Gary, I have edited the weewx.conf with proposed configuration. I am still not getting the values correct. I do have: rainDay, rainWeek, rainMonth and rainYear values in the weewx's database. Maybe I don't understand the logic behind the [[Delta]].
I have few questions: 1. Does the logging interval matter? I am polling the data every minute and store it to the fileparser's compatible format. However, looking at the log file, I see that the records in the weewx.sdb do not update every minute. There are occasions where a minute is skipped (say 1 time per 10 minutes). I don't know the reason. 2. To avoid midnight time discrepancies, I am using the dateTime value provided by the data source (Ecowitt cloud) and provide the "dateTime=<>" string to the fileparser. Is this valid to do? I have also tried without this. Explanation: when polling for the data few seconds over 00:00, I get data from 23:59. If I let weewx use the actual OS time, the "rainDay" would be wrongly logged to the next day. Why is using e.g. rainMonth or rainYear better than rainDay? Thank you. nedelja, 6. april 2025 ob 13:53:47 UTC+2 je oseba gjr80 napisala: > Provided you are running WeeWX v4.2.0 or later you need to make the > following changes to the [StdWXCalculate] stanza in weewx.conf: > > 1. under [[Calculations]] add an entry as follows: > rain = prefer_hardware > 2. add a new stanza [[Delta]] after the [StdWXCalculate] [[Calculations]] > stanza: > [[Delta]] > [[[rain]]] > input = dailyRain > > where dailyRain is the name of your cumulative rain field to be used to > calculate WeeWX field rain. If you have more than one cumulative rain > field use the one that resets least frequently, eg use day rain in > preference to hour rain, year rain in preference to month rain etc. > > your [StdWXCalculate] stanza should look something like: > > [StdWXCalculate] > [[Calculations]] > .... > rain = prefer_hardware > [[Delta]] > [[[rain]]] > input = dailyRain > > After making the changes save weewx.conf and restart WeeWX. WeeWX should > now correctly populate the WeeWX field rain. > > Gary > On Sunday, 6 April 2025 at 00:07:45 UTC+10 mihec wrote: > >> While looking for solution to my issue, I came around this post. >> I am using fileparser to log data from my remote weather station >> (Ecowitt) and everything works fine except the rain. I have implemented my >> own pre-processing where I log the delta-rain but that doesn't work for >> some reason (might my timing issue in the scripts). I am logging the >> dailyRain and other values, too. Just in case. I don't know how to e.g. use >> the dailyRain in the NOAA report. >> >> As I read this: https://github.com/weewx/weewx/issues/491 >> I assume this could resolve it. Are there any more details on the use? >> >> sreda, 6. maj 2020 ob 00:00:03 UTC+2 je oseba John Kline napisala: >> >>> If you have some experience programming, you might consider writing a >>> driver for your weather station (as opposed to hacking something just for >>> rain). >>> >>> See: >>> http://www.weewx.com/docs/customizing.htm#porting >>> >>> On May 5, 2020, at 1:56 PM, Johann Schneider <johann.s...@gmail.com> >>> wrote: >>> >>> >>> Hello everybody! >>> Thank you for your answers. >>> Sorry for my difficult to understand question. >>> So my weather station sends the measured values every 15 seconds. >>> If it sends rain, I get the hourly rain value and the rain value for the >>> whole day. The rain value for the whole day is cumulative and is set to 0 >>> at 00:00. The hourly rain value at the beginning of the rain is always >>> calculated for one hour. >>> I thought I could simply import the data into weewx with "fileparser". >>> This also works with the other data. Just not with the rain values. >>> John Kline's suggestion sounds great. That's how I would have imagined >>> it. >>> How can I implement something for the rain value? >>> >>> kind regards >>> >>> Johnny >>> >>> Am Dienstag, 5. Mai 2020 03:19:43 UTC+2 schrieb John Kline: >>>> >>>> Hi Tom, >>>> >>>> Apologies in advance if I have misunderstood the question and have made >>>> you read what I believe you already know. >>>> >>>> If the question is can a driver be written to make use of rain emitted >>>> every 15 seconds and resetting every hour, I believe such a driver can >>>> easily be written. >>>> >>>> The RainWise CC3000 reports total rain and resets once a day. >>>> >>>> The delta is calculated with the following call in the cc3000 driver: >>>> return weewx.wxformulas.calculate_rain(rain_total, last_rain) >>>> >>>> If the the rain total is less than the last rain total recorded, it is >>>> assumed that the counter reset. On the CC3000, the reset is at midnight; >>>> but this would work just fine if the reset occurs every hour. >>>> >>>> I suspect other drivers do the same in this regard (convert total rain >>>> to incremental). >>>> >>>> On May 4, 2020, at 3:58 PM, Tom Keffer <tke...@gmail.com> wrote: >>>> >>>> >>>> Hello Johnny, >>>> >>>> Unfortunately, the data is summed up every few minutes and the values >>>>> no longer fit. >>>>> For example, I have 0.15mm of rain in the last hour, then the value >>>>> after each loop adds up until the hour is over. >>>> >>>> >>>> If I understand you correctly, your software emits the total rain >>>> measured so far in an hour, which then gets reset at the end of the hour. >>>> >>>> If that that is the case, then, no, that would not work well with >>>> weewx. In weewx, observation type 'rain' is the total amount of rain >>>> measured *for that packet*, and only for that packet. Typically, it is >>>> a very small number. This is explained in a little more detail in the >>>> section genLoopPackets >>>> <http://www.weewx.com/docs/customizing.htm#genLoopPackets> in the >>>> Customizing Guide. >>>> >>>> Or, maybe I am misunderstanding your problem. >>>> >>>> -tk >>>> >>>> On Mon, May 4, 2020 at 2:02 PM Johann Schneider <johann.s...@gmail.com> >>>> wrote: >>>> >>>>> Hello everybody! >>>>> I have a little problem. Sorry for my very bad english. I come from >>>>> Germany and my English is not the best. My experience with weewx is also >>>>> very limited. I built a weather station 3 years ago. It consists of an >>>>> Arduino Mega and several sensors. >>>>> Among other things, a rain sensor that reports 0.16mm of rain per >>>>> seesaw >>>>> The values are pushed to iobroker (similar to openhab) every 15 >>>>> seconds. Here is an excerpt from my Arduino codes: >>>>> /* >>>>> Auswertung Regenmengensensor mit Regenwippe >>>>> - Counter kann durch reed-Kontakt oder Hallsensor erfolgen >>>>> - i2c eeprom AT24C256 >>>>> - i2c Adresse EEPROM (default: 0x50) >>>>> */ >>>>> #include <Wire.h> >>>>> //#include <I2C_EEPROM.h> >>>>> #//include <avr/eeprom.h> >>>>> /********************************************/ >>>>> /* PIN-Section */ >>>>> /* Hier Sensor-Pins definieren */ >>>>> /********************************************/ >>>>> //#define RAIN_COUNT_PIN 7 >>>>> #define RAIN_COUNT_PIN 30 >>>>> /********************************************/ >>>>> /* Variablen-Section */ >>>>> /********************************************/ >>>>> long lastSecond; // Original - The millis counter to see when a second >>>>> rolls by >>>>> unsigned int minutesSinceLastReset; //Used to reset variables after 24 >>>>> hours. Imp should tell us when it's midnight, this is backup. >>>>> byte secondsRain; //When it hits 60, increase the current minute >>>>> byte minutesRain; //Keeps track of where we are in various arrays of >>>>> data >>>>> >>>>> volatile float rainHour[60]; //60 floating numbers to keep track of 60 >>>>> minutes of rain >>>>> volatile