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20 Aug 2017
INDI development team is happy to announce the release of INDI Library v1.5.0. This new exciting release builds on the maturity of INDI Library and comes with many new supported devices and fixes for existing drivers.
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TOPIC: Building the induino MeteoStation with 3d printed housing

Building the induino MeteoStation with 3d printed housing 2 months 3 weeks ago #17058

Great work! This is going to make a great HOWTO for an INDI website article! We didn't have one in a while, so hopefully once all of this is done, you can summarize all the steps for those who want to follow in your footsteps!

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Building the induino MeteoStation with 3d printed housing 2 months 3 weeks ago #17069

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Yes. I can absolutely do a writeup when its done.

I wil have to wait for the sensors to arrive first. (10 - 35 days from China). Just in case I have to change anything to make the sensors work.
I wil post the printed body in about 4 hours. I have printed the bottom and middle, and the top is 50% done.
I wisited my 3d printing store and got a 10meter sample of TPU that I will try to print the newly designed gaskets in.
Hopefully it will work, but TPU is listed as 'Expert' in the dificulty level, so no guaranties :)

Heres the drawings of the gaskets for now.
Not a hwole lot to look at, but I made the area a little smaller than the slots they go into, and made them one layerline taller so they will get squshed and water proof when everything is screwed together (hopefully).

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Building the induino MeteoStation with 3d printed housing 2 months 3 weeks ago #17071

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Print done! From Idea to working part in two evenings :)

I took some assembly pictures for pending howto. Just have to get the electronics.
The small gasket was also one mm to thick, so will fix that.








I got some 2mm acrylic glass, so I'll try cutting that tomorrow.

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Building the induino MeteoStation with 3d printed housing 2 months 3 weeks ago #17073

That's 3D printed? wow, it looks so neat.

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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17085

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Yup :)

3d printin can be wery neat if the limitations have been considured when designing the part.

This print is actually printed at 0,3mm layer height, witch is about the lowest 'resolution' recomended for a printer with a 0,4mm nozzle.

It could be even smoother at 0,1 mm layers, but would take much longer to print.

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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17159

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So now the glass is cut and drilled, and a new 'frame' to screw on the glass with even pressure.

I printed the top gasket in PLA (hard material) to use as a cutting / drilling template, so getting the holes right was easy.
I have also sourced a solar cell from a led light that I was not using. I'll have to check it at midday when it's not clouded to see that it does not generate to hig current. It registered 1.5v under a bright light, so I'm thinking it will be ok.

Pictures of the complete box. Whit the new 'frame' on top it's now 10^3cm





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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17181

That really look cool. When are you expecting to finish it?
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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17182

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Thanks :)

It all depends on shipping times.

I ordered all the sensors from ebay, and they all had 10 - 35 days shipping.
I have been supprized sometimes when ordering things from China and got the items closer to the 10th than the 30th day.

I will order the arduino and the wifi module, so I can set everything up and be ready to install sensors.

Btw. Does the indi driver for indoino meteostation connect to the arduino ower the network, or does it need to be connected in some other way?
I also tested the solar cell in cloud free daylight ~17:00 pointed at the sun. It was producing around 2.5v, so I think I can connect it directly to the arduino without any resistor to split the voltage.

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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17189

The arduino was connected to the Pi USB port.

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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17198

A very professional job!
If you are happy to share your STL files for the £D printer design, i'm very temped to have a go myself. :)

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Building the induino MeteoStation with 3d printed housing 2 months 2 weeks ago #17201

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RobJones wrote: A very professional job!
If you are happy to share your STL files for the £D printer design, i'm very temped to have a go myself. :)


Thanks, I've uploaded it to my profile on thingiverse www.thingiverse.com/thing:2371144
Feel free to comment if you have any issues printing it.

I also edited it slightly since the last post. A hole big enough for a micro usb cable is now added. (I think I'll just drill one in mine as it's allready printed, but it should be a nice addition :) )
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Building the induino MeteoStation with 3d printed housing 1 month 2 weeks ago #17644

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So now I have nearly everything I need, and I'm making some progress.

Final shopping list:
  1. 2mm tich acryllic glass www.clasohlson.com/no/Akrylplast/Pr341360000
  2. Roll of PETG printer filament
  3. Adafruit pro trinket www.kjell.com/no/produkter/elektro-og-ve...tviklingskort-p87968
  4. Serial to USB www.kjell.com/no/produkter/elektro-og-ve...b-til-seriell-p87898
  5. Solar cell lamp www.clasohlson.com/no/Solcellelampe-3-pack/36-6488-2
  6. BMP 180 Barometric Pressure sensor ebay id : 201414876396
  7. DHT22 AM2303 Temp / Humidity sensor ebay id: 171907229178
  8. MLX90614ESF-BAA IR temp sensor ebay id: 191869849584

I have to get the Usb to serial adapter tomorrow, but the rest is in house.
Compiling and uploading the firmware to the Arduino was a breeze. I did not initially realize that all the code for the induino was in the INDI driver and all the arduino does is allowing a host computer to control the IO with the firmata protocol.

The Adafruit pro trinket does not support serial commands over the usb port, so that's why I need the dongle.

Last thing that is puzzling me is that the same pin is used for the output from both the BMP085 (185) and the IR sensor? Is this correct or just to show that both should be connected to analogue input on the arduino?

See blue and purple wires on this schematics


I feel my electronics skills is lacking a bit here. It's not like the output from one goes into the other and is altered, and the outputs are in paralell, so not like they will combine, and output higher amplitude. Looks like the sensor with the strongest output will be the resulting analogue signal?

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Proud owner of Observatory 17b - A remote Linux observatory.
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Build thread @ SGL: Starting summers observatory project
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