Allow up to 8 cycles to charge capacitor

* Allow for more errors during upgrade

* More instead of equals

frames/iskra_croatia.txt

@@ -0,0 +1,48 @@
+They actually use multiple frames, so this is a "fake" frame combining the two into one, but without checksum fields.
+
+7E 
+A0 BD 
+CF 02 23 03 00 00
+E6 E7 00 
+0F 00 03 46 3B 
+0C 07 E9 0C 13 05 17 37 28 00 FF C4 00
+
+02 21 
+09 08 39 32 30 32 39 36 39 31 
+09 04 17 37 28 00 
+09 05 07 E9 0C 13 05 
+06 00 6C 28 5A 
+06 00 4B 76 1A 
+06 00 20 B2 40 
+06 00 58 68 AA 
+06 00 57 A1 62 
+06 00 00 C7 48 
+06 00 17 EE D7 
+06 00 12 F5 5C 
+06 00 00 D9 6A 
+06 00 15 36 84 
+06 00 00 01 7E
+06 00 00 00 00 
+12 03 79 
+06 00 00 00 7F 
+06 00 00 00 BD 
+06 00 00 00 41 
+06 00 00 00 00 
+06 00 00 00 00 
+06 00 00 00 00 
+12 09 54 
+12 09 35 
+12 09 49 
+12 00 37 
+12 00 59 
+12 00 4D 
+06 00 00 43 62 
+01 01 
+  12 24 B8 
+01 01 
+  12 24 B8 
+01 01 
+  12 24 B8 
+03 01
+
+00 00 7E

lib/AmsConfiguration/src/AmsConfiguration.cpp

@@ -591,7 +591,6 @@ void AmsConfiguration::clearGpio(GpioConfig& config, bool all) {
 	config.tempAnalogSensorPin = 0xFF;
 	config.vccPin = 0xFF;
 	config.ledDisablePin = 0xFF;
-	config.powersaving = 0;
 
 	if(all) {
 		config.vccOffset = 0;
@@ -600,6 +599,7 @@ void AmsConfiguration::clearGpio(GpioConfig& config, bool all) {
 		config.vccResistorGnd = 0;
 		config.vccResistorVcc = 0;
 		config.ledBehaviour = LED_BEHAVIOUR_DEFAULT;
+		config.powersaving = 0;
 	}
 }
 

lib/AmsDecoder/src/DsmrParser.cpp

@@ -74,7 +74,7 @@ int8_t DSMRParser::parse(uint8_t *buf, DataParserContext &ctx, bool verified, Pr
         fromHex((uint8_t*) &crc, String((char*) buf+crcPos), 2);
         crc = ntohs(crc);
 
-        if(crc != crc_calc) {
+        if(crc > 0 && crc != crc_calc) {
             if(debugger != NULL) {
                 debugger->printf_P(PSTR("CRC incorrrect, %04X != %04X at position %lu\n"), crc, crc_calc, crcPos);
             }

lib/AmsDecoder/src/HdlcParser.cpp

@@ -32,7 +32,7 @@ int8_t HDLCParser::parse(uint8_t *d, DataParserContext &ctx) {
             return DATA_PARSE_BOUNDARY_FLAG_MISSING;
 
         // Verify FCS
-        if(ntohs(f->fcs) != crc16_x25(d + 1, len - sizeof *f - 1))
+        if(f->fcs > 0 && ntohs(f->fcs) != crc16_x25(d + 1, len - sizeof *f - 1))
             return DATA_PARSE_FOOTER_CHECKSUM_ERROR;
 
         // Skip destination address, LSB marks last byte
@@ -50,7 +50,7 @@ int8_t HDLCParser::parse(uint8_t *d, DataParserContext &ctx) {
         HDLC3CtrlHcs* t3 = (HDLC3CtrlHcs*) (ptr);
 
         // Verify HCS
-        if(ntohs(t3->hcs) != crc16_x25(d + 1, ptr-d))
+        if(t3->hcs > 0 && ntohs(t3->hcs) != crc16_x25(d + 1, ptr-d))
             return DATA_PARSE_HEADER_CHECKSUM_ERROR;
         ptr += 3;
 
@@ -69,7 +69,12 @@ int8_t HDLCParser::parse(uint8_t *d, DataParserContext &ctx) {
 
             if(buf == NULL) return DATA_PARSE_FAIL;
 
-            memcpy(buf + pos, ptr+3, ctx.length); // +3 to skip LLC
+            if((*ptr) == DATA_TAG_LLC) {
+                ptr += 3; // Skip LLC
+                ctx.length -= 3;
+            }
+
+            memcpy(buf + pos, ptr, ctx.length);
             pos += ctx.length;
 
             lastSequenceNumber++;
@@ -78,7 +83,12 @@ int8_t HDLCParser::parse(uint8_t *d, DataParserContext &ctx) {
             lastSequenceNumber = 0;
             if(buf == NULL) return DATA_PARSE_FAIL;
 
-            memcpy(buf + pos, ptr+3, ctx.length); // +3 to skip LLC
+            if((*ptr) == DATA_TAG_LLC) {
+                ptr += 3; // Skip LLC
+                ctx.length -= 3;
+            }
+
+            memcpy(buf + pos, ptr, ctx.length);
             pos += ctx.length;
 
             memcpy((uint8_t *) d, buf, pos);

lib/AmsFirmwareUpdater/include/AmsFirmwareUpdater.h

@@ -39,6 +39,8 @@
 #define AMS_UPDATE_ERR_SUCCESS_CONFIRMED 123
 
 #define UPDATE_BUF_SIZE 4096
+#define UPDATE_MAX_BLOCK_RETRY 25
+#define UPDATE_MAX_REBOOT_RETRY 12
 
 class AmsFirmwareUpdater {
 public:

lib/AmsFirmwareUpdater/src/AmsFirmwareUpdater.cpp

@@ -74,7 +74,7 @@ void AmsFirmwareUpdater::setUpgradeInformation(UpgradeInformation& upinfo) {
         #endif
         debugger->printf_P(PSTR("Resuming uprade to %s\n"), updateStatus.toVersion);
 