unsigned long raintime, rainlast, raininterval, rain; >>>>> volatile unsigned long last_micros1; >>>>> long debouncing_time1 = 3; // in millis -> eleminiert evtl >>>>> REED-Kontakt-Prellen >>>>> boolean RainTimeReset = false; >>>>> >>>>> //struct Configuration >>>>> //{ >>>>> // float regenTag; >>>>> // float regenStunde; >>>>> //}eepconfig EEMEM; >>>>> >>>>> //AT24C256<0x50> eep; // Das EEProm auf der china üblichen RTC3231 >>>>> >>>>> /********************************************/ >>>>> /* Interrupt-Section */ >>>>> /********************************************/ >>>>> void rainIRQ(unsigned long now){ >>>>> if((long)(micros() - last_micros1) >= debouncing_time1 * 1000) { >>>>> rainToday += 0.1618; // Each dump is 0.1618mm of water >>>>> rainHour[minutesRain] += 0.1618; // Increase this minute's amount >>>>> of rain >>>>> last_micros1 = micros(); >>>>> } >>>>> } >>>>> >>>>> /********************************************/ >>>>> /* Setup-Section */ >>>>> /********************************************/ >>>>> void setupRain(unsigned long now){ >>>>> Serial.begin(115200); >>>>> Wire.begin(); >>>>> #ifdef DEBUG_WS >>>>> Serial.println("rain gauge online!"); >>>>> #endif >>>>> // if(eep.ready()){ >>>>> // eep.get(eepconfig.regenTag,rainToday); >>>>> //#ifdef DEBUG_WS >>>>> // Serial.print("EEPROM rainToday : "); >>>>> // Serial.println(rainToday); >>>>> //#endif >>>>> // } >>>>> // else >>>>> // { >>>>> midnightReset(now); //Reset rain totals >>>>> secondsRain = 0; >>>>> lastSecond = now; >>>>> // } >>>>> rainLastHour = 0; >>>>> pinMode(RAIN_COUNT_PIN, INPUT_PULLUP); >>>>> attachInterrupt(RAIN_COUNT_PIN, rainIRQ, RISING); >>>>> >>>>> reportWeather(); >>>>> } >>>>> >>>>> /********************************************/ >>>>> /* Loop-Section */ >>>>> /********************************************/ >>>>> void loopRain(unsigned long now){ >>>>> //Keep track of which minute it is >>>>> if(now - lastSecond >= 1000) >>>>> { >>>>> lastSecond += 1000; >>>>> >>>>> reportWeather(); //Print the current readings. Takes 172ms. >>>>> >>>>> //If we roll over 60 seconds then update the arrays for rain >>>>> if(++secondsRain > 59) >>>>> { >>>>> secondsRain = 0; >>>>> >>>>> if(++minutesRain > 59) minutesRain = 0; >>>>> >>>>> rainHour[minutesRain] = 0; //Zero out this minute's rainfall >>>>> amount >>>>> >>>>> minutesSinceLastReset++; //It's been another minute since last >>>>> night's midnight reset >>>>> } >>>>> } >>>>> >>>>> if((TimeStunde == 0) && (! RainTimeReset)) >>>>> { >>>>> midnightReset(now); //Reset a bunch of variables like rain and >>>>> daily total rain >>>>> RainTimeReset = true; >>>>> } >>>>> else if((TimeStunde != 0) && (RainTimeReset)) >>>>> { >>>>> RainTimeReset = false; >>>>> } >>>>> >>>>> //If we go for more than 24 hours without a midnight reset then >>>>> force a reset >>>>> //24 hours * 60 mins/hr = 1,440 minutes + 10 extra minutes. We hope >>>>> that Imp is doing it. >>>>> if(minutesSinceLastReset > (1440 + 10)) >>>>> { >>>>> midnightReset(now); //Reset a bunch of variables like rain and >>>>> daily total rain >>>>> } >>>>> } >>>>> >>>>> //When the imp tells us it's midnight, reset the total amount of rain >>>>> and gusts >>>>> void midnightReset(unsigned long now) >>>>> { >>>>> rainToday = 0; //Reset daily amount of rain >>>>> // if(eep.ready()){ >>>>> // eep.put(eepconfig.regenTag,rainToday); >>>>> // } >>>>> minutesRain = 0; //Reset minute tracker >>>>> secondsRain = 0; >>>>> lastSecond = now; //Reset variable used to track minutes >>>>> >>>>> minutesSinceLastReset = 0; //Zero out the backup midnight reset >>>>> variable >>>>> } >>>>> >>>>> void calcWeather() >>>>> { >>>>> rainLastHour = 0; >>>>> for(int i = 0 ; i < 60 ; i++) >>>>> rainLastHour += rainHour[i]; >>>>> } >>>>> >>>>> >>>>> void reportWeather() >>>>> { >>>>> calcWeather(); //Go calc all the