But that's what laulau's using with his push button test.mcrossley wrote:Oh for a good old fashioned physical serial port
Welcome to the Cumulus Support forum.
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4018) - 28 March 2024
Legacy Cumulus 1 release v1.9.4 (build 1099) - 28 November 2014 (a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4018) - 28 March 2024
Legacy Cumulus 1 release v1.9.4 (build 1099) - 28 November 2014 (a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Re: Hydreon double tips
- steve
- Cumulus Author
- Posts: 26702
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Hydreon double tips
Steve
-
- Posts: 365
- Joined: Wed 07 Jan 2009 10:36 pm
- Weather Station: wh1081
- Operating System: windows 10
- Location: Oban Scotland
Re: Hydreon double tips
just tried putting water into the tip bucket and checking the log. strange results on low rate tips always two ons before off.on higher rate of tips always just on/off.
so low rain fall would read higher but high rain fall would read ok. could be the reed is held closed longer for the lower rate as the bucket moves the magnet over the reed switch.
is it worth continuing with this testing with out a rg11 connected?
so low rain fall would read higher but high rain fall would read ok. could be the reed is held closed longer for the lower rate as the bucket moves the magnet over the reed switch.
is it worth continuing with this testing with out a rg11 connected?
- steve
- Cumulus Author
- Posts: 26702
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Hydreon double tips
I suspect not. It looks like this is only going to work with a real RG-11, and fortunately that does seem to work, as Alan has shown.bruce45 wrote:is it worth continuing with this testing with out a rg11 connected?
Steve
-
- Posts: 365
- Joined: Wed 07 Jan 2009 10:36 pm
- Weather Station: wh1081
- Operating System: windows 10
- Location: Oban Scotland
Re: Hydreon double tips
so tip bucket on direct rs232 port not a good idea due to not been accurate.
just have to wait till my RG11 arrives and then test it on the port to see if it shows double tips.
have we proved anything with these tests or is it we just like playing with gadgets and causing Steve a few headaches
just have to wait till my RG11 arrives and then test it on the port to see if it shows double tips.
have we proved anything with these tests or is it we just like playing with gadgets and causing Steve a few headaches
- mcrossley
- Posts: 12695
- Joined: Thu 07 Jan 2010 9:44 pm
- Weather Station: Davis VP2/WLL
- Operating System: Bullseye Lite rPi
- Location: Wilmslow, Cheshire, UK
- Contact:
Re: Hydreon double tips
Ah missed that.steve wrote:But that's what laulau's using with his push button test.mcrossley wrote:Oh for a good old fashioned physical serial port
One thing, as far as I can see the relay is just connecting DTR to DSR during a tip creating a +ve signal. RS232 normally requires a -ve signal to register the 'low', this relay connection is just leaving open circuit and floating is it not? - you need a pull down resistor in there.
If Cumulus set the port to have RTS low, could you not use that as your pull down voltage?
Edit: Come on England!
- steve
- Cumulus Author
- Posts: 26702
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Hydreon double tips
Good point.mcrossley wrote:this relay connection is just leaving open circuit and floating is it not? - you need a pull down resistor in there.
I can easily explicitly set it low - it might be low by default anyway.If Cumulus set the port to have RTS low, could you not use that as your pull down voltage?
Steve
-
- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Hydreon double tips
Hi,steve wrote: it might be low by default anyway.
Yes I'm fairly sure it is, and the lack of a pull-down is a good point (although it does seem to work without).
BTW, rather than having to use a second COM port for the "It's Raining" and "Rain Bucket Tip" signals, would it be possible to use two of the input handshake pins to the PC on one port? I believe that DCD, CTS and RI are all inputs (in addition to DSR), but don't know which are supported, particularly with USB-serial adapters. But I've always considered CTS to be the "normal" handshake pin and it appears that DCD is more normally paired with DTR in null modem apps.
Cheers, Alan.
Re: Hydreon double tips
So, for a non techy like me, how do you calculate the size of the resistor and what pins would you connect to?steve wrote:Good point.mcrossley wrote:this relay connection is just leaving open circuit and floating is it not? - you need a pull down resistor in there.
Duke
- steve
- Cumulus Author
- Posts: 26702
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Hydreon double tips
Yes, good idea; I can add that as a configuration option.AllyCat wrote:would it be possible to use two of the input handshake pins to the PC on one port?
