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Build Your Own Data Logger Community / Feed

Welcome to the official group forum for our virtual course, Build Your Own Data Logger. This is your space to engage with course instructors Akiba and Jacinta from Freaklabs, find help and resources for each module, collaborate and chat with your fellow course participants, and share your progress on your own Data Logger project!

discussion

Avian nest box monitoring 

Hi. I’m hoping there’s a guru out there who can advise on tech for monitoring conditions inside avian nest boxes? Links to data loggers and endoscopes they’ve used successfully...

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Maybe this is a starting point. Any idea if this product would work inside the box. Kestrel DROP D3 Wireless Temperature, Humidity & Pressure Data Logger https://amzn.eu/d/5VdQwtA  

I'd be interested in any camera monitoring setups that can be used inside a nest box. Most camera traps are too bulky for this purpose. All the devices I've looked at either need a wired connection or a wifi network to transmit images. I want one that can store all info to an SD card and preferably be solar powered. Obviously infrared or starlight sensitivity. Sound recording would be a bonus for some bird monitoring I want to do.

Done lots of this over the years and it depends on the species really. If you want incubation behaviour  and hence success or otherwise using temperature then the Thermocron IButton DS1921G is perfect. The new Blue Maestro is an option I became aware of this year but I haven't tested at scale.

In terms of cameras and endoscopes I've tailored many off the shelf products and built a few from scratch. When I get chance I'll have a look around and see what is still available.

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Link

How To Use An Arduino – Beginners Guide

For anyone interested in WILDLABS' Build Your Own Data Logger course, this beginner's guide to Arduino may be a valuable resource! This page also includes links to other relevant resources on Arduino language and getting started with Arduino software for the first time.

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discussion

Rainforest SigFox available for use

Hi EveryoneJust FYI that right now we now have a SigFox gateway running to create an IoT network at the Los Amigos field station in lowland Peruvian Amazon.  Amazing forest,...

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Hi Roland,

This is awesome to hear about! I'm just starting my PhD in computer science and am very interested in IoT environmental data collection and wildlife monitoring.

I'm not far enough along yet to have anything to test, but if I would love to learn more about your network setup and to see the range map especially as it relates to propagation through different sections of the canopy and different vegetation density. Do you plan on keeping you network going for a while? And are you using the network exclusively for wildlife location tracking?

Cheers,

Eric Greenlee

Hi Roland,

This is really amazing, great to hear about your set-up! I'm just wondering what the overall cost was to set up this system? Just thinking in terms of setting up something similar in other parks and what they should expect with regard to price. Would also be great to hear about the overall effort, e.g., hours/team members required. It would be great to have this act as a blueprint for other organizations/research stations wishing to deploy a similar system within their respective national parks/areas/etc.! 

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Module 8: In the Field

Akiba
Welcome to the eighth and final module of our Build Your Own Data Logger virtual course. We’ve built, coded and tested our data logger. Now we’re taking it into the field. 

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Module 6: Ruggedising Devices

Akiba
Welcome to the sixth module of our Build Your Own Data Logger virtual course. In these videos, we’ll discuss ways to protect devices from water, dust and animals. Then we assemble the WildLogger using cable glands so...

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Module 7: Testing and Piloting

Akiba
Welcome to the seventh module of our Build Your Own Data Logger virtual course. In this module, we take our fully assembled system into the lab, sandbox and pilot test environments. 

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discussion

Module 5: Optimising your application

Hi everyone,  Module 5 is now available! Please use...

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Hurray !, we were waiting impatiently for it, now we can put our babys to sleep and let them only work what is necessary!
I've started to see a bit of the content, and as always, it's exceeding my expectations.
Congratulations on your excellent work!

Thanks a lot for the new module!
It now keeps logging and logging and logging....

Greetings from Austria,
Robin

Glad to hear it's working! We're now working on the last couple modules which is more mechanical and assembly. Hoping to get those out soon. We're feeling a bit of pandemic fatigue so progress is slower than usual. Ha ha ha.