various sensors >>>>> #ifdef INFO_WS >>>>> Serial.print("rainLastHour : "); >>>>> Serial.print(rainLastHour, 2); >>>>> Serial.print(" , rainToday : "); >>>>> Serial.println(rainToday, 2); >>>>> #endif >>>>> // if(eep.ready()){ >>>>> // eep.put(eepconfig.regenStunde,rainLastHour); //Nicht nutzen >>>>> // eep.put(eepconfig.regenTag,rainToday); >>>>> // } >>>>> } >>>>> >>>>> >>>>> The rain data are given every 15 seconds. >>>>> I get the values for rain of the last hour and the total amount >>>>> since midnight. >>>>> Now I have tried to collect the data using fileparse. >>>>> Iobroker writes the data to a file every minute. >>>>> See example: >>>>> outTemp=43.8 >>>>> outHumidity=74.7 >>>>> pressure=29.896 >>>>> rain=0.00 >>>>> windSpeed=0.8 >>>>> >>>>> Fileparse evaluates the data and pushes it onto weewx. >>>>> Unfortunately, the data is summed up every few minutes and the values >>>>> no longer fit. >>>>> For example, I have 0.15mm of rain in the last hour, then the value >>>>> after each loop adds up until the hour is over. >>>>> /* >>>>> Auswertung Regenmengensensor mit Regenwippe >>>>> - Counter kann durch reed-Kontakt oder Hallsensor erfolgen >>>>> - i2c eeprom AT24C256 >>>>> - i2c Adresse EEPROM (default: 0x50) >>>>> */ >>>>> #include <Wire.h> >>>>> //#include <I2C_EEPROM.h> >>>>> #//include <avr/eeprom.h> >>>>> /********************************************/ >>>>> /* PIN-Section */ >>>>> /* Hier Sensor-Pins definieren */ >>>>> /********************************************/ >>>>> //#define RAIN_COUNT_PIN 7 >>>>> #define RAIN_COUNT_PIN 30 >>>>> /********************************************/ >>>>> /* Variablen-Section */ >>>>> /********************************************/ >>>>> long lastSecond; // Original - The millis counter to see when a second >>>>> rolls by >>>>> unsigned int minutesSinceLastReset; //Used to reset variables after 24 >>>>> hours. Imp should tell us when it's midnight, this is backup. >>>>> byte secondsRain; //When it hits 60, increase the current minute >>>>> byte minutesRain; //Keeps track of where we are in various arrays of >>>>> data >>>>> >>>>> volatile float rainHour[60]; //60 floating numbers to keep track of 60 >>>>> minutes of rain >>>>> volatile unsigned long raintime, rainlast, raininterval, rain; >>>>> volatile unsigned long last_micros1; >>>>> long debouncing_time1 = 3; // in millis -> eleminiert evtl >>>>> REED-Kontakt-Prellen >>>>> boolean RainTimeReset = false; >>>>> >>>>> //struct Configuration >>>>> //{ >>>>> // float regenTag; >>>>> // float regenStunde; >>>>> //}eepconfig EEMEM; >>>>> >>>>> //AT24C256<0x50> eep; // Das EEProm auf der china üblichen RTC3231 >>>>> >>>>> /********************************************/ >>>>> /* Interrupt-Section */ >>>>> /********************************************/ >>>>> void rainIRQ(unsigned long now){ >>>>> if((long)(micros() - last_micros1) >= debouncing_time1 * 1000) { >>>>> rainToday += 0.1618; // Each dump is 0.1618mm of water >>>>> rainHour[minutesRain] += 0.1618; // Increase this minute's amount >>>>> of rain >>>>> last_micros1 = micros(); >>>>> } >>>>> } >>>>> >>>>> /********************************************/ >>>>> /* Setup-Section */ >>>>> /********************************************/ >>>>> void setupRain(unsigned long now){ >>>>> Serial.begin(115200); >>>>> Wire.begin(); >>>>> #ifdef DEBUG_WS >>>>> Serial.println("rain gauge online!"); >>>>> #endif >>>>> // if(eep.ready()){ >>>>> // eep.get(eepconfig.regenTag,rainToday); >>>>> //#ifdef DEBUG_WS >>>>> // Serial.print("EEPROM rainToday : "); >>>>> // Serial.println(rainToday); >>>>> //#endif >>>>> // } >>>>> // else >>>>> // { >>>>> midnightReset(now); //Reset rain totals >>>>> secondsRain = 0; >>>>> lastSecond = now; >>>>> // } >>>>> rainLastHour = 