<![CDATA[WeatherDuino Forum - Hardware Questions]]> https://www.meteocercal.info/forum/ Wed, 11 Mar 2026 00:35:17 +0000 MyBB <![CDATA[Professional Ultrasound wind sensors.]]> https://www.meteocercal.info/forum/thread-2359.html Sat, 03 May 2025 15:10:03 +0000 G8NSV]]> https://www.meteocercal.info/forum/thread-2359.html I have a Gill Windsonic unit which can out put both serial in both proprietery and NMEA, as well as 0-5Vdc analog data.
Serial I'm guessing is out so probably have to use analog?
The Analog data for direction is output as 0v for 0 degrees, 2.5v for 180 degrees and 5v for 360 degrees.
Speed is 0-5v with the max at 5v being selectable up to 60 M/s

I was wondering if anyone has ever done this and has code for it, if not I'll have to write if myself Sad Sad Sad 

Regards

Bob]]> I have a Gill Windsonic unit which can out put both serial in both proprietery and NMEA, as well as 0-5Vdc analog data.
Serial I'm guessing is out so probably have to use analog?
The Analog data for direction is output as 0v for 0 degrees, 2.5v for 180 degrees and 5v for 360 degrees.
Speed is 0-5v with the max at 5v being selectable up to 60 M/s

I was wondering if anyone has ever done this and has code for it, if not I'll have to write if myself Sad Sad Sad 

Regards

Bob]]> <![CDATA[Can I use a GY-21 temperature/humidity sensor with the Pro2?]]> https://www.meteocercal.info/forum/thread-2275.html Fri, 12 Jan 2024 22:23:37 +0000 robintw]]> https://www.meteocercal.info/forum/thread-2275.html
As mentioned elsewhere on the forum, I've acquired various WeatherDuino boards and sensors from my former PhD supervisor after his untimely death. I'm trying to make sense of the stuff I have.

I have a Pro2 TX and a Pro2 Compact RX board. In the pile of things I got from him was a GY-21 temperature and humidity sensor. It has a four-wire connector on it, which fits on the I2C or SHT2X connectors on the TX board.

The GY-21 sensor board also lists HTU21 and SHT21 on the board - a good picture of it can be found at https://github.com/JonasGMorsch/GY-21

Is this supported by the WeatherDuino Pro2? I was hoping that it would "just work" as it seems to use the same HTU21 and SHT21 sensors that are mentioned in the config file, but regardless what I choose in the config file I either get values of zero for temperature and humidity, or a value of -312 for temperature and zero for humidity.

If this is supported, what should I set the values in the config file to? And which socket should I plug it into?

Best regards,

Robin]]>
As mentioned elsewhere on the forum, I've acquired various WeatherDuino boards and sensors from my former PhD supervisor after his untimely death. I'm trying to make sense of the stuff I have.

I have a Pro2 TX and a Pro2 Compact RX board. In the pile of things I got from him was a GY-21 temperature and humidity sensor. It has a four-wire connector on it, which fits on the I2C or SHT2X connectors on the TX board.

The GY-21 sensor board also lists HTU21 and SHT21 on the board - a good picture of it can be found at https://github.com/JonasGMorsch/GY-21

Is this supported by the WeatherDuino Pro2? I was hoping that it would "just work" as it seems to use the same HTU21 and SHT21 sensors that are mentioned in the config file, but regardless what I choose in the config file I either get values of zero for temperature and humidity, or a value of -312 for temperature and zero for humidity.

If this is supported, what should I set the values in the config file to? And which socket should I plug it into?

Best regards,

Robin]]> <![CDATA[Temperature Sensor Options]]> https://www.meteocercal.info/forum/thread-2269.html Sun, 10 Dec 2023 02:27:24 +0000 Palmyweather]]> https://www.meteocercal.info/forum/thread-2269.html
Just wondering what people are using these days for their outside temperature sensors?

For many years I have been using SHT10, but sadly I have just used my last replacement I have and cannot seem to order any more.

I have found the life span of my last batch of SHT10 sensors have not lasted, usually the humidity fails first before the temperature; something that has been commended on here before.

I ordered form Alliexpress "a direct replacement" for the SHT10 which is a DHT90 but sadly it is not a "plug-and-play" direct replacement as I expected.

Has anyone had a DHT90 temperature sensor working on this Arduino project? I really haven't had a try and understand I probably need to play around with the different libraries but don't want to try if it is going to be a waste of time.