Akiba

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Module 5: Optimising Your Application

Akiba
Welcome to the fifth module of our Build Your Own Data Logger virtual course. In these videos, we’ll optimise our data logger application, and add the finishing touches to application code so it’s ready for deployment. 

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discussion

Wildlogger for freshwater monitoring

Hi Akiba, Jacinta, and wildlogger group. We're proposing to trial Wildloggers for monitoring freshwater [streams], starting with water temperature and dissolved...

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Hi Nigel.

At the moment, I don't know of any other groups doing water monitoring. @JAL is doing a cave monitoring project. The DS18B20 is a nice sensor. It was the original sensor I was going to use for the Wildlogger kit before switching to the DHT11. One thing is that you may need to test how waterproof it actually is. When I took them apart, there was just a heat shrink tubing seal to the DS18B20 with exposed pins inside the stainless steel tube.  
I haven't had the chance to play with a DO sensor yet, but definitely hoping for more info once you deploy. It sounds like a fascinating project.

Akiba

Hi Nigel,

Are you interested in attended or unattended monitoring?  You can take inspiration from openctd, also the cave pearl project which has a few variants.  IMO the atlas instruments are probably the safest way to go.  Water quality sensors are frightfully expensive, and even Atlas sensors are spendy in my book.

I heard there was a chap calibrating DS18B20 units (NIST traceable) for USD20 or so, that would partially remove the accuracy issue (the 18B20 is accurate to 0.5degC only).  The 18B20 can come already waterproofed which is convenient.

 

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discussion

BLE connection problems

Hello Akiba and Jacinta, I am doing connection tests of the Wildlogger through the BLE HM-10 module and I have a problem for which I can not find a solution I have connected the...

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Hi Jose.

I somehow missed this post. I can't fully understand the issue you're running into. Can you post the code you're using? Also if you can, perhaps a rough diagram of how you're interfacing the BLE HM-10 to the Wildlogger? It sounds like you somehow have it connected to the USB dongle interface? And then the other side of the Bluetooth connection is connected to the PC? It sounds like an interesting application.

Thanks.

Akiba

Hi Akiba,
It seems to me that I have not explained myself well, as it is a somewhat special topic, if you think I will answer you in private. These days I'm a bit busy, but I hope I can answer you soon
Best regards,

Hi JAL. 

No problem. Feel free to email directly or private message through Wildlabs on the specifics. No rush either. I think it's interesting that there seems to be interest in adding a BLE interface to the system. It's the second time hearing about it :)

Akiba

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discussion

Power saving

Hi Akiba and Jacinta, wonderful course!!! further to my previous email, we're testing batteries and for some reason I can't get more than 24-hrs with 3x AA...

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Hi Nigel. 

it makes sense that the batteries don't last long. Since we haven't discussed the power management part of the code, you're in active mode the whole time. The power drain will be high and you won't get more than a day or two of battery life. 

What you need is to disable any peripherals you're using and put the Wildlogger into powerdown (aka sleep) mode. Then use the real time clock to wake your system up periodically to take measurements, say every hour. That's actually going to be what we do in module 5 which I'm actually working on right before I took a break to check the interwebz. 

With the right power management, you should be able to keep the system going for a month or longer depending on the power draw of the sensors you want to use. With the DHT11, PIR, and SD card, we estimate around 2.5 months but that depends on the power draw of the SD card. 

If you can have some patience,we'll be working on and finishing out module 5 soon. We'll let you know when it's available. In the meantime, if you need to deploy soon, I recommend you check out the Low Power library for Arduino and look at the examples. 

Hope that helps.

Akiba

 

Hi Akiba,

Yes, that does help. Nice to know we can expect 1-month using 3x AA 2100mAh batteries.

I had a quick look at the arduino.cc site for power management - it's all there, but looking forward to your advice/videos.

I'll move onto adapting our code for the DS18B20 temp sensor and Dissolved oxygen sensor [will soon post another thread for that]. No urgent rush to deploy yet, until code for these sensors is running ok.

