClockFace
   const std::vector<bool> &getState() { return _state; };
 
   // Returns the index of the LED in the strip given a position on the grid.
-  uint16_t map(int16_t x, int16_t y);
+  virtual uint16_t map(int16_t x, int16_t y);
 
   // The first four LED are the corner ones, counting minutes. They are assumed
   // to be wired in clockwise order, starting from the light sensor position.
@@ -93,3 +93,13 @@ class ItalianClockFace : public ClockFace
 
   virtual bool stateForTime(int hour, int minute, int second, bool show_ampm);
 };
+
+
+class RingClockFace : public ClockFace
+{
+public:
+  RingClockFace(LightSensorPosition position) : ClockFace(position){};
+
+  virtual bool stateForTime(int hour, int minute, int second, bool show_ampm);
+  virtual uint16_t map(int16_t x, int16_t y) {return x;}
+};
\ No newline at end of file
diff --git a/software/wordclock/src/src/Iot.cpp b/software/wordclock/src/src/Iot.cpp
index d5ba716..de8ea72 100644
--- a/software/wordclock/src/src/Iot.cpp
+++ b/software/wordclock/src/src/Iot.cpp
@@ -1,3 +1,6 @@
+extern "C" {
+#include <esp32-hal-time.c>
+}
 #include "logging.h"
 #include "Iot.h"
 #include <IotWebConfESP32HTTPUpdateServer.h>
@@ -25,8 +28,6 @@
 #define HTTP_OK 200
 // NTP server.
 #define NTP_SERVER "pool.ntp.org"
-// When NTP is enabled, define how often to update the RTC.
-#define NTP_POLL_DELAY_SECONDS 86400 // Once a day is plenty enough.
 
 namespace
 {
@@ -223,7 +224,11 @@ body > div > div:last-child {\
     {
       DLOG("[INFO] Could not parse number value \"");
       DLOG(str);
-      DLOGLN("\".");
+      DLOG("\" ");
+      DLOG(min_value);
+      DLOG(" <, >");
+      DLOG(max_value);
+      DLOGLN(".");
       return default_value;
     }
     return parsed_value;
@@ -287,6 +292,9 @@ Iot::Iot(Display *display, RTC_DS3231 *rtc)
                    "style='border-width: 1px; padding: 1px;'"),
 
       time_group_("time_group", "Time"),
+      ntp_interval_param_(
+          "Refresh interval in hours for ntp  synchronization (requires WiFi)", "ntp_interval", ntp_interval_value_,
+          IOT_CONFIG_VALUE_LENGTH, "24", 1, 24,1, "data-controlledby='ntp_enabled' data-showon='1'"),
       ntp_enabled_param_(
           "Use network time (requires WiFi)", "ntp_enabled", ntp_enabled_value_,
           IOT_CONFIG_VALUE_LENGTH, "0", 0, 1, 1, "style='width: 40px;' data-labels='Off|On'"),
@@ -311,6 +319,7 @@ Iot::Iot(Display *display, RTC_DS3231 *rtc)
   this->ldr_sensitivity_value_[0] = '\0';
   this->color_value_[0] = '\0';
   this->ntp_enabled_value_[0] = '\0';
+  this->ntp_interval_value_[0] = '\0';
   this->timezone_value_[0] = '\0';
   this->mqtt_enabled_value_[0] = '\0';
   this->mqtt_server_value_[0] = '\0';
@@ -330,32 +339,37 @@ void Iot::clearTransientParams_()
 // workaround of representing booleans as 0 or 1 integers.
 void Iot::updateClockFromParams_()
 {
-  switch (parseNumberValue(clockface_language_value_, 0, 10, 0))
-  {
-  case 1:
-  {
-    display_->setClockFace(&clockFaceNL);
-    DLOGLN("Language set to Dutch");
-    break;
-  }
-  case 2:
-  {
-    display_->setClockFace(&clockFaceFR);
-    DLOGLN("Language set to French");
-    break;
-  }
-  case 3:
-  {
-    display_->setClockFace(&clockFaceIT);
-    DLOGLN("Language set to Italian");
-    break;
-  }
-  default:
-  {
-    display_->setClockFace(&clockFaceEN);
-    DLOGLN("Language set to English");
-    break;
-  }
+  switch(parseNumberValue(clockface_language_value_, 0, 10, 0)) {
+    case 1:
+    {
+      display_->setClockFace(&clockFaceNL);
+      DLOGLN("Language set to Dutch");
+      break;
+    }
+    case 2:
+    {
+      display_->setClockFace(&clockFaceFR);
+      DLOGLN("Language set to French");
+      break;
+    }
+    case 3:
+    {
+      display_->setClockFace(&clockFaceIT);
+      DLOGLN("Language set to Italian");
+      break;
+    }
+    case 4:
+    {
+      display_->setClockFace(&clockFaceRING);
+      DLOGLN("Language set to Ring");
+      break;
+    }
+    default:
+    {
+      display_->setClockFace(&clockFaceEN);
+      DLOGLN("Language set to English");
+      break;
+    }
   }
 
   display_->setColor(
@@ -363,6 +377,7 @@ void Iot::updateClockFromParams_()
   display_->setShowAmPm(parseBooleanValue(show_ampm_value_));
   display_->setSensorSentivity(parseNumberValue(ldr_sensitivity_value_, 0, 10, 5));
 