The product ordered is this, but the on-board chip which arrived does not meet that of the photo: https://www.aliexpress.com/item/4000895053325.html

My ideal cable run is 10 metres from the TX unit (version 3.12), so that sadly rules out SHT31 and SHT2x sensors from my understanding. On this TX board I have ground and leaf sensors also attached.

I am considering going back to DHT22 AM2320 sensors, how reliable, durable and accurate are people finding these units?

Thank you for reading,
Matt
.jpg Untitled.jpg Size: 70,48 KB  Downloads: 205
]]>
Just wondering what people are using these days for their outside temperature sensors?

For many years I have been using SHT10, but sadly I have just used my last replacement I have and cannot seem to order any more.

I have found the life span of my last batch of SHT10 sensors have not lasted, usually the humidity fails first before the temperature; something that has been commended on here before.

I ordered form Alliexpress "a direct replacement" for the SHT10 which is a DHT90 but sadly it is not a "plug-and-play" direct replacement as I expected.

Has anyone had a DHT90 temperature sensor working on this Arduino project? I really haven't had a try and understand I probably need to play around with the different libraries but don't want to try if it is going to be a waste of time.

The product ordered is this, but the on-board chip which arrived does not meet that of the photo: https://www.aliexpress.com/item/4000895053325.html

My ideal cable run is 10 metres from the TX unit (version 3.12), so that sadly rules out SHT31 and SHT2x sensors from my understanding. On this TX board I have ground and leaf sensors also attached.

I am considering going back to DHT22 AM2320 sensors, how reliable, durable and accurate are people finding these units?

Thank you for reading,
Matt
.jpg Untitled.jpg Size: 70,48 KB  Downloads: 205
]]> <![CDATA[What are the limits ?]]> https://www.meteocercal.info/forum/thread-2221.html Thu, 12 Jan 2023 04:09:17 +0000 coupe pete]]> https://www.meteocercal.info/forum/thread-2221.html
Can I use a pro 2 plus 433MHz TX and some 4pro TX's in the same system ?

Are there any limits on how many soil moisture/ leaf wetness boards that can be used ? I could see a use case for 3 boards (4 sensors each) at 3 different sites with 3 4 pro TX units

So in this "over the top" system i could imagine :-
1 pro 2 plus 433MHz TX
3 4pro TX's with soil moisture boards and 4 sensors each board - max distance 250m's from RX
3 wifi display units

i almost certainly wont go that far but would appreciate any advice.]]>
Can I use a pro 2 plus 433MHz TX and some 4pro TX's in the same system ?

Are there any limits on how many soil moisture/ leaf wetness boards that can be used ? I could see a use case for 3 boards (4 sensors each) at 3 different sites with 3 4 pro TX units

So in this "over the top" system i could imagine :-
1 pro 2 plus 433MHz TX
3 4pro TX's with soil moisture boards and 4 sensors each board - max distance 250m's from RX
3 wifi display units

i almost certainly wont go that far but would appreciate any advice.]]> <![CDATA[Weatherduino troubleshooting]]> https://www.meteocercal.info/forum/thread-2215.html Tue, 27 Dec 2022 02:03:15 +0000 coupe pete]]> https://www.meteocercal.info/forum/thread-2215.html <![CDATA[WeatherDuino TX Board v3.13 Rev B Parts List confusion]]> https://www.meteocercal.info/forum/thread-1909.html Sun, 08 Nov 2020 20:32:44 +0000 J.Jantti]]> https://www.meteocercal.info/forum/thread-1909.html The TX board's coming together slowly but surely. The components I ordered seem to take longer than expected to arrive, so I'm somewhat lagging behind my own schedule.

While soldering some of the components together, stumbled upon a confusing statement on the parts list.
The list says that for R7 and R8, 4.7kOhm resistors are needed and there are two asterisks indicating a note:

In that note, this is what it reads:
Quote:Only needed if IC3 installed. For cables longer than 1.5 meters the value of R9 and R10 can vary. See 82B715 datasheet.
This is where things starts to get confusing:
From what I understand, R9 is a resistor that needs to be populated with a 10kOhm resistor as the parts list says, and R10 is the resistor for FANLED and none of these two have anything to do with IC3 and cable lengths.

My board is going to have IC3 installed. I'm guessing is that:
- R7 and R8 are really the ones that need tweaking if the cable length is more than 1.5 meters, according to the 82B715 datasheet.
- R9 is left as it is, and
- R10 is to be tweaked according to whatever LED is to be used for FANLED.