Best Regards,

Nigel

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discussion

Possible command line uses

Hi !, I am already in the testing phase of my light data logger and I am trying to use the cmd utility to modify a parameter of the light sensor in real time. Specifically, it...

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Hi Akiba
Very useful the indications you gave me, now the double values that I introduce are shown in the same way.
Likewise, the main problem I had is that the value that I entered in setALSinterruptThreshold, did not match the value that I obtained in getALSinterruptThreshold. Luckily the relationship between these two quantities corresponds to a linear function, and I have been able to solve it by applying a correction factor
The problem I have now is that the modifications that I make with cmd, once I disconnect the serial monitor, are not kept in the program, and it returns to the initial configuration by default
For this reason, my question now is, is there any way that these modifications are permanently maintained in the program, or are they only useful for testing in real time?
Greetings,

Ha ha ha. That's for the next series which will be the intermediate course. It includes writing metadata and configuration settings to the EEPROM. But if you want to move ahead on your own, try checking the Arduino EEPROM library and look at the examples. That's how you create your configuration settings as well as metadata.

Akiba

Okay Akiba, I leave it in the drawer of pending things, if I have some time I would like to try it. Count on me for the next course!
Greetings !

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discussion

Battery status monitoring no longer working

Hi, Just loaded and run the Module 4-1 code and found that the battery status monitoring is not working as expected.  When I loaded and (first) ran the Module 3.3 code the...

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Hi Phil.

I checked and there's no problem with your code. It looks like it's a hardware issue. I'll be sending out a replacement board to you. Can you confirm your address via DM, just so that I can make sure I don't send it to the wrong place?

Thanks

Akiba

Hi Phil.

A replacement board was just sent out to you. Thanks for your help with the pictures and the patience :)

Akiba

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discussion

Mid Course Check-In

Hey Everyone, We're halfway through the course, whoop!  Congratulations on making it this far.  We've covered a lot, and though the...

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Hi Egil. 
I think we're seeing the benefits of dropping the whole series binge watch style versus trickling them out on a schedule. I think we all learned a lot on how to manage a workshop series like this. Ha ha ha. Future ones will be more compact and released as a set. That said, this first one is important because it sets the foundation of concepts that future series will build on. Almost all conservation technology revolves around data collection in some form so the data logger concepts will keep on popping up in more sophisticated devices as well, but with fancier bells and whistles :)

 Akiba

I think this whole series is a very valuable tool and will open up a vast amount of possibilities for people to collect data for their projects, so useful to have such a workshop here all in one place.

Thanks! We think it will be useful, especially if it can serve as a building block for courses with more sophisticated devices. I think it will be really interesting to see where this goes and what comes kinds of devices and projects come out of it.

Akiba

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discussion

Module 4: Tying It All Together

Hi everyone,  Module 4 is now available! Please use this...

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Hi JAL. 

Oh, it looks great! I like the enclosure, too. I think you have more than enoug juice to power the device for a year. Ha ha ha. Although it's still upcoming, the low power mode will mean the total current draw of the Wildlogger with an SD card and DHT11 would be around 0.6mA if I'm not mistaken. 

Thanks for starting this thread. I'm also interested in how other people will use the Wildlogger. When this is over, we'll have other short articles or videos on different applications you can do with it. 

Good luck with the cave logging! Please keep us updated on how it goes :)

Akiba

Yes, the power bank looks like a nuclear power plant for such a small consumption! ;-), but the reason for this mount is that I plan to use it on other devices. I like to use standard 18650 batteries, rechargeable, and that I can easily replace in case of failure. I also like its versatility to use different number of batteries, according to the needs

Thanks !

PD: I can't wait to put my device to sleep!

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Module 4: Tying It All Together

Akiba
Welcome to the fourth module of our Build Your Own Data Logger virtual course. In these videos, we'll tie everything we've learned so far together by creating our functional data logger application. 

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