-        if(updateStatus.reboot_count++ < 8) {
+        if(updateStatus.reboot_count++ < UPDATE_MAX_REBOOT_RETRY) {
             updateStatus.errorCode = AMS_UPDATE_ERR_OK;
         } else {
             updateStatus.errorCode = AMS_UPDATE_ERR_REBOOT;
@@ -129,7 +129,7 @@ void AmsFirmwareUpdater::loop() {
             HTTPClient http;
             start = millis();
             if(!fetchFirmwareChunk(http)) {
-                if(updateStatus.retry_count++ == 3) {
+                if(updateStatus.retry_count++ > UPDATE_MAX_BLOCK_RETRY) {
                     updateStatus.errorCode = AMS_UPDATE_ERR_FETCH;
                     updateStatusChanged = true;
                 }

lib/HomeAssistantMqttHandler/include/HomeAssistantMqttHandler.h

@@ -79,6 +79,7 @@ private:
     void publishPriceSensors(PriceService* ps);
     void publishSystemSensors();
     void publishThresholdSensors();
+    void toJsonIsoTimestamp(time_t t, char* buf, size_t buflen);
 
     String boardTypeToString(uint8_t b) {
         switch(b) {

lib/HomeAssistantMqttHandler/json/ha1.json

@@ -1,4 +1,4 @@
 {
     "P" : %lu,
-    "t" : "%s"
+    "t" : %s
 }

lib/HomeAssistantMqttHandler/json/ha2.json

@@ -3,6 +3,6 @@
     "tPO" : %.3f,
     "tQI" : %.3f,
     "tQO" : %.3f,
-    "rtc" : "%s",
-    "t" : "%s"
+    "rtc" : %s,
+    "t" : %s
 }

lib/HomeAssistantMqttHandler/json/ha3.json

@@ -12,5 +12,5 @@
     "U1" : %.2f,
     "U2" : %.2f,
     "U3" : %.2f,
-    "t" : "%s"
+    "t" : %s
 }

lib/HomeAssistantMqttHandler/json/ha4.json

@@ -28,5 +28,5 @@
     "tPO1" : %.3f,
     "tPO2" : %.3f,
     "tPO3" : %.3f,
-    "t" : "%s"
+    "t" : %s
 }

lib/HomeAssistantMqttHandler/json/hadiscover.json

@@ -2,7 +2,7 @@
     "name" : "%s%s",
     "stat_t" : "%s%s",
     "uniq_id" : "%s_%s",
-    "obj_id" : "%s_%s",
+    "default_entity_id" : "sensor.%s_%s",
     "val_tpl" : "{{ value_json.%s | is_defined }}",
     "expire_after" : %d,
     "dev" : {

lib/HomeAssistantMqttHandler/src/HomeAssistantMqttHandler.cpp

@@ -28,7 +28,8 @@ void HomeAssistantMqttHandler::setHomeAssistantConfig(HomeAssistantConfig config
         snprintf_P(json, 128, PSTR("[%s] "), config.discoveryNameTag);
         sensorNamePrefix = String(json);
     } else {
-        deviceName = F("AMS reader");
+        snprintf_P(json, 128, PSTR("AMS reader"));
+        deviceName = String(json);
         sensorNamePrefix = "";
     }
     deviceModel = boardTypeToString(boardType);
@@ -52,20 +53,18 @@ void HomeAssistantMqttHandler::setHomeAssistantConfig(HomeAssistantConfig config
         deviceUrl = String(json);
     }
 
-    if(strlen(config.discoveryPrefix) > 0) {
-        snprintf_P(json, 128, PSTR("%s/status"), config.discoveryPrefix);
-        statusTopic = String(json);
-
-        snprintf_P(json, 128, PSTR("%s/sensor"), config.discoveryPrefix);
-        sensorTopic = String(json);
-
-        snprintf_P(json, 128, PSTR("%s/update"), config.discoveryPrefix);
-        updateTopic = String(json);
-    } else {
-        statusTopic = F("homeassistant/status");
-        sensorTopic = F("homeassistant/sensor");
-        updateTopic = F("homeassistant/update");
+    if(strlen(config.discoveryPrefix) == 0) {
+        snprintf_P(config.discoveryPrefix, 64, PSTR("homeassistant"));
     }
+
+    snprintf_P(json, 128, PSTR("%s/status"), config.discoveryPrefix);
+    statusTopic = String(json);
+
+    snprintf_P(json, 128, PSTR("%s/sensor"), config.discoveryPrefix);
+    sensorTopic = String(json);
+
+    snprintf_P(json, 128, PSTR("%s/update"), config.discoveryPrefix);
+    updateTopic = String(json);
     strcpy(this->mqttConfig.subscribeTopic, statusTopic.c_str());
 }
 
@@ -134,12 +133,7 @@ bool HomeAssistantMqttHandler::publishList1(AmsData* data, EnergyAccounting* ea)
     publishList1Sensors();
 
 	char pt[24];
-    memset(pt, 0, 24);
-    if(data->getPackageTimestamp() > 0) {
-        tmElements_t tm;
-        breakTime(data->getPackageTimestamp(), tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(data->getPackageTimestamp(), pt, sizeof(pt));
 
     snprintf_P(json, BufferSize, HA1_JSON, data->getActiveImportPower(), pt);
     return mqtt.publish(pubTopic + "/power", json);
@@ -150,12 +144,7 @@ bool HomeAssistantMqttHandler::publishList2(AmsData* data, EnergyAccounting* ea)
     if(data->getActiveExportPower() > 0) publishList2ExportSensors();
 
 	char pt[24];
-    memset(pt, 0, 24);
-    if(data->getPackageTimestamp() > 0) {
-        tmElements_t tm;
-        breakTime(data->getPackageTimestamp(), tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(data->getPackageTimestamp(), pt, sizeof(pt));
 
     snprintf_P(json, BufferSize, HA3_JSON,
         data->getListId().c_str(),
@@ -181,20 +170,11 @@ bool HomeAssistantMqttHandler::publishList3(AmsData* data, EnergyAccounting* ea)
     if(data->getActiveExportCounter() > 0.0) publishList3ExportSensors();
 
 	char mt[24];
-    memset(mt, 0, 24);
-    if(data->getMeterTimestamp() > 0) {
-        tmElements_t tm;
-        breakTime(data->getMeterTimestamp(), tm);
-        sprintf_P(mt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(data->getMeterTimestamp(), mt, sizeof(mt));
 
 	char pt[24];
     memset(pt, 0, 24);
-    if(data->getPackageTimestamp() > 0) {
-        tmElements_t tm;
-        breakTime(data->getPackageTimestamp(), tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(data->getPackageTimestamp(), pt, sizeof(pt));
 
