To get started, I ordered the internet bridge, a tower sensor, and a floating pool sensor. The tower sensor supplies both temperature and humidity data, and honestly 8 bucks for one of these is a great price. The bridge has a flip-up antenna and two connections, one RJ for a network cable, and one jack for the power plug.

The MAC address of the Internet Bridge can be found right on the bottom of the unit. Time to plug it in! I pulled the connection before the firmware update could complete just in caseand started to take a closer look at the data sent to the Acu-Link web app via the packet capture.

Next, I tried reconnecting the bridge, but this time with WAN access blocked, and ran a full port scan. The actual variables had additional digits and letters, but the values were still cleartext within this group of digits.

I obfuscated the actual value here, but this is the MAC address of your Internet Bridge. The 3rd-5th digits are the relevant ones here, with a decimal point required between the 4th and 5th digits, yielding a value of This denotes the received signal level for the specific sensor, and varies from All of this data is super-easy to parse in just about any language.

TCP dumps are nice for post-analysis. Grabbing additional data from other sensors would be done just be adding additional handlers for each data type wind speed, rainfall, etc. I can then query this data from other scripts, or POST it elsewhere like weather underground, etc. A quick visit to MyBackyardWeather confirmed it was again getting fresh data.

There is even mention that they may offer the ability to query this data directly in the future, but in the meantime: You could never tell you work in IP!!! Your concise explanation was waaayyyy over my head. I bought a AcuRite weather station and am thinking of getting one of the bridges.

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I am having trouble getting the bridge to work. The lights are both steady. Blinks once maybe every 2 minutes. My Actiontec router GTWG shows the Mac address as I can view the web page of the bridge. So far tech support at Acu-Rite has not been that helpful. Any help would be greatly appreciated. Is the full MAC displayed for other interfaces on your network?

Thanks for the great info. I have run with your idea and am currently developing a php solution with a database driven front end. I have two questions. Have you decoded the data values from the bridge. It appears to send 13 different bridge values. Have you experienced the bridge sending data to your rerouted DNS entry for about 5 minutes and then reverting to sending to the my backyard weather link? I am wondering if they have a hardcoded IP address or Secondary DNS server.

I have not decoded the data from the bridge itself. I have not experienced the bridge sending data to a different IP intermittently. Are you sure your bridge is only querying a single recursive DNS server for your override?

Hi Rich, Thanks for the reply. I think I have gotten close with the Barometric Pressure. It is not exactly what their site shows as I think they are making a correction based on region.

I emailed the company to see if they would give me the spec for the variables. Long shot but worth a try. Can you send me your email address so I can send you a link to my server to check out the working copy.

For what it is worth, I think they have some algorithm for calculating the barometer adjustment based on hours to days worth of accumulated data.

Do you know if the bridge posts data for all sensors in range, or just the 3 sensors that you can have configured on your aculink account at any one time? Is there such a thing? My router has a whole bunch of settings. They have names including: From fiddling about with my various sensors, and due to glitches in the aculink dashboard that sometimes end up showing me data from four sensors, I get the feeling the bridge must report all sensors but aculink might only actively store the data for three….

I use a web server to exec the script. I did some searching and the calculations for the EPCOS T look close as does the MSC, but neither are quite right.

No DNS, no DHCP, no Web server, no proxy I just now need to figure out how to interpret everything. I cleaned up my PHP scrip and posted it here: I used this data sheet for the formulas: I just made an educated guess picking it based on the specs. However, the formulas seem to work. These seem to be the values PR and TR coming from the bridge.

Wind speed is reported as centimeters per second Convert to miles per hour by dividing by The image of the HP03S in the datasheet matches the device that is in the display unit I have. Just had a significant rain event.

The corrected pressure seems to match well with canadian tax on income earned overseas sites around me. It takes station altitude out of the picture and allows isobar maps to make sense…. The formula forex bonus di benvenuto senza deposito casino online con outlined in the first data sheet I posted.

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Apparently there are different formulas for forex chart reviews and aviation. It just seems easier to take station altitude into account than calculating running averages over time for this application. So we did get some rain, not much. I have a few of these online forex brokers in india A since it is supposed to tip every.

When I tried some of the altitude corrections it seems backwards and not enough. Like I posted above, I need to add about The site I found that would do altitude and position adjustments wanted to subtract about 43 mb from my reading.

Have you considered a third-party package for reporting and graphing? I also now have the bridge reporting to Wunderground at about 1 minute intervals. I have one more change I want to make. Right now I wait until I have all the data I need from the bridge before sending it, but I want to synchronize it with the pressure since that comes from the bridge at 1 minute intervals.

KCAELDOR15 is my experimental station. I have a tower sensor mounted under the 5n1 and can use the humidity value from that. Next I want to dump the data into a database. I switched from hi-jacking the the http: Write the data to a local on my network MySQL database.

I figure more is better, right? Since this is supposed to come at 36 second intervals, I should always see at least one report in the 1 minute intervals between pressure readings.

This may be a sign that the batteries in the 5n1 are getting weak. Hate to necro an old thread, but how exactly did you get your original script bunnings opening hours anzac day qld execute?