Is my assesment correct?

-- Juha]]> The TX board's coming together slowly but surely. The components I ordered seem to take longer than expected to arrive, so I'm somewhat lagging behind my own schedule.

While soldering some of the components together, stumbled upon a confusing statement on the parts list.
The list says that for R7 and R8, 4.7kOhm resistors are needed and there are two asterisks indicating a note:

In that note, this is what it reads:
Quote:Only needed if IC3 installed. For cables longer than 1.5 meters the value of R9 and R10 can vary. See 82B715 datasheet.
This is where things starts to get confusing:
From what I understand, R9 is a resistor that needs to be populated with a 10kOhm resistor as the parts list says, and R10 is the resistor for FANLED and none of these two have anything to do with IC3 and cable lengths.

My board is going to have IC3 installed. I'm guessing is that:
- R7 and R8 are really the ones that need tweaking if the cable length is more than 1.5 meters, according to the 82B715 datasheet.
- R9 is left as it is, and
- R10 is to be tweaked according to whatever LED is to be used for FANLED.

Is my assesment correct?

-- Juha]]> <![CDATA[New WeatherDuino installation in Italy]]> https://www.meteocercal.info/forum/thread-1908.html Mon, 02 Nov 2020 17:41:28 +0000 bombenm]]> https://www.meteocercal.info/forum/thread-1908.html  I have finally finished building my weather station. Everything works perfectly but I still don't understand why the receiver shows a red dot in the center. The three dots should all be green as they receive from the three TWR sensors and the software is updated to the latest version, correct? I am sending you some photos of the new weather station. The address is: www.wunderground.com/dashboard/pws/IFRIULIV68/graph/2020-11-2/2020-11-2/daily
Any improvements or ideas are welcome. Thank you.


EDITED: New resized pictures some posts bellow.]]>  I have finally finished building my weather station. Everything works perfectly but I still don't understand why the receiver shows a red dot in the center. The three dots should all be green as they receive from the three TWR sensors and the software is updated to the latest version, correct? I am sending you some photos of the new weather station. The address is: www.wunderground.com/dashboard/pws/IFRIULIV68/graph/2020-11-2/2020-11-2/daily
Any improvements or ideas are welcome. Thank you.


EDITED: New resized pictures some posts bellow.]]> <![CDATA[TX Board v 2.5 and Pro2 Plus Receiver]]> https://www.meteocercal.info/forum/thread-1904.html Mon, 26 Oct 2020 04:07:38 +0000 moolight0551]]> https://www.meteocercal.info/forum/thread-1904.html
Can you firstly confirm that a Tx 2.5 board with Version 7.0_b003 installed can communicate with the Pro2 Plus receiver (with the latest software)?

I am uncertain in the Universal Tx vers 7.0 sketch which Tx sensor I should enable Tx_SENS0 or TX_SENS1. I think #define TH_SENSOR1  1 is correct but I get no readings other than 0 and 0 sent to the Pro2 Plus Receiver.

I also have a SHT21 sensor that I could try. Can you confirm that TX_SENS0 refers to the lefthand side connector(labelled SHT21/I2C) on the Tx 2.5 board and the TX_SENS1 refers to the righthand side connector(labelled DHT22/SHT1X)? I also would assume that I can only connect/enable one sensor at a time, please confirm.

I also see no rain data but have not looked at that yet.

Thanks David]]>
Can you firstly confirm that a Tx 2.5 board with Version 7.0_b003 installed can communicate with the Pro2 Plus receiver (with the latest software)?

I am uncertain in the Universal Tx vers 7.0 sketch which Tx sensor I should enable Tx_SENS0 or TX_SENS1. I think #define TH_SENSOR1  1 is correct but I get no readings other than 0 and 0 sent to the Pro2 Plus Receiver.

I also have a SHT21 sensor that I could try. Can you confirm that TX_SENS0 refers to the lefthand side connector(labelled SHT21/I2C) on the Tx 2.5 board and the TX_SENS1 refers to the righthand side connector(labelled DHT22/SHT1X)? I also would assume that I can only connect/enable one sensor at a time, please confirm.

I also see no rain data but have not looked at that yet.

Thanks David]]> <![CDATA[WeatherDuino Pro TX unit: TXLED and FANLED]]> https://www.meteocercal.info/forum/thread-1901.html Fri, 02 Oct 2020 09:28:36 +0000 J.Jantti]]> https://www.meteocercal.info/forum/thread-1901.html I'm starting to put together the TX unit for my Pro2 Compact I just got a hold of.
So far everything's fine. I've managed to pull some components on the board what I already have, and ordering the rest of the components soon, but TXLED and FANLED is giving me a bit of a headache.