     snprintf_P(json, BufferSize, HA2_JSON,
         data->getActiveImportCounter(),
@@ -212,12 +192,7 @@ bool HomeAssistantMqttHandler::publishList4(AmsData* data, EnergyAccounting* ea)
     if(data->getL1ActiveExportPower() > 0 || data->getL2ActiveExportPower() > 0 || data->getL3ActiveExportPower() > 0) publishList4ExportSensors();
 
 	char pt[24];
-    memset(pt, 0, 24);
-    if(data->getPackageTimestamp() > 0) {
-        tmElements_t tm;
-        breakTime(data->getPackageTimestamp(), tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(data->getPackageTimestamp(), pt, sizeof(pt));
 
     snprintf_P(json, BufferSize, HA4_JSON,
         data->getListId().c_str(),
@@ -307,13 +282,8 @@ bool HomeAssistantMqttHandler::publishRealtime(AmsData* data, EnergyAccounting*
 
     time_t now = time(nullptr);
 	char pt[24];
-    memset(pt, 0, 24);
-    if(now > 0) {
-        tmElements_t tm;
-        breakTime(now, tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
-    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":\"%s\""), pt);
+    toJsonIsoTimestamp(now, pt, sizeof(pt));
+    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":%s"), pt);
     
     json[pos++] = '}';
     json[pos] = '\0';
@@ -343,13 +313,8 @@ bool HomeAssistantMqttHandler::publishTemperatures(AmsConfiguration* config, HwT
 
     time_t now = time(nullptr);
 	char pt[24];
-    memset(pt, 0, 24);
-    if(now > 0) {
-        tmElements_t tm;
-        breakTime(now, tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
-    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":\"%s\""), pt);
+    toJsonIsoTimestamp(now, pt, sizeof(pt));
+    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":%s"), pt);
 	pos += snprintf_P(json+pos, BufferSize-pos, PSTR("}"));
 
     bool ret = mqtt.publish(pubTopic + "/temperatures", json);
@@ -421,25 +386,34 @@ bool HomeAssistantMqttHandler::publishPrices(PriceService* ps) {
     memset(ts1hr, 0, 24);
 	if(min1hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min1hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts1hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts1hr, sizeof(ts1hr));
 	}
 	char ts3hr[24];
     memset(ts3hr, 0, 24);
 	if(min3hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min3hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts3hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts3hr, sizeof(ts3hr));
 	}
 	char ts6hr[24];
     memset(ts6hr, 0, 24);
 	if(min6hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min6hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts6hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts6hr, sizeof(ts6hr));
 	}
 
     uint16_t pos = snprintf_P(json, BufferSize, PSTR("{\"id\":\"%s\",\"prices\":{\"import\":["), WiFi.macAddress().c_str());
@@ -468,7 +442,7 @@ bool HomeAssistantMqttHandler::publishPrices(PriceService* ps) {
     }
 
     pos--;
-    pos += snprintf_P(json+pos, BufferSize-pos, PSTR("],\"min\":%.4f,\"max\":%.4f,\"cheapest1hr\":\"%s\",\"cheapest3hr\":\"%s\",\"cheapest6hr\":\"%s\"}"),
+    pos += snprintf_P(json+pos, BufferSize-pos, PSTR("],\"min\":%.4f,\"max\":%.4f,\"cheapest1hr\":%s,\"cheapest3hr\":%s,\"cheapest6hr\":%s}"),
         min == INT16_MAX ? 0.0 : min,
         max == INT16_MIN ? 0.0 : max,
         ts1hr,
@@ -477,13 +451,8 @@ bool HomeAssistantMqttHandler::publishPrices(PriceService* ps) {
     );
     
     char pt[24];
-    memset(pt, 0, 24);
-    if(now > 0) {
-        tmElements_t tm;
-        breakTime(now, tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
-    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":\"%s\""), pt);
+    toJsonIsoTimestamp(now, pt, sizeof(pt));
+    pos += snprintf_P(json+pos, BufferSize-pos, PSTR(",\"t\":%s"), pt);
 
     json[pos++] = '}';
     json[pos] = '\0';
@@ -502,14 +471,9 @@ bool HomeAssistantMqttHandler::publishSystem(HwTools* hw, PriceService* ps, Ener
 
 	time_t now = time(nullptr);
 	char pt[24];
-    memset(pt, 0, 24);
-    if(now > 0) {
-        tmElements_t tm;
-        breakTime(now, tm);
-        sprintf_P(pt, PSTR("%04d-%02d-%02dT%02d:%02d:%02dZ"), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
-    }
+    toJsonIsoTimestamp(now, pt, sizeof(pt));
 
-    snprintf_P(json, BufferSize, PSTR("{\"id\":\"%s\",\"name\":\"%s\",\"up\":%d,\"vcc\":%.3f,\"rssi\":%d,\"temp\":%.2f,\"version\":\"%s\",\"t\":\"%s\"}"),
+    snprintf_P(json, BufferSize, PSTR("{\"id\":\"%s\",\"name\":\"%s\",\"up\":%d,\"vcc\":%.3f,\"rssi\":%d,\"temp\":%.2f,\"version\":\"%s\",\"t\":%s}"),
         WiFi.macAddress().c_str(),
         mqttConfig.clientId,
         (uint32_t) (millis64()/1000),
@@ -902,3 +866,14 @@ void HomeAssistantMqttHandler::onMessage(String &topic, String &payload) {
         }
     }
 }
+
+void HomeAssistantMqttHandler::toJsonIsoTimestamp(time_t t, char* buf, size_t buflen) {
+    memset(buf, 0, buflen);
+    if(t > 0) {
+        tmElements_t tm;
+        breakTime(t, tm);
+        snprintf_P(buf, buflen, PSTR("\"%04d-%02d-%02dT%02d:%02d:%02dZ\""), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
+    } else {
+        snprintf_P(buf, buflen, PSTR("null"));
+    }
+}

lib/HwTools/include/HwTools.h

@@ -45,6 +45,7 @@ public:
     bool applyBoardConfig(uint8_t boardType, GpioConfig& gpioConfig, MeterConfig& meterConfig, uint8_t hanPin);
     void setup(SystemConfig* sys, GpioConfig* gpio);
     float getVcc();
+    void setMaxVcc(float maxVcc);
     uint8_t getTempSensorCount();
     TempSensorData* getTempSensorData(uint8_t);
     bool updateTemperatures();
@@ -68,7 +69,7 @@ private:
     uint8_t vccPin, vccGnd_r, vccVcc_r;
     float vccOffset, vccMultiplier;
     float vcc = 3.3; // Last known Vcc
-    float maxVcc = 3.25; // Best to have this close to max as a start, in case Pow-U reboots and starts off with a low voltage, we dont want that to be perceived as max
+    float maxVcc = 3.28; // Best to have this close to max as a start, in case Pow-U reboots and starts off with a low voltage, we dont want that to be perceived as max
     unsigned long lastVccRead = 0;
 
