[Barrow4491]

I decided to build this project after seeing the articles in Silicon Chip Magazine in March, April and May 2015. I live in a 3 level unit and have access to the roof above above, this seemed to be the ideal place to site the instrument mast and the TX unit.

I am an electrician by trade and have always had an interest in electronics, so after months of trawling through the forum to get some ideas, I eventually I ordered the boards and some parts on EBay in July 2016. As the parts slowly arrived Idecided to construct the RX board first and have virtually completed it today, only waiting for the SMA pigtails to the antennas.

I have no experience in Arduino programming but have managed to get it going in test mode but received some comments after the upload was done regarding memory.

"sketch uses 28,044 bytes (91%) of program storage space. Maximum is 39,720 bytes.
Global variables use 1,602 bytes(78%) of dynamic memory, leaving 466 bytes for local variables. Minimum is 2,048 bytes. low memory available, stability problems may occur."

My RTC is not on the correct time or date but with my limited programming skills I need some advice. This may be the problem with the memory issue as I am sure I read somewhere in the forum that it uses RTC memory ???

I will post some photos when I get it completed.
Thanks in advance,
Regards
Jim A

[hornychz]

"sketch uses 28,044 bytes (91%) of program storage space. Maximum is 39,720 bytes.
Global variables use 1,602 bytes(78%) of dynamic memory, leaving 466 bytes for local variables. Minimum is 2,048 bytes. low memory available, stability problems may occur."

My RTC is not on the correct time or date but with my limited programming skills I need some advice. This may be the problem with the memory issue as I am sure I read somewhere in the forum that it uses RTC memory ???

I will post some photos when I get it completed.
Thanks in advance,
Regards
Jim A

Hi Jim.

Welcome and have a lot of fun.

Perhaps you will get someone more qualified answer, but so far at least comments from me:
1) There is Low-Memory fight (or rather Werk_AG Low-Memory fights), but the present situation is probably okay
2) The time is automatically synchronized with the computer connected (for example, in my case CumulusMX on Raspberry Pi)

The picture is certainly all looking forward to.

Regards

[spudstrawb]

The memory warning is standard. It still works fine.

The RTC will get updated by CumulusMX. Until you have it connected to CumulusMX, the date and time won't show correctly.

[Barrow4491]

"sketch uses 28,044 bytes (91%) of program storage space. Maximum is 39,720 bytes.
Global variables use 1,602 bytes(78%) of dynamic memory, leaving 466 bytes for local variables. Minimum is 2,048 bytes. low memory available, stability problems may occur."

My RTC is not on the correct time or date but with my limited programming skills I need some advice. This may be the problem with the memory issue as I am sure I read somewhere in the forum that it uses RTC memory ???

I will post some photos when I get it completed.
Thanks in advance,
Regards
Jim A
Hi,
Thanks for the info, I have allowed for a Pi built into my receiver but am still a few weeks away from that

Hi Jim.

Welcome and have a lot of fun.

Perhaps you will get someone more qualified answer, but so far at least comments from me:
1) There is Low-Memory fight (or rather Werk_AG Low-Memory fights), but the present situation is probably okay
2) The time is automatically synchronized with the computer connected (for example, in my case CumulusMX on Raspberry Pi)

The picture is certainly all looking forward to.

Regards

[uncle_bob]

There's also a builtin (in the Arduino IDE) sketch you can set the clock on the RTC module, though when you upload the WeatherDuino sketch it will be overwritten.

Great to hear to you checked out the Silicon Chip articles

[zitoune]

I decided to build this project after seeing the articles in Silicon Chip Magazine in March, April and May 2015.

I also started thanks to Silicon Chip magazine

I have no experience in Arduino programming but have managed to get it going in test mode but received some comments after the upload was done regarding memory.

Not a problem rather easy to deal with, you will see!

Looking forward to seeing your pictures.

[Barrow4491]

Hi,
I am progressing slowly with my system and am currently testing my Receiver and Wd unit,
I am getting readings of wind, rain, (inside temp and RH as the outside sensors not in place yet), and on the receiver Atmospheric pressure.
It all looks reasonable except for solar radiation (1254 Wm2) and UV Index (17.1). Don't know where that is coming from as the sensors are enabled in software but not present yet.

I have a couple of issues with the WD;
I am not getting Atmospheric pressure relayed
The Tx info screen shows two TX units 0 and 1 but I only have Unit 0 at present. Can I stop the TX1 info from displaying?

I will post some photos with a bit of information re the construction in the next few days.
Thanks
Jim

[zitoune]

Hi,
I am progressing slowly with my system and am currently testing my Receiver and Wd unit,

Congratulations for the job already done!

It all looks reasonable except for solar radiation (1254 Wm2) and UV Index (17.1). Don't know where that is coming from as the sensors are enabled in software but not present yet.

Yes indeed it's normal - as long as those sensor are not there you will get funny reading due to the voltage present at the arduino entry.

I have a couple of issues with the WD;
I am not getting Atmospheric pressure relayed

You read it correctly on the RX?

The Tx info screen shows two TX units 0 and 1 but I only have Unit 0 at present. Can I stop the TX1 info from displaying?

This is expected: you will see a series of zeros under the TX1 area if you have only one emitting.

I will post some photos with a bit of information re the construction in the next few days.

Looking forward to it!

Regards,
Zitoune[/quote]

[Barrow4491]

I get a correct reading on the RX for ATM
So I can't change the display for only one Tx?

[zitoune]

I get a correct reading on the RX for ATM
So I can't change the display for only one Tx?

Well, in theory this is something you could do - it's about modifying the graphics part of the code, but probably you may prefer to leave it as is.
In the future it will motivate you to build a second TX like me

Regarding the ATM, not too sure - try to recompile?