Steve
-
- Posts: 365
- Joined: Wed 07 Jan 2009 10:36 pm
- Weather Station: wh1081
- Operating System: windows 10
- Location: Oban Scotland
Re: Hydreon double tips
this is the pinout for rs232
this is the pinout for usb
how this work with a usb to rs232 converter listed before
not sure
how the rs232 conditions relate to usb date no idea
but may be someone out there can help and then Steve might be able to use that info to sort this out
this is the pinout for usb
how this work with a usb to rs232 converter listed before
not sure
how the rs232 conditions relate to usb date no idea
but may be someone out there can help and then Steve might be able to use that info to sort this out
You do not have the required permissions to view the files attached to this post.
-
- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Hydreon double tips
Hi,duke wrote: how do you calculate the size of the resistor and what pins would you connect to?
The value won't be critical, perhaps 22k ohms but anything between say 10k and 100k should be fine. Not much power so a normal "1/4 (quarter) watt" or less will be OK.
Connect between pins 6 and 7, 6 being the first pin on the lower row (of 4) which is currently being used and 7 is next to it on the same row (Ah, Bruce has given us a picture).
Cheers, Alan.
-
- Posts: 365
- Joined: Wed 07 Jan 2009 10:36 pm
- Weather Station: wh1081
- Operating System: windows 10
- Location: Oban Scotland
Re: Hydreon double tips
still think until we can get tests done on direct rs232 port with the rg11
after some testing of the fo tip bucket reed switch with the swinging arm in the lower position either left or right the reed is closed as it moves the reed goes open and then closed
this could explain when i had it connected to the rs232 port i was getting a rain fall on start up but it does seem to dismiss the timing that the contact is closed for causing more on's than off's
any thoughts about this
after some testing of the fo tip bucket reed switch with the swinging arm in the lower position either left or right the reed is closed as it moves the reed goes open and then closed
this could explain when i had it connected to the rs232 port i was getting a rain fall on start up but it does seem to dismiss the timing that the contact is closed for causing more on's than off's
any thoughts about this
Last edited by bruce45 on Sun 24 Jun 2012 9:29 pm, edited 1 time in total.
- steve
- Cumulus Author
- Posts: 26702
- Joined: Mon 02 Jun 2008 6:49 pm
- Weather Station: None
- Operating System: None
- Location: Vienne, France
- Contact:
Re: Hydreon double tips
They're not related in any way. The hardware converts the serial data into USB, and the driver software converts it back again. Cumulus has no idea that USB is involved at all; conceptually it's just the same as a real serial port.bruce45 wrote:not sure
how the rs232 conditions relate to usb date no idea
but may be someone out there can help and then Steve might be able to use that info to sort this out
Steve
-
- Posts: 365
- Joined: Wed 07 Jan 2009 10:36 pm
- Weather Station: wh1081
- Operating System: windows 10
- Location: Oban Scotland
Re: Hydreon double tips
thanks for that Steve i supose the use of the usb interface is only as that is what most pc's / laptops have unlike the older ones with both serial and parallel ports no usb.
nothing to do with this but i had to get rid of my printer the other day it was a parallel printer epson 620 only had it for 15 years but got to the point that could not get cheap inks for it, many waste ink resets done. it might have been slow and noisy but dont think i can really complain for the work it has done.
maybe someone has a printer still working thats older would it be worth starting a topic about how long hardware can last.
nothing to do with this but i had to get rid of my printer the other day it was a parallel printer epson 620 only had it for 15 years but got to the point that could not get cheap inks for it, many waste ink resets done. it might have been slow and noisy but dont think i can really complain for the work it has done.
maybe someone has a printer still working thats older would it be worth starting a topic about how long hardware can last.
-
- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Hydreon double tips
Hi,bruce45 wrote: either left or right the reed is closed as it moves the reed goes open and then closed
Are you sure? I don't think it's supposed to work that way; the reed should close when the see-saw tips.
In principle, it could work either way, but if normally closed it will produce "false rain" whenever the cable is unplugged (and drain a little more power from the batteries). I've just tried unplugging the rain cable from my "test" unit several times and the rain count hasn't increased, indicating that the reed must be open.
Cheers, Alan.