Reef Discussion
I have now decided what I am going to running on the 1 wire bus -
1 x temp sensor for fresh water tank
1 x temp sensor for nano reef tank
1 x temp sensor for makeup water container
1 x temp/humidity sensor in nano reef tank canopy
1 x temp/humidity sensor in room housing the fish tanks
These are the temp/humidity sensors I have just ordered
http://item.mobileweb.ebay.com/viewitem?itemId=181007963977
Once I can get the above to display is some sort of graphical way, I am going to order the pH and ORP equipment.
For anyone thinking about doing this, I can highly recommend it. As you will have seen, I have asked a load a questions and have a ton more to learn. However, Rob is very helpful.....and patient! His design runs all this monitoring for a quarter of the price of anything equivalent and burns 1.5watts to run it!
Sent from my Nexus 10 using Tapatalk 2
1 x temp sensor for fresh water tank
1 x temp sensor for nano reef tank
1 x temp sensor for makeup water container
1 x temp/humidity sensor in nano reef tank canopy
1 x temp/humidity sensor in room housing the fish tanks
These are the temp/humidity sensors I have just ordered
http://item.mobileweb.ebay.com/viewitem?itemId=181007963977
Once I can get the above to display is some sort of graphical way, I am going to order the pH and ORP equipment.
For anyone thinking about doing this, I can highly recommend it. As you will have seen, I have asked a load a questions and have a ton more to learn. However, Rob is very helpful.....and patient! His design runs all this monitoring for a quarter of the price of anything equivalent and burns 1.5watts to run it!
Sent from my Nexus 10 using Tapatalk 2
:)I will now try to work out why I cannot see the sensors on the OWFS web server running.
So I started the OWSERVER in debug mode using this command -
So I started the OWSERVER in debug mode using this command -
This produced -
I then started the OWHTTPD in debug mode using this command
This produced -
After about 1 minuted the debug on OWHTTPD displays this error -
When I connect to it from my Linux laptop, I have the same problem as before e.g. I see everything apart from BUS.0 and the sensors (even though I can see them using OWFS) and the OWHTTPD displays -
Do a process listing for me
sudo -i
ps - el
pm me the result, i think you may have more than one instance running. When you are trying to start owserver owhttpd and owfs do you make sure its not already running ? I assume you still have your startup scripts in place.
Otherwise subscribe to the owfs forum and ask there.
sudo -i
ps - el
pm me the result, i think you may have more than one instance running. When you are trying to start owserver owhttpd and owfs do you make sure its not already running ? I assume you still have your startup scripts in place.
Otherwise subscribe to the owfs forum and ask there.
owfs mail listing, there's stacks of people with RPi's
https://lists.sourceforge.net/lists/listinfo/owfs-developers
Your ps listing looks ok, its gotta be something easy however cannot see it. Can you post up the owserver comand you are typing on the command line again. forget startup scripts and stuff you should be able to issue the owser and owhttpd straight on the command line. You should then see it in the ps listing. Make sure owfs is not running. Do you know how to kill a program once started ?
https://lists.sourceforge.net/lists/listinfo/owfs-developers
Your ps listing looks ok, its gotta be something easy however cannot see it. Can you post up the owserver comand you are typing on the command line again. forget startup scripts and stuff you should be able to issue the owser and owhttpd straight on the command line. You should then see it in the ps listing. Make sure owfs is not running. Do you know how to kill a program once started ?
For those using the WiPi wireless adapter I have found 2 tips on the Internet which maybe useful -
Enable Re-connect
By default the WiPi will not try and reconnect to your router if it drops the connections. Create a new script containing the commands below which will continually check for drops and reconnect if a drop is detected -
#!/bin/bash
while true ; do
if ifconfig wlan0 | grep -q "inet addr:"
then
sleep 60
else
echo "Network connection down! Attempting reconnection."
ifup --force wlan0
sleep 10
fi
done
Turn Off Power Saving
Add
wireless-power off
To your etc/network/interfaces file. I was getting a lot of drop outs and thought it was my power adaptor but it turns out this is a known problem with these adapters. I will have added this to my config and so far, no dropouts......will keep you updated.
Enable Re-connect
By default the WiPi will not try and reconnect to your router if it drops the connections. Create a new script containing the commands below which will continually check for drops and reconnect if a drop is detected -
#!/bin/bash
while true ; do
if ifconfig wlan0 | grep -q "inet addr:"
then
sleep 60
else
echo "Network connection down! Attempting reconnection."
ifup --force wlan0
sleep 10
fi
done
Turn Off Power Saving
Add
wireless-power off
To your etc/network/interfaces file. I was getting a lot of drop outs and thought it was my power adaptor but it turns out this is a known problem with these adapters. I will have added this to my config and so far, no dropouts......will keep you updated.
Ill try your wireless tips this week.
The humidity sensor is not 1wire so it does not use owfs. It uses a specific protocol which is not common however noticed adafruit have created a program that that reads the data for the 11 and 22 sensors, not sure if it handles the 21 sensor. Each of these 3 types have different data registers
The humidity sensor is not 1wire so it does not use owfs. It uses a specific protocol which is not common however noticed adafruit have created a program that that reads the data for the 11 and 22 sensors, not sure if it handles the 21 sensor. Each of these 3 types have different data registers
You had any more ideas on using cosm for collecting data. I am still trying to get my head around cosm but it would be good to just have the pi as a data collected and for it to post to a website. This way, we would not need to open up ports on routers to view the pi's data when not on your own network and the data would be reachable anywhere in the world!
There I go again....loads of ideas and not enough of my own knowledge to implement them!
There I go again....loads of ideas and not enough of my own knowledge to implement them!
There are already a few posts on using cosm http://blog.ricardoarturocabral.com/2013/01/pushing-raspberry-pi-data-to-cosm-using.html
should be easy once you can get the data from sensors to send it.
should be easy once you can get the data from sensors to send it.
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