     uint16_t analogRange = 1024;

lib/HwTools/src/HwTools.cpp

@@ -677,4 +677,8 @@ bool HwTools::isVoltageOptimal(float range) {
 
 uint8_t HwTools::getBoardType() {
     return boardType;
+}
+
+void HwTools::setMaxVcc(float vcc) {
+    this->maxVcc = min(3.3f, vcc);
 }

lib/JsonMqttHandler/include/JsonMqttHandler.h

@@ -42,5 +42,6 @@ private:
     bool publishList3(AmsData* data, EnergyAccounting* ea);
     bool publishList4(AmsData* data, EnergyAccounting* ea);
     String getMeterModel(AmsData* data);
+    void toJsonIsoTimestamp(time_t t, char* buf, size_t buflen);
 };
 #endif

lib/JsonMqttHandler/src/JsonMqttHandler.cpp

@@ -356,25 +356,34 @@ bool JsonMqttHandler::publishPrices(PriceService* ps) {
     memset(ts1hr, 0, 24);
 	if(min1hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min1hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts1hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts1hr, sizeof(ts1hr));
 	}
 	char ts3hr[24];
     memset(ts3hr, 0, 24);
 	if(min3hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min3hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts3hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts3hr, sizeof(ts3hr));
 	}
 	char ts6hr[24];
     memset(ts6hr, 0, 24);
 	if(min6hrIdx > -1) {
         time_t ts = now + (SECS_PER_HOUR * min6hrIdx);
-		tmElements_t tm;
+        tmElements_t tm;
         breakTime(ts, tm);
-		sprintf_P(ts6hr, PSTR("%04d-%02d-%02dT%02d:00:00Z"), tm.Year+1970, tm.Month, tm.Day, tm.Hour);
+        tm.Minute = 0;
+        tm.Second = 0;
+        ts = makeTime(tm);
+        toJsonIsoTimestamp(ts, ts6hr, sizeof(ts6hr));
 	}
 
     if(mqttConfig.payloadFormat == 6) {
@@ -388,7 +397,7 @@ bool JsonMqttHandler::publishPrices(PriceService* ps) {
             }
         }
 
-        pos += snprintf_P(json+pos, BufferSize-pos, PSTR("\"pr_min\":%.4f,\"pr_max\":%.4f,\"pr_cheapest1hr\":\"%s\",\"pr_cheapest3hr\":\"%s\",\"pr_cheapest6hr\":\"%s\"}"),
+        pos += snprintf_P(json+pos, BufferSize-pos, PSTR("\"pr_min\":%.4f,\"pr_max\":%.4f,\"pr_cheapest1hr\":%s,\"pr_cheapest3hr\":%s,\"pr_cheapest6hr\":%s}"),
             min == INT16_MAX ? 0.0 : min,
             max == INT16_MIN ? 0.0 : max,
             ts1hr,
@@ -422,7 +431,7 @@ bool JsonMqttHandler::publishPrices(PriceService* ps) {
         }
 
         pos--;
-        pos += snprintf_P(json+pos, BufferSize-pos, PSTR("],\"min\":%.4f,\"max\":%.4f,\"cheapest1hr\":\"%s\",\"cheapest3hr\":\"%s\",\"cheapest6hr\":\"%s\"}}"),
+        pos += snprintf_P(json+pos, BufferSize-pos, PSTR("],\"min\":%.4f,\"max\":%.4f,\"cheapest1hr\":%s,\"cheapest3hr\":%s,\"cheapest6hr\":%s}}"),
             min == INT16_MAX ? 0.0 : min,
             max == INT16_MIN ? 0.0 : max,
             ts1hr,
@@ -535,3 +544,14 @@ void JsonMqttHandler::onMessage(String &topic, String &payload) {
         }
     }
 }
+
+void JsonMqttHandler::toJsonIsoTimestamp(time_t t, char* buf, size_t buflen) {
+    memset(buf, 0, buflen);
+    if(t > 0) {
+        tmElements_t tm;
+        breakTime(t, tm);
+        snprintf_P(buf, buflen, PSTR("\"%04d-%02d-%02dT%02d:%02d:%02dZ\""), tm.Year+1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second);
+    } else {
+        snprintf_P(buf, buflen, PSTR("null"));
+    }
+}

lib/MeterCommunicators/src/IEC6205675.cpp

@@ -25,16 +25,206 @@ IEC6205675::IEC6205675(const char* d, Timezone* tz, uint8_t useMeterType, MeterC
     if(val == NOVALUE) {
         CosemData* data = getCosemDataAt(1, ((char *) (d)));
         