0; >>>>> pinMode(RAIN_COUNT_PIN, INPUT_PULLUP); >>>>> attachInterrupt(RAIN_COUNT_PIN, rainIRQ, RISING); >>>>> >>>>> reportWeather(); >>>>> } >>>>> >>>>> /********************************************/ >>>>> /* Loop-Section */ >>>>> /********************************************/ >>>>> void loopRain(unsigned long now){ >>>>> //Keep track of which minute it is >>>>> if(now - lastSecond >= 1000) >>>>> { >>>>> lastSecond += 1000; >>>>> >>>>> reportWeather(); //Print the current readings. Takes 172ms. >>>>> >>>>> //If we roll over 60 seconds then update the arrays for rain >>>>> if(++secondsRain > 59) >>>>> { >>>>> secondsRain = 0; >>>>> >>>>> if(++minutesRain > 59) minutesRain = 0; >>>>> >>>>> rainHour[minutesRain] = 0; //Zero out this minute's rainfall >>>>> amount >>>>> >>>>> minutesSinceLastReset++; //It's been another minute since last >>>>> night's midnight reset >>>>> } >>>>> } >>>>> >>>>> if((TimeStunde == 0) && (! RainTimeReset)) >>>>> { >>>>> midnightReset(now); //Reset a bunch of variables like rain and >>>>> daily total rain >>>>> RainTimeReset = true; >>>>> } >>>>> else if((TimeStunde != 0) && (RainTimeReset)) >>>>> { >>>>> RainTimeReset = false; >>>>> } >>>>> >>>>> //If we go for more than 24 hours without a midnight reset then >>>>> force a reset >>>>> //24 hours * 60 mins/hr = 1,440 minutes + 10 extra minutes. We hope >>>>> that Imp is doing it. >>>>> if(minutesSinceLastReset > (1440 + 10)) >>>>> { >>>>> midnightReset(now); //Reset a bunch of variables like rain and >>>>> daily total rain >>>>> } >>>>> } >>>>> >>>>> //When the imp tells us it's midnight, reset the total amount of rain >>>>> and gusts >>>>> void midnightReset(unsigned long now) >>>>> { >>>>> rainToday = 0; //Reset daily amount of rain >>>>> // if(eep.ready()){ >>>>> // eep.put(eepconfig.regenTag,rainToday); >>>>> // } >>>>> minutesRain = 0; //Reset minute tracker >>>>> secondsRain = 0; >>>>> lastSecond = now; //Reset variable used to track minutes >>>>> >>>>> minutesSinceLastReset = 0; //Zero out the backup midnight reset >>>>> variable >>>>> } >>>>> >>>>> void calcWeather() >>>>> { >>>>> rainLastHour = 0; >>>>> for(int i = 0 ; i < 60 ; i++) >>>>> rainLastHour += rainHour[i]; >>>>> } >>>>> >>>>> >>>>> void reportWeather() >>>>> { >>>>> calcWeather(); //Go calc all the various sensors >>>>> #ifdef INFO_WS >>>>> Serial.print("rainLastHour : "); >>>>> Serial.print(rainLastHour, 2); >>>>> Serial.print(" , rainToday : "); >>>>> Serial.println(rainToday, 2); >>>>> #endif >>>>> // if(eep.ready()){ >>>>> // eep.put(eepconfig.regenStunde,rainLastHour); //Nicht nutzen >>>>> // eep.put(eepconfig.regenTag,rainToday); >>>>> // } >>>>> } >>>>> >>>>> >>>>> Is there a solution? >>>>> >>>>> greeting >>>>> Johnnny >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "weewx-user" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to weewx...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/weewx-user/a9156731-4c86-4498-9546-0481365ff600%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/weewx-user/a9156731-4c86-4498-9546-0481365ff600%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "weewx-user" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to weewx...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/weewx-user/CAPq0zEASnBsOhS3pMcsP-h0u1G-T8eo9cTrOrvvE%2BU1Ngq5WCA%40mail.gmail.com >>>> >>>> <https://groups.google.com/d/msgid/weewx-user/CAPq0zEASnBsOhS3pMcsP-h0u1G-T8eo9cTrOrvvE%2BU1Ngq5WCA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-user" group. >>> >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to weewx-user+...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-user/7cf18d09-e9e0-460f-b2a5-40a45f86c923%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/weewx-user/7cf18d09-e9e0-460f-b2a5-40a45f86c923%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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