+  this->ntp_poll_interval_ = parseNumberValue(ntp_enabled_value_, 1,24,24);
   if (parseBooleanValue(ntp_enabled_value_))
   {
     ntp_poll_timer_.start();
@@ -381,7 +396,7 @@ void Iot::setup()
 
   ntp_poll_timer_.setup([this]()
                         { maybeSetRTCfromNTP_(); },
-                        NTP_POLL_DELAY_SECONDS);
+                        ntp_poll_interval_*60*60);
 
   this->show_ampm_value_[0] = '\0';
   this->ldr_sensitivity_value_[0] = '\0';
@@ -407,6 +422,7 @@ void Iot::setup()
   iot_web_conf_.addParameterGroup(&display_group_);
 
   time_group_.addItem(&ntp_enabled_param_);
+  time_group_.addItem(&ntp_interval_param_);
   time_group_.addItem(&timezone_param_);
   time_group_.addItem(&manual_time_param_);
   iot_web_conf_.addParameterGroup(&time_group_);
@@ -504,6 +520,9 @@ void Iot::maybeSetRTCfromNTP_()
   }
 
   int tz = parseNumberValue(timezone_value_, 0, 459, 0);
+#if SNTP_GET_SERVERS_FROM_DHCP || SNTP_GET_SERVERS_FROM_DHCPV6
+  sntp_servermode_dhcp(1); 
+#endif
   configTzTime(posix[tz], NTP_SERVER);
 
   struct tm timeinfo;
@@ -520,7 +539,10 @@ void Iot::maybeSetRTCfromNTP_()
     digitalWrite(LED_PIN, HIGH);
 #endif
 
-  rtc_->adjust(DateTime(timeinfo.tm_year, timeinfo.tm_mon, timeinfo.tm_mday, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec));
+  if (get_rtc_found()) {
+    rtc_->adjust(DateTime(timeinfo.tm_year, timeinfo.tm_mon, timeinfo.tm_mday,
+                          timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec));
+  }
   DLOG("RTC set to:");
   DLOGLN(&timeinfo, "%A, %B %d %Y %H:%M:%S");
   DLOG("Timezone:");
@@ -529,23 +551,49 @@ void Iot::maybeSetRTCfromNTP_()
 
 void Iot::setRTCfromConfig_()
 {
-  const DateTime now = rtc_->now();
-  uint16_t year = now.year();
-  uint8_t month = now.month();
-  uint8_t day = now.day();
-  uint8_t hour = now.hour();
-  uint8_t minute = now.minute();
-  uint8_t second = now.second();
-  bool datetime_changed = false;
-
-  if (manual_time_value_[0] != 0 && parseTimeValue(manual_time_value_, &hour, &minute, &second))
-  {
-    datetime_changed = true;
-  }
+  if (get_rtc_found()) {
+    const DateTime now = rtc_->now();
+    uint16_t year = now.year();
+    uint8_t month = now.month();
+    uint8_t day = now.day();
+    uint8_t hour = now.hour();
+    uint8_t minute = now.minute();
+    uint8_t second = now.second();
+    bool datetime_changed = false;
+
+    if (manual_time_value_[0] != 0 &&
+        parseTimeValue(manual_time_value_, &hour, &minute, &second)) {
+      datetime_changed = true;
+    }
 
-  if (datetime_changed)
-  {
-    rtc_->adjust(DateTime(year, month, day, hour, minute, second));
+    if (datetime_changed) {
+      rtc_->adjust(DateTime(year, month, day, hour, minute, second));
+    }
+  } else {
+    uint16_t year = 0;
+    uint8_t month = 0;
+    uint8_t day = 0;
+    uint8_t hour = 0;
+    uint8_t minute = 0;
+    uint8_t second = 0;
+    if (manual_time_value_[0] != 0 &&
+        parseTimeValue(manual_time_value_, &hour, &minute, &second)) {
+      struct tm timeinfo = {0, };
+      if (!getLocalTime(&timeinfo))
+      {
+        DLOG("Local time invalid. set some 'usable' data");
+        timeinfo.tm_year = (2016 - 1900)+1;
+        timeinfo.tm_mon = 1;
+      }
+      timeinfo.tm_hour = hour;
+      timeinfo.tm_min = minute;
+      timeinfo.tm_sec = second;
+      time_t t = mktime(&timeinfo);
+      struct timeval tv;
+      tv.tv_usec = 0;
+      tv.tv_sec = t;
+      settimeofday(&tv, NULL);
+    }
   }
 }
 