-        // Kaifa special case...
-        if(useMeterType == AmsTypeKaifa && data->base.type == CosemTypeDLongUnsigned) {
-            this->packageTimestamp = this->packageTimestamp > 0 && tz != NULL ? tz->toUTC(this->packageTimestamp) : 0;
+        if(useMeterType == AmsTypeIskra) { // Iskra special case
+            meterType = AmsTypeIskra;
+            uint8_t idx = 0;
+            data = getCosemDataAt(idx, ((char *) (d)));
+            if(data->base.length == 0x21) {
+                idx = 4;
+
+                // 1.8.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeImportCounter = ntohl(data->dlu.data) / 1000.0;
+
+                // 1.8.1
+                // 1.8.2
+                idx += 2;
+                
+                // 2.8.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeExportCounter = ntohl(data->dlu.data) / 1000.0;
+
+                // 2.8.1
+                // 2.8.2
+                idx += 2;
+
+                // 5.8.0
+                // 6.8.0
+                // 7.8.0
+                // 8.8.0
+                idx += 4;
+
+                // 1.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeImportPower = ntohl(data->dlu.data);
+
+                // 2.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeExportPower = ntohl(data->dlu.data);
+
+                // 13.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                powerFactor= ntohl(data->dlu.data) / 1000.0;
+
+                // 21.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1activeImportPower = ntohl(data->dlu.data);
+
+                // 41.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l2activeImportPower = ntohl(data->dlu.data);
+
+                // 61.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3activeImportPower = ntohl(data->dlu.data);
+
+                // 22.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1activeExportPower = ntohl(data->dlu.data);
+
+                // 42.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l2activeExportPower = ntohl(data->dlu.data);
+
+                // 62.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3activeExportPower = ntohl(data->dlu.data);
+
+                // 32.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1voltage = ntohs(data->lu.data) / 10.0;
+
+                // 52.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l2voltage = ntohs(data->lu.data) / 10.0;
+
+                // 72.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3voltage = ntohs(data->lu.data) / 10.0;
+
+                // 31.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1current = ntohs(data->lu.data) / 100.0;
+
+                // 51.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l2current = ntohs(data->lu.data) / 100.0;
+
+                // 71.7.0
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3current = ntohs(data->lu.data) / 100.0;
+
+                listType = 4;
+                lastUpdateMillis = millis64();
+            } else if(data->base.length == 0x0F) {
+                idx = 1;
+
+                // 1.8.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeImportCounter = ntohl(data->dlu.data) / 1000.0;
+
+                // 1.8.1 ?
+                // 1.8.2 ?
+                idx += 2;
+
+                // 2.8.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeExportCounter = ntohl(data->dlu.data) / 1000.0;
+
+                // 2.8.1 ?
+                // 2.8.2 ?
+                idx += 2;
+
+                idx++; // Unknown empty octet string
+
+                CosemData* meterTs = getCosemDataAt(idx++, ((char *) (d)));
+                if(meterTs != NULL) {
+                    AmsOctetTimestamp* amst = (AmsOctetTimestamp*) meterTs;
+                    time_t ts = decodeCosemDateTime(amst->dt);
+                    meterTimestamp = ts;
+                }
+
+                // 2.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeExportPower = ntohl(data->dlu.data);
+
+                // 1.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                activeImportPower = ntohl(data->dlu.data);
+
+                // 31.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1current = ntohs(data->lu.data) / 100.0;
+
+                // 51.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l2current = ntohs(data->lu.data) / 100.0;
+
+                // 71.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3current = ntohs(data->lu.data) / 100.0;
+
+                // 32.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l1voltage = ntohs(data->lu.data) / 10.0;
+
+                // 72.7.0 ?
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                l3voltage = ntohs(data->lu.data) / 10.0;
+
+                // 52.7.0 missing?
+                l2voltage = sqrt(pow(l1voltage - l3voltage * cos(60 * (PI/180)), 2) + pow(l3voltage * sin(60 * (PI/180)),2));
+
+                listType = 3;
+                lastUpdateMillis = millis64();
+            } else {
+                idx = 5;
+
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    activeImportCounter = ntohl(data->dlu.data) / 1000.0;
+                }
+    
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    activeExportCounter = ntohl(data->dlu.data) / 1000.0;
+                }
+    
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    reactiveImportCounter = ntohl(data->dlu.data) / 1000.0;
+                }
+    
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    reactiveExportCounter = ntohl(data->dlu.data) / 1000.0;
+                }
+
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    activeImportPower = ntohl(data->dlu.data);
+                }
+
+                data = getCosemDataAt(idx++, ((char *) (d)));
+                if(data != NULL) {
+                    activeExportPower = ntohl(data->dlu.data);
+                }
+
+                uint8_t str_len = 0;
+                str_len = getString(AMS_OBIS_UNKNOWN_1, sizeof(AMS_OBIS_UNKNOWN_1), ((char *) (d)), str);
+                if(str_len > 0) {
+                    meterId = String(str);
+                }
+
+                listType = 4;
+                lastUpdateMillis = millis64();
+            }
+        } else if(useMeterType == AmsTypeKaifa && data->base.type == CosemTypeDLongUnsigned) { // Kaifa special case
             listType = 1;
             meterType = AmsTypeKaifa;
             activeImportPower = ntohl(data->dlu.data);
             lastUpdateMillis = millis64();
-        } else if(data->base.type == CosemTypeOctetString) {
-            this->packageTimestamp = this->packageTimestamp > 0 && tz != NULL ? tz->toUTC(this->packageTimestamp) : 0;
-
+        } else if(data->base.type == CosemTypeOctetString) { // Assuming first string is a list identifier
             memcpy(str, data->oct.data, data->oct.length);
             str[data->oct.length] = 0x00;
             String listId = String(str);
@@ -42,7 +232,7 @@ IEC6205675::IEC6205675(const char* d, Timezone* tz, uint8_t useMeterType, MeterC
                 this->listId = listId;
                 meterType = AmsTypeKaifa;
 
-                int idx = 0;
+                uint8_t idx = 0;
                 data = getCosemDataAt(idx, ((char *) (d)));
                 idx+=2;
                 if(data->base.length == 0x0D || data->base.length == 0x12) {
@@ -144,7 +334,7 @@ IEC6205675::IEC6205675(const char* d, Timezone* tz, uint8_t useMeterType, MeterC
                 this->listId = listId;
                 meterType = AmsTypeIskra;
 
-                int idx = 0;
+                uint8_t idx = 0;
                 data = getCosemDataAt(idx++, ((char *) (d)));
                 if(data->base.length == 0x12) {
                     apply(state);
@@ -559,49 +749,31 @@ IEC6205675::IEC6205675(const char* d, Timezone* tz, uint8_t useMeterType, MeterC
                     data = getCosemDataAt(idx++, ((char *) (d)));
                     activeExportCounter = ntohl(data->dlu.data) / 1000.0;
                 }
-            } else if(useMeterType == AmsTypeIskra && data->base.type == CosemTypeOctetString) { // Iskra special case
+            }
+        }
+        
+        if(meterType == AmsTypeUnknown && useMeterType == AmsTypeUnknown) {
+            debugger->println("AMS unknown meter type, trying to identify...");
+            CosemData* d1 = getCosemDataAt(1, ((char *) (d)));
+            CosemData* d2 = getCosemDataAt(2, ((char *) (d)));
+            CosemData* d3 = getCosemDataAt(3, ((char *) (d)));
+            CosemData* d7 = getCosemDataAt(7, ((char *) (d)));
+            CosemData* d8 = getCosemDataAt(8, ((char *) (d)));
+
+            if(d1->base.type == CosemTypeDLongUnsigned &&
+                d2->base.type == CosemTypeDLongUnsigned &&
+                d3->base.type == CosemTypeDLongUnsigned &&
+                d7->base.type == CosemTypeOctetString &&
+                d8->base.type == CosemTypeOctetString
+            ) {
                 meterType = AmsTypeIskra;
-                uint8_t idx = 5;
-
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    activeImportCounter = ntohl(data->dlu.data) / 1000.0;
-                }
-    
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    activeExportCounter = ntohl(data->dlu.data) / 1000.0;
-                }
-    
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    reactiveImportCounter = ntohl(data->dlu.data) / 1000.0;
-                }
-    
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    reactiveExportCounter = ntohl(data->dlu.data) / 1000.0;
-                }
-
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    activeImportPower = ntohl(data->dlu.data);
-                }
-
-                data = getCosemDataAt(idx++, ((char *) (d)));
-                if(data != NULL) {
-                    activeExportPower = ntohl(data->dlu.data);
-                }
-
-                uint8_t str_len = 0;
-                str_len = getString(AMS_OBIS_UNKNOWN_1, sizeof(AMS_OBIS_UNKNOWN_1), ((char *) (d)), str);
-                if(str_len > 0) {
-                    meterId = String(str);
-                }
-
-                listType = 3;
                 lastUpdateMillis = millis64();
-            } else if(useMeterType == AmsTypeUnknown) {
+                listType = 3;
+            } else if(d1->base.type == CosemTypeOctetString && d2->base.type == CosemTypeOctetString && d3->base.type == CosemTypeOctetString) {
+                meterType = AmsTypeIskra;
+                lastUpdateMillis = millis64();
+                listType = 3;
+            } else {
                 uint8_t str_len = 0;
                 str_len = getString(AMS_OBIS_UNKNOWN_1, sizeof(AMS_OBIS_UNKNOWN_1), ((char *) (d)), str);
                 if(str_len > 0) {
@@ -612,7 +784,7 @@ IEC6205675::IEC6205675(const char* d, Timezone* tz, uint8_t useMeterType, MeterC
                 }
             }
         }
-    } else {
+    } else { // OBIS code parsing
         listType = 1;
         activeImportPower = val;
 