Thanks for the very useful info. I did find an issue with the logic that translates the wind direction into degrees. Doing the math on the HEX values was working for some directions and not for others. Anyways, I ended up coding a series of CASE statements and I got it working properly. BTW, I have coded the logic to calculate the dew point — if anyone wants it.

The current corrected code can be found here: I have the Acurite 5 in 1 and cannot find the MAC address on the console. Wa it on a sticker that fell off or can I find it somewhere else? Perhaps that would reveal some clues? I was curious if it may respond to SNMP requests. I may end up just sniffing the traffic using my Linux box and getting the data as you posted here. This is a great writeup. Mike, as far as the MAC address, it should be on the bottom of the Internet bridge.

I doubt there is any way the sticker would fall off. But that of course involves the rf side of things. Seems more complicated, esp if multiple sensors are involved, imho.

Acurite said I could simply buy another bridge options trading hardwarezone another three sensors. This seems expensive and limited, and thus kinda dumb. I began to wonder if this limitation to 3 devices per bridge is arbitrary.

Or even if you are connected to their service. If the goal is lots of sensors and one bridge, the acu-link site becomes a bit irrelevant, except for firmware updates. Thus maybe the goal would be to build a little server to spoof the whole Cheney end of things, and do whatever with the data.

How much money did the movie titanic make in 1997 wonder if there are any secret commands in the how to get rich in farmville 2 to request the sensor data as a web page?

Other thing I wonder is how many sensors a site can endure?

Sloppy by-hand observation of the two tower sensors I have seems to show slight differences overall in the transmission intervals of each device, and each device alternates slightly longer and shorter with each successive transmission. Bridges have a pressure sensor in them.

I assume this is because the weather stations do not, and the remote displays do. So that function must be duplicated in the bridge. Wonder if the pressure reading needs to take place inside for a fairly consistent temp? Just put up a 5-in-1 outside and a tower on the inside of the cottage.

So I can track the lake temp. Before next winter I want to get a 3M so I can turn up the temp before we head up. I have a question on the amount of data going back and forth between the bridge and acu-link. Anyone have any info?

Also right now it looks like the bridge is sending data every 12 minutes. Based on having a 5n1 and two tower sensors, the bridge is sending the date for all three. As part of its data packet, it includes the sensor ID number so you can figure out which sensor the data is for.

AFAIK, no one has found any way to query the bridge for sensor data. A few of us have requested that type of feature from Acurite. The bridge would probably need additional internal storage and it would be a fairly large feature that would need testing and support for every firmware release.

The bridge also has a temperature sensor in side it well the pressure sensor chip includes that. That data is needed to convert the raw data from the pressure sensor into a corrected reading. The bridge forwards data immediately to the server. So how much and how often data gets sent really depends on which sensors are attached. I just collected the raw sensor data over a 2 minute period and it was bytes.

So roughly 2MB of data a day. You can use these tags: Home About the Author Music.

AcuRite Acu-Link Internet Bridge TRX: Once connected, the Internet Bridge did two things: DIYHow-toTech. Vince Rounds December 14th, Rich December 15th, Spencer December 15th, Rich December 18th, Hi Spencer, Is the full MAC displayed for other interfaces on your network? Timothy C January 9th, If you are interested in the code I would be happy to share.

Rich January 10th, Hi Timothy, I have not decoded the data from the bridge itself. I would love to see the code. Please feel free to link to it in a comment here.

Timothy C January 12th, I also figured out my intermittent problem. It was just a DNS issue.

Bruce April 18th, Rich April 19th, Bruce, Depends on the router, as in, it varies from model to model. Bruce April 20th, George May 7th, Have you done anything more with this? I assume you execute that script via a web server, or is there a more clever way? Rich May 7th, George May 14th, Heck, I might just bypass MBW and send the data directly to Wunderground in RapidFire format. My main goal, though, is just to preserve the amount of rain fallen. George May 18th, Timothy C was looking for some info about how certain values are calculated.

This spec sheet might be helpful. Bob May 24th, Has anyone made any more progress on decoding the pressure data? George May 25th, Bob May 26th, George, The decoding of the values is described in the article. George May 26th, At least absolute pressure that agrees with MBW. Bob May 27th, George, The image of the HP03S in the datasheet matches the device that is in the display unit I have. That formula is working for me too.

Great detective work to find the sensor! George May 27th, Bob May 28th, George May 28th, That surprises me as I was expecting it just to be the number of bucket tips.

George June 2nd, Bob June 9th, Bob June 14th, Ray Pfaff November 9th, Kevin Key November 12th, Rich November 12th, Hi Ray, I used a ScriptAlias: Ray Pfaff November 12th, I was trying to make this too complicated! Nincehelser December 4th, Ray Pfaff December 7th, It should be when temp 3 MPH. Ah I get it, the post allows embedded html lt 50F, gt 3. Mike December 25th, Matt December 26th, Lakshmi Aiyer January 5th, Joseph January 15th, Thanks for the report.

Richard February 3rd, Bob February 27th, Just to clear up a couple questions from recent comments. Phil March 4th, Has anyone managed to get the data direct via USB from an Acurite system and not via the bridge?

Andy September 12th, Just wondering how much data in size is sent via the bridge over a 24 hour period. Leave a Comment Click here to cancel reply.