@@ -650,4 +698,4 @@ void Iot::mqttMessageReceived_(String &topic, String &payload)
     // color_value_, payload.c_str(),
     // IOT_CONFIG_VALUE_LENGTH);
   // iot_web_conf_.saveConfig();
-}
\ No newline at end of file
+}
diff --git a/software/wordclock/src/src/Iot.h b/software/wordclock/src/src/Iot.h
index 2aa8621..a895ee8 100644
--- a/software/wordclock/src/src/Iot.h
+++ b/software/wordclock/src/src/Iot.h
@@ -29,6 +29,10 @@ class Iot
   void setup();
   void loop();
 
+  // accessor for rtc_found
+  bool get_rtc_found() { return rtc_found_; }
+  void set_rtc_found(bool b) { rtc_found_ = b; }
+
 private:
   // Clears the values of transient parameters.
   void clearTransientParams_();
@@ -75,8 +79,11 @@ class Iot
 
   // RTC.
   RTC_DS3231 *rtc_ = nullptr;
+  bool rtc_found_ = false;
+
 
-  // NTP poll timer.
+  // NTP poll timer;
+  int ntp_poll_interval_ = 24;
   Timer ntp_poll_timer_;
 
   // Whether to reboot the ESP (after config updates if MQTT is enabled).
@@ -145,6 +152,11 @@ class Iot
   // MQTT password value.
   char mqtt_password_value_[IOT_CONFIG_VALUE_LENGTH];
 
+  // Enables the ntp interval.
+  IotRangeValueParameter ntp_interval_param_;
+  // Value of the ntp interval setting option.
+  char ntp_interval_value_[IOT_CONFIG_VALUE_LENGTH];
+
   // Config form groups.
   iotwebconf::ParameterGroup time_group_;
   iotwebconf::ParameterGroup display_group_;
diff --git a/software/wordclock/src/src/clockfaces.h b/software/wordclock/src/src/clockfaces.h
index 35e7f02..c6a54cb 100644
--- a/software/wordclock/src/src/clockfaces.h
+++ b/software/wordclock/src/src/clockfaces.h
@@ -10,4 +10,5 @@ auto position = ClockFace::LightSensorPosition::Bottom;
 EnglishClockFace clockFaceEN(position);
 FrenchClockFace clockFaceFR(position);
 DutchClockFace clockFaceNL(position);
-ItalianClockFace clockFaceIT(position);
\ No newline at end of file
+ItalianClockFace clockFaceIT(position);
+RingClockFace clockFaceRING(position);
\ No newline at end of file
diff --git a/software/wordclock/src/src/nodo.h b/software/wordclock/src/src/nodo.h
index af36503..1f85ea7 100644
--- a/software/wordclock/src/src/nodo.h
+++ b/software/wordclock/src/src/nodo.h
@@ -11,4 +11,9 @@
 #define LDR_PIN 1
 #define NEOPIXEL_PIN 0
 #endif
+#else
+#ifdef RING
+#define NEOPIXEL_PIN 1
+#define LDR_PIN 2
+#endif // RING
 #endif
diff --git a/software/wordclock/src/wordclock.cpp b/software/wordclock/src/wordclock.cpp
index 43cf04a..d4947ae 100644
--- a/software/wordclock/src/wordclock.cpp
+++ b/software/wordclock/src/wordclock.cpp
@@ -20,6 +20,7 @@
 #include "src/Iot.h"
 #include "src/nodo.h" // Nodo stuff
 RTC_DS3231 rtc;
+boolean rtc_found = false;
 
 // TODO: refactor so we don't need to initialize another clockface here.
 #ifdef NODO
@@ -42,12 +43,16 @@ void setup()
 #ifdef SDA_PIN
   Wire.begin(SDA_PIN, SCL_PIN);
 #endif
-  bool result = rtc.begin(); // pins for RTC swapped over on V1.0
-  DCHECK(result, "RTC didn't start");
-  if (rtc.lostPower())
-  {
-    DCHECK("RTC lost power. Battery was removed ?");
+  rtc_found = rtc.begin(); // pins for RTC swapped over on V1.0
+  if (rtc_found) {
+    DLOG("RTC detected");
+    if (rtc.lostPower()) {
+      DCHECK("RTC lost power. Battery was removed ?");
+    }
+  } else {
+    DLOG("RTC not found");
   }
+  iot.set_rtc_found(rtc_found);
 
   display.setup();
   iot.setup();
@@ -58,8 +63,20 @@ void loop()
 {
   long ts_now = millis();
   if ((ts_now - last_rtc_update) > 99) {
-    DateTime now = rtc.now();
-    display.updateForTime(now.hour(), now.minute(), now.second());
+    if ( rtc_found ) {
+      DateTime now = rtc.now();
+      display.updateForTime(now.hour(), now.minute(), now.second());
+    } else {
+      struct tm timeinfo;
+      // Get the local time from the esp's rtc.
+      if (getLocalTime(&timeinfo)) {
+        auto now = DateTime(timeinfo.tm_year, timeinfo.tm_mon, timeinfo.tm_mday,
+                            timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
+        display.updateForTime(now.hour(), now.minute(), now.second());
+      } else {
+        display.updateForTime(0, 0, 0);
+      }
+    }
     last_rtc_update = ts_now;
   }