lib/PriceService/src/PriceService.cpp

@@ -574,7 +574,8 @@ PricesContainer* PriceService::fetchPrices(time_t t) {
                     for(uint8_t i = 0; i < ret->getNumberOfPoints(); i++) {
                         // To avoid alignment issues on ESP8266, we use memcpy
                         memcpy(&intval, &points[i], sizeof(int32_t));
-                        float value = ntohl(intval) / 10000.0;
+                        intval = ntohl(intval); // Change byte order before converting to float, to support negative values
+                        float value = intval / 10000.0;
                         #if defined(AMS_REMOTE_DEBUG)
                         if (debugger->isActive(RemoteDebug::VERBOSE))
                         #endif
@@ -585,7 +586,8 @@ PricesContainer* PriceService::fetchPrices(time_t t) {
                         for(uint8_t i = 0; i < ret->getNumberOfPoints(); i++) {
                             // To avoid alignment issues on ESP8266, we use memcpy
                             memcpy(&intval, &points[ret->getNumberOfPoints()+i], sizeof(int32_t));
-                            float value = ntohl(intval) / 10000.0;
+                            intval = ntohl(intval); // Change byte order before converting to float, to support negative values
+                            float value = intval / 10000.0;
                             #if defined(AMS_REMOTE_DEBUG)
                             if (debugger->isActive(RemoteDebug::VERBOSE))
                             #endif

lib/SvelteUi/app/package-lock.json

@@ -9,7 +9,8 @@
       "version": "0.0.0",
       "dependencies": {
         "cssnano": "^5.1.15",
-        "esbuild": ">=0.25.0"
+        "esbuild": ">=0.25.0",
+        "ipaddr.js": "^2.3.0"
       },
       "devDependencies": {
         "@sveltejs/vite-plugin-svelte": "^2.1.0",
@@ -1584,6 +1585,14 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "dev": true
     },
+    "node_modules/ipaddr.js": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-2.3.0.tgz",
+      "integrity": "sha512-Zv/pA+ciVFbCSBBjGfaKUya/CcGmUHzTydLMaTwrUUEM2DIEO3iZvueGxmacvmN50fGpGVKeTXpb2LcYQxeVdg==",
+      "engines": {
+        "node": ">= 10"
+      }
+    },
     "node_modules/is-binary-path": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",

lib/SvelteUi/app/package.json

@@ -10,10 +10,10 @@
     "preview": "vite preview"
   },
   "overrides": {
-  "svelte-navigator": {
-    "svelte": ">=4.x"
-  }
-},
+    "svelte-navigator": {
+      "svelte": ">=4.x"
+    }
+  },
   "devDependencies": {
     "@sveltejs/vite-plugin-svelte": "^2.1.0",
     "@tailwindcss/forms": "^0.5.3",
@@ -30,6 +30,7 @@
   },
   "dependencies": {
     "cssnano": "^5.1.15",
-    "esbuild": ">=0.25.0"
+    "esbuild": ">=0.25.0",
+    "ipaddr.js": "^2.3.0"
   }
 }

lib/SvelteUi/app/src/lib/Helpers.js

@@ -130,7 +130,7 @@ export function uiVisibility(choice, state) {
 }
 
 export function wiki(page) {
-    let ret = "https://wiki.amsleser.no/";
+    let ret = "https://wiki.amsleser.no";
     if(page) {
         ret += "/en/firmware#" + page;
     }

lib/SvelteUi/app/src/lib/StatusPage.svelte

@@ -7,6 +7,7 @@
     import Clock from './Clock.svelte';
     import Mask from './Mask.svelte';
     import { scanForDevice } from './Helpers.js';
+    import ipaddr from 'ipaddr.js';
   
     export let data;
     export let sysinfo;
@@ -207,11 +208,11 @@
         </div>
         {#if sysinfo.net.ipv6}
             <div class="my-2">
-                IPv6: <span style="font-size: 14px;">{sysinfo.net.ipv6.replace(/\b:?(?:0+:?){2,}/, '::')}</span>
+                IPv6: <span style="font-size: 14px;">{ipaddr.parse(sysinfo.net.ipv6)}</span>
             </div>
             <div class="my-2">
-                {#if sysinfo.net.dns1v6}DNSv6: <span style="font-size: 14px;">{sysinfo.net.dns1v6.replace(/\b:?(?:0+:?){2,}/, '::')}</span>{/if}
-                {#if sysinfo.net.dns2v6}DNSv6: <span style="font-size: 14px;">{sysinfo.net.dns2v6.replace(/\b:?(?:0+:?){2,}/, '::')}</span>{/if}
+                {#if sysinfo.net.dns1v6}DNSv6: <span style="font-size: 14px;">{ipaddr.parse(sysinfo.net.dns1v6)}</span>{/if}
+                {#if sysinfo.net.dns2v6}DNSv6: <span style="font-size: 14px;">{ipaddr.parse(sysinfo.net.dns2v6)}</span>{/if}
             </div>
         {/if}
     </div>