With a 10k resistor at R1 for TXLED and a 1k resistor at R10 for FANLED, what colour are the LEDs by default if one would just install the resistors as per v3.13 parts list?

Also, to get the colour I wish for the LEDs in question and to calculate the correct resistors for them, do correct me if I'm wrong if I'm assuming FANLED's resistor is rated for 9 Volts, because the fan itself is running with that voltage. What I'm missing is TXLED's resistor voltage. What might that be?]]> I'm starting to put together the TX unit for my Pro2 Compact I just got a hold of.
So far everything's fine. I've managed to pull some components on the board what I already have, and ordering the rest of the components soon, but TXLED and FANLED is giving me a bit of a headache.

With a 10k resistor at R1 for TXLED and a 1k resistor at R10 for FANLED, what colour are the LEDs by default if one would just install the resistors as per v3.13 parts list?

Also, to get the colour I wish for the LEDs in question and to calculate the correct resistors for them, do correct me if I'm wrong if I'm assuming FANLED's resistor is rated for 9 Volts, because the fan itself is running with that voltage. What I'm missing is TXLED's resistor voltage. What might that be?]]> <![CDATA[Pro2Plus Parts List R18 and R19]]> https://www.meteocercal.info/forum/thread-1899.html Fri, 18 Sep 2020 05:49:34 +0000 moolight0551]]> https://www.meteocercal.info/forum/thread-1899.html
This has probably been answered before but I cannot find it. Please point me in the right direction.

Thanks Dave]]>
This has probably been answered before but I cannot find it. Please point me in the right direction.

Thanks Dave]]> <![CDATA[WeatherDuino Pro2 Compact w/ Auriol H13726A not picking up signal]]> https://www.meteocercal.info/forum/thread-1897.html Tue, 08 Sep 2020 19:59:59 +0000 pecival]]> https://www.meteocercal.info/forum/thread-1897.html I've been fighting with this for 3 days now, but I have never been able to capture any traffic from my Auriol H13726A weather station.

Here are the changes I made to the code:
Code:
#define TH_SOURCE       3   // 0= Temp/Hum sensor connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Temp / Hum
#define WIND_SOURCE     3   // 0= Wind instruments connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Wind Speed & Dir
#define RAIN_SOURCE     3   // 0= Rain Gauge connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Rain Gauge
#define SOLAR_SOURCE    9   // 0= Solar Radiation sensor connected to TX_Unit 0, 1= for TX_Unit1, ..., 9 for not used
#define UV_SOURCE       9   // 0= UV sensor connected to TX_Unit 0, 1= for TX_Unit1, ..., 9 for not used......#define PRINT_DEBUG_WIFI
...
...
#define PRINT_DEBUG_AURIOL
#define PRINT_DEBUG_RF_MESSAGES
#define PRINT_GENERALDEBUG

Yet, the weatherduino never receives anything. The serial console doesn't show anything beyond the wifi connection is made.
I tried several strategies - remove batteries from the sensors and restart the head unit, then powering up weatherduino; factory reset on the weatherduino,...
My board didn't arrive with an antenna, so I attached my own (i'm saying this as am not sure it is a right kind as photo in this thread made me unsure).

[Image: jSa3rAsPieR8NP2?x=1916&y=617&a=true&file...calingup=0]
I also tried to stick in one of these, but had no luck with them either:
[Image: 433MHz-Helical-antenna-Copper-spring-antenna.jpg]

Here I tried to hit channel/search on the head unit to pair it with my rain sensor again - the head unit picked up the packets quite soon, with weatherduino staying idle.
[Image: XxkBpGCSSg7CjFs?x=1916&y=617&a=true&file...calingup=0]

I still hope I'm doing something wrong and there's no HW issue with my WD. Could you guys help me to troubleshoot the issue?
Thanks a lot!]]> I've been fighting with this for 3 days now, but I have never been able to capture any traffic from my Auriol H13726A weather station.

