Category: Weather

MQTT – Finally!

After a few months of off and on again trying to get my data parse, collect and displayed the way I wanted it. I finally found a little tid bit of info that pointed me in the right direction.

rtl_433 -F “mqtt://192.168.1.15:1883,retain=0,devices=Pipedream/TempSensors/[protocol]/[id]” -M utc

As you can see I am using rtl_433 to receive data from various sensors around the buildings. It gets sent to our MQTT Broker for redistribution to computers that have subscribed to selected topics. Since we have a few sensors of the same model we use [protocol] to group those sensor together, but each sensor has its own feed.

Funny thing is we are now finding sensors, we didn’t know about. We will be watching the data being collected and see if we can figure it out.

Below are the sensors we need to figure out (what they are) 211 and 17. All the rest (so far) we can already id and parse the data correctly.

MQTT – Finally

Finally able to Subscribe and Post Data to a MQTT broker/server.

As always, examples found on the internet, are incomplete, or are just copies of someone else’s post. One of the most popular examples has both Post and Subscribe in one, but of course doesn’t really work without a great deal of review.

Basically you have a server, what they call a broker, that receives all the MQTT traffic., then it allows others to subscribe and monitor the data being posted.

So my setup has a rtl_433 receiver that collects all the sensor data from 433 devices and parses it. Sensors include weather stations, remote temperature, door switches and motion detectors. At present all I am handling is the temperature sensors. Each sensor has an ID which I track, noting it location on the property. Then they also have temperature (of course) and humidity. The sensors sends a lot of other data, but that is all I really need. I then send the data back to broken parsed, into another channel for my use..

The coal is to parse the incoming data into a control panel that will display sensor data, like a dashboard. Basement sensor always in same location, for example. Graphically.

Sensor appear to just send data in a timed manner, once every few minutes. They don’t care if anyone receives it, just throw out over the airwaves. The SDR receives the data, parses it, the Posts to the Broker. The Broken in turn basically doesn’t the same thing as the sensor, it just rebroadcasts the data for anyone that has Subscribe to that Topic. My webpage Subscribes to the Topic and reparses the data and displays it.

Getting there!

New Weather Station – 1 of 2

[:en]After a long absences I’ve finally be able to return to my technology projects.

The first one I needed to get out of the way is the weather station. Had built one a few years back, but it was destroyed by an ice storm. Therefore I had to built a new one with a more permanent foundation.

 

 

 

 

 

 

 

 

 

 

 

 

 

Attempted to make the system completely wireless but somehow no matter what I tried it would be limited in one way or another. So I ended up using a Raspberry Pi that has a UPS board attached to network using a POE adapter. So the Pi gets its power from the network, although the Pi connects to the network wirelessly. And since we had to run one wire, we ended up pulling a 12 volt dc wire also, this allows the addition of more ‘features’ to the pole.

As you can see there are 4 solar panels, 2 – 6 volt and 2 – 12 volt. At this point they are only being used for a string WS 2801 RGB LEDs powered through solar chargers. Sort of controlled Christmas lights. I am attempting to make the LEDs controllable from web site.

The Weather Station consists of an Arduino with a Sparkfun Weather board and sensor array, with a lightning detector attached. A Raspberry Pi connects to the Arduino and a Relay modular.  Currently everything is crammed into a plastic project box mounted on the pole. Will clean it up once new boxes come in.

My neighbors have a hill behind their house, the hill top is about 300 feet away and the hill is maybe 50 feet high. My plan is to add another weather pole on top of the hill, to see how that affects wind and temperature.

 

 [:de]After a long absences I’ve finally be able to return to my technology projects.

The first one I needed to get out of the way was the weather station. Had one, but it was destroyed by an ice storm a couple of years ago. Therefore we rebuilt a new one with a more permanent foundation.

 

 

 

 

 

 

 

 

 

 

 

 

 

We attempted to make the system completely wireless but somehow no matter what we tried it would limit us one way or another. So we ended up using a Raspberry Pi that had a UPS board attached network using a POE adapter. And since we had to run one wire, we ended up pulling a 12 volt dc wire also, this allows us to add more ‘features’ to the pole.

As you can see there are 4 solar panels, 2 – 6 volt and 2 – 12 volt. At this point they are only being used for a string WS 2801 RGB LEDs powered through solar chargers. We are also attempting to make the LEDs controllable from web site.

The station consists of an Arduino with a Sparkfun Weather station and lightning detector attached. A Raspberry Pi connects to the Arduino and a Relay modular.  Currently everything is crammed into a plastic project box mounted on the pole. Will clean it up once new boxes come in.

 

 

 [:]