lib/SvelteUi/src/AmsWebServer.cpp

@@ -61,14 +61,6 @@ AmsWebServer::AmsWebServer(uint8_t* buf, Stream* Debug, HwTools* hw, ResetDataCo
 	this->hw = hw;
 	this->buf = (char*) buf;
 	this->rdc = rdc;
-	if(rdc->magic != 0x4a) {
-		rdc->last_cause = 0;
-		rdc->cause = 0;
-		rdc->magic = 0x4a;
-	} else {
-		rdc->last_cause = rdc->cause;
-		rdc->cause = 0;
-	}
 }
 
 void AmsWebServer::setup(AmsConfiguration* config, GpioConfig* gpioConfig, AmsData* meterState, AmsDataStorage* ds, EnergyAccounting* ea, RealtimePlot* rtp, AmsFirmwareUpdater* updater) {
@@ -1389,10 +1381,10 @@ void AmsWebServer::handleSave() {
 			memset(meterConfig.authenticationKey, 0, 16);
 		}
 
-		meterConfig.wattageMultiplier = server.arg(F("mmw")).toFloat() * 1000;
-		meterConfig.voltageMultiplier = server.arg(F("mmv")).toFloat() * 1000;
-		meterConfig.amperageMultiplier = server.arg(F("mma")).toFloat() * 1000;
-		meterConfig.accumulatedMultiplier = server.arg(F("mmc")).toFloat() * 1000;
+		meterConfig.wattageMultiplier = server.arg(F("mmw")).toDouble() * 1000.0;
+		meterConfig.voltageMultiplier = server.arg(F("mmv")).toDouble() * 1000.0;
+		meterConfig.amperageMultiplier = server.arg(F("mma")).toDouble() * 1000.0;
+		meterConfig.accumulatedMultiplier = server.arg(F("mmc")).toDouble() * 1000.0;
 		config->setMeterConfig(meterConfig);
 	}
 
@@ -1408,7 +1400,7 @@ void AmsWebServer::handleSave() {
 				if(!psk.equals("***")) {
 					strcpy(network.psk, psk.c_str());
 				}
-				network.power = server.arg(F("ww")).toFloat() * 10;
+				network.power = server.arg(F("ww")).toDouble() * 10.0;
 				network.sleep = server.arg(F("wz")).toInt();
 				network.use11b = server.hasArg(F("wb")) && server.arg(F("wb")) == F("true");
 			}
@@ -1569,9 +1561,9 @@ void AmsWebServer::handleSave() {
 	}
 
 	if(server.hasArg(F("iv")) && server.arg(F("iv")) == F("true")) {
-		gpioConfig->vccOffset = server.hasArg(F("ivo")) && !server.arg(F("ivo")).isEmpty() ? server.arg(F("ivo")).toFloat() * 100 : 0;
-		gpioConfig->vccMultiplier = server.hasArg(F("ivm")) && !server.arg(F("ivm")).isEmpty() ? server.arg(F("ivm")).toFloat() * 1000 : 1000;
-		gpioConfig->vccBootLimit = server.hasArg(F("ivb")) && !server.arg(F("ivb")).isEmpty() ? server.arg(F("ivb")).toFloat() * 10 : 0;
+		gpioConfig->vccOffset = server.hasArg(F("ivo")) && !server.arg(F("ivo")).isEmpty() ? server.arg(F("ivo")).toDouble() * 100.0 : 0;
+		gpioConfig->vccMultiplier = server.hasArg(F("ivm")) && !server.arg(F("ivm")).isEmpty() ? server.arg(F("ivm")).toDouble() * 1000.0 : 1000;
+		gpioConfig->vccBootLimit = server.hasArg(F("ivb")) && !server.arg(F("ivb")).isEmpty() ? server.arg(F("ivb")).toDouble() * 10.0 : 0;
 		config->setGpioConfig(*gpioConfig);
 	}
 
@@ -1686,7 +1678,7 @@ void AmsWebServer::handleSave() {
 				snprintf_P(buf, BufferSize, PSTR("rd%d"), i);
 				pc.direction = server.arg(buf).toInt();
 				snprintf_P(buf, BufferSize, PSTR("rv%d"), i);
-				pc.value = server.arg(buf).toFloat() * 10000;
+				pc.value = server.arg(buf).toDouble() * 10000.0;
 				snprintf_P(buf, BufferSize, PSTR("rn%d"), i);
 				String name = server.arg(buf);
 				strcpy(pc.name, name.c_str());

src/AmsToMqttBridge.cpp

@@ -30,6 +30,7 @@ ADC_MODE(ADC_VCC);
 #include "ZmartChargeCloudConnector.h"
 #endif
 
+#define MAX_BOOT_CYCLES 8
 #define WDT_TIMEOUT 120
 #if defined(SLOW_PROC_TRIGGER_MS)
 	#warning "Using predefined slow process trigger"
@@ -190,10 +191,13 @@ CloudConnector *cloud = NULL;
 #if defined(ZMART_CHARGE)
 ZmartChargeCloudConnector *zcloud = NULL;
 #endif
+
 #if defined(ESP32)
 __NOINIT_ATTR EnergyAccountingRealtimeData rtd;
+RTC_DATA_ATTR uint8_t bootcount = 0;
 #else
 EnergyAccountingRealtimeData rtd;
+uint32_t bootcount = 0;
 #endif
 EnergyAccounting ea(&Debug, &rtd);
 
@@ -326,6 +330,31 @@ void rxerr(int err) {
 }
 #endif
 
+uint8_t incrementBootCycleCounter(bool deepSleep) {
+	#if defined(ESP8266)
+		if(deepSleep) {
+			if(ESP.rtcUserMemoryRead(0, &bootcount, sizeof(bootcount))) {
+				bootcount++;
+				ESP.rtcUserMemoryWrite(0, &bootcount, sizeof(bootcount));
+			}
+			return bootcount;
+		} else {
+			return ++bootcount;
+		}
+	#else
+		return ++bootcount;
+	#endif
+}
+void resetBootCycleCounter(bool deepSleep) {
+	#if defined(ESP8266)
+		bootcount = 0;
+		if(deepSleep) {
+			ESP.rtcUserMemoryWrite(0, &bootcount, sizeof(bootcount));
+		}
+	#else
+		bootcount = 0;
+	#endif
+}
 
 void setup() {
 	Serial.begin(115200);
@@ -380,20 +409,6 @@ void setup() {
 		}
 	}
 