Here are the changes I made to the code:
Code:
#define TH_SOURCE       3   // 0= Temp/Hum sensor connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Temp / Hum
#define WIND_SOURCE     3   // 0= Wind instruments connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Wind Speed & Dir
#define RAIN_SOURCE     3   // 0= Rain Gauge connected to TX_Unit 0, 1= for TX_Unit 1, ..., 3 for Auriol RF Rain Gauge
#define SOLAR_SOURCE    9   // 0= Solar Radiation sensor connected to TX_Unit 0, 1= for TX_Unit1, ..., 9 for not used
#define UV_SOURCE       9   // 0= UV sensor connected to TX_Unit 0, 1= for TX_Unit1, ..., 9 for not used......#define PRINT_DEBUG_WIFI
...
...
#define PRINT_DEBUG_AURIOL
#define PRINT_DEBUG_RF_MESSAGES
#define PRINT_GENERALDEBUG

Yet, the weatherduino never receives anything. The serial console doesn't show anything beyond the wifi connection is made.
I tried several strategies - remove batteries from the sensors and restart the head unit, then powering up weatherduino; factory reset on the weatherduino,...
My board didn't arrive with an antenna, so I attached my own (i'm saying this as am not sure it is a right kind as photo in this thread made me unsure).

[Image: jSa3rAsPieR8NP2?x=1916&y=617&a=true&file...calingup=0]
I also tried to stick in one of these, but had no luck with them either:
[Image: 433MHz-Helical-antenna-Copper-spring-antenna.jpg]

Here I tried to hit channel/search on the head unit to pair it with my rain sensor again - the head unit picked up the packets quite soon, with weatherduino staying idle.
[Image: XxkBpGCSSg7CjFs?x=1916&y=617&a=true&file...calingup=0]

I still hope I'm doing something wrong and there's no HW issue with my WD. Could you guys help me to troubleshoot the issue?
Thanks a lot!]]> <![CDATA[Rain gauge Davis 7852]]> https://www.meteocercal.info/forum/thread-1890.html Wed, 12 Aug 2020 13:33:15 +0000 bombenm]]> https://www.meteocercal.info/forum/thread-1890.html Davis Rain gauge 7852 is noti more in production.
It has been replaced with 6464 / 6466 models. 
Do you know of the newone is compatible with the 7852 in weatherduino pro plus?

Thank you]]> Davis Rain gauge 7852 is noti more in production.
It has been replaced with 6464 / 6466 models. 
Do you know of the newone is compatible with the 7852 in weatherduino pro plus?

Thank you]]> <![CDATA[Multiple TX units]]> https://www.meteocercal.info/forum/thread-1870.html Wed, 01 Jul 2020 18:45:15 +0000 chsims1]]> https://www.meteocercal.info/forum/thread-1870.html
is there a limitation on the numbers of sensors controlled by one TX unit?  I am not familiar with Arduino Nanos, and wondered if there might be timing issues, where the processor is busy with one task.  I am looking to connect wind speed, direction, temp, humidity, rain and UV index.

Regards,

Ian]]>
is there a limitation on the numbers of sensors controlled by one TX unit?  I am not familiar with Arduino Nanos, and wondered if there might be timing issues, where the processor is busy with one task.  I am looking to connect wind speed, direction, temp, humidity, rain and UV index.

Regards,

Ian]]> <![CDATA[Solar Panel Power supply to TX Board]]> https://www.meteocercal.info/forum/thread-1869.html Wed, 01 Jul 2020 18:39:34 +0000 chsims1]]> https://www.meteocercal.info/forum/thread-1869.html
I've read the threads here, but they are a few years old.  What is the current thinking on solar panels, controller and batteries?  If nothing has changed, fine ... just wondering Smile

Ian

P.S. It would be good if people have particular recommendations for China imports, because I do find that digging down to the actual specifications can be difficult (principally because I don't know much about panels & control units).

P.P.S I live in the UK (Yorkshire) so I would be interested to hear how people have got on from the original discussions in https://www.meteocercal.info/forum/Threa...nits-power with higher latitudes.]]>
I've read the threads here, but they are a few years old.  What is the current thinking on solar panels, controller and batteries?  If nothing has changed, fine ... just wondering Smile

Ian

P.S. It would be good if people have particular recommendations for China imports, because I do find that digging down to the actual specifications can be difficult (principally because I don't know much about panels & control units).

P.P.S I live in the UK (Yorkshire) so I would be interested to hear how people have got on from the original discussions in https://www.meteocercal.info/forum/Threa...nits-power with higher latitudes.]]> <![CDATA[Best antennae]]> https://www.meteocercal.info/forum/thread-1855.html Sun, 14 Jun 2020 15:11:36 +0000 sarahdal]]> https://www.meteocercal.info/forum/thread-1855.html