-	hw.ledBlink(LED_INTERNAL, 1);
-	hw.ledBlink(LED_RED, 1);
-	hw.ledBlink(LED_YELLOW, 1);
-	hw.ledBlink(LED_GREEN, 1);
-	hw.ledBlink(LED_BLUE, 1);
-
-	PriceServiceConfig price;
-	if(config.getPriceServiceConfig(price)) {
-		ps = new PriceService(&Debug);
-		ps->setup(price);
-		ws.setPriceService(ps);
-	}
-	ws.setPriceSettings(price.area, price.currency);
-	ea.setCurrency(price.currency);
 	bool shared = false;
 	Serial.flush();
 	Serial.end();
@@ -441,22 +456,61 @@ void setup() {
 	yield();
 	#endif
 
-	float vcc = hw.getVcc();
 
+	if(!hw.ledOn(LED_YELLOW)) {
+		hw.ledOn(LED_INTERNAL);
+	}
 	debugI_P(PSTR("AMS reader %s started"), FirmwareVersion::VersionString);
 	debugI_P(PSTR("Configuration version: %d, board type: %d"), config.getConfigVersion(), sysConfig.boardType);
+	float vcc = hw.getVcc();
 	debugI_P(PSTR("Voltage: %.2fV"), vcc);
 
-	float vccBootLimit = gpioConfig.vccBootLimit == 0 ? 0 : min(3.29, gpioConfig.vccBootLimit / 10.0); // Make sure it is never above 3.3v
-	if(vcc > 2.5 && vccBootLimit > 2.5 && vccBootLimit < 3.3 && (gpioConfig.apPin == 0xFF || digitalRead(gpioConfig.apPin) == HIGH)) { // Skip if user is holding AP button while booting (HIGH = button is released)
-		if (vcc < vccBootLimit) {
-			{
-				Debug.printf_P(PSTR("(setup) Voltage is too low (%.2f < %.2f), sleeping\n"), vcc, vccBootLimit);
+	bool deepSleep = false; // Disable for now, as it makes it difficult to debug why devices rebooted
+	#if defined(ESP32)
+	float allowedDrift = bootcount * 0.01;
+	#else
+	float allowedDrift = gpioConfig.vccBootLimit == 0 ? 0.05 : 3.3 - min(3.29, gpioConfig.vccBootLimit / 10.0); // Make sure boot limit is never above 3.3v
+	deepSleep = gpioConfig.vccBootLimit > 0; // If a boot limit is set, we are assume the hardware has been configured for deep sleep (Hint: GPIO16)
+	#endif
+	while(!hw.isVoltageOptimal(allowedDrift)) {
+		uint8_t bootCycles = incrementBootCycleCounter(deepSleep);
+		debugW_P(PSTR("Voltage is outside optimal range (%.2fV)"), allowedDrift);
+		if(gpioConfig.apPin != 0xFF && digitalRead(gpioConfig.apPin) == LOW) {
+			debugW_P(PSTR("AP button is pressed, skipping voltage wait"));
+		} else if(bootCycles < MAX_BOOT_CYCLES) {
+			int secs = MAX_BOOT_CYCLES - bootCycles;
+			if(deepSleep) {
+				debugI_P(PSTR("Sleeping for %d seconds to allow capacitor charge (%d.cycle)"), secs, bootCycles);
 				Serial.flush();
+				ESP.deepSleep(secs * 1000000); // Deep sleep to allow output cap to charge up
+				return;
+			} else {
+				debugI_P(PSTR("Waiting (no sleep) for %d seconds to allow capacitor charge (%d.cycle)"), secs, bootCycles);
+				delay(secs * 1000); // Just delay to allow output cap to charge up
+				vcc = hw.getVcc();
+				debugI_P(PSTR("Voltage: %.2fV"), vcc);
 			}
-			ESP.deepSleep(10000000);    //Deep sleep to allow output cap to charge up
-		}  
+		} else {
+			debugE_P(PSTR("Voltage not reaching optimal level after multiple attempts, continuing boot"));
+			hw.setMaxVcc(vcc); // Since we had to sleep, set max Vcc to current level because this is probably the highest we will get
+			break;
+		}
 	}
+	#if defined(ESP8266)
+	resetBootCycleCounter(deepSleep);
+	#endif
+
+	if(rdc.magic != 0x4a) {
+		rdc.last_cause = 0;
+		rdc.cause = 0;
+		rdc.magic = 0x4a;
+	} else {
+		rdc.last_cause = rdc.cause;
+		rdc.cause = 0;
+	}
+
+	hw.ledOff(LED_YELLOW);
+	hw.ledOff(LED_INTERNAL);
 
 	if(!hw.ledOn(LED_GREEN)) {
 		hw.ledOn(LED_INTERNAL);
@@ -472,6 +526,12 @@ void setup() {
 	hw.ledOff(LED_GREEN);
 	hw.ledOff(LED_INTERNAL);
 
+	hw.ledBlink(LED_INTERNAL, 1);
+	hw.ledBlink(LED_RED, 1);
+	hw.ledBlink(LED_YELLOW, 1);
+	hw.ledBlink(LED_GREEN, 1);
+	hw.ledBlink(LED_BLUE, 1);
+
 	WiFi.disconnect(true);
 	WiFi.softAPdisconnect(true);
 	WiFi.mode(WIFI_OFF);
@@ -537,6 +597,15 @@ void setup() {
 		toggleSetupMode();
 	}
 
+	PriceServiceConfig price;
+	if(config.getPriceServiceConfig(price)) {
+		ps = new PriceService(&Debug);
+		ps->setup(price);
+		ws.setPriceService(ps);
+	}
+	ws.setPriceSettings(price.area, price.currency);
+	ea.setCurrency(price.currency);
+
 	EnergyAccountingConfig *eac = new EnergyAccountingConfig();
 	if(!config.getEnergyAccountingConfig(*eac)) {
 		config.clearEnergyAccountingConfig(*eac);
@@ -633,7 +702,12 @@ void loop() {
 						handleEnergySpeedometer();
 					#endif
 				#endif
-				handlePriceService(now);
+
+				// In case of BUS powered meters, we need to be sure voltage is stable before fetching prices. But we refuse to wait forever, so max 30 seconds
+				if(now > 30000 || hw.isVoltageOptimal(0.01)) {
+					handlePriceService(now);
+				}
+
 				#if defined(AMS_CLOUD)
 					handleCloud();
 				#endif