author
21Instructables698,353Views453CommentsWhitehorse, YT, CanadaJoined November 13th, 2014
Most of the things I build usually relate to either astronomy, physics or woodworking in general.

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Space Contest 2016
Contest Winner First Prize in the Space Contest 2016
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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera17 days ago
    Wireless All Sky Camera

    You're absolutely right. Thanks for catching that. I'll prepare a fix for it.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera24 days ago
    Wireless All Sky Camera

    What power supply are you using now? If you can'y boot with the camera attached, I don't think the problem is related to the software. Is it rated for 2.5 amps?

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera27 days ago
    Wireless All Sky Camera

    Hi, Can you provide more details? What power supply do you use? The recommended power supply is 5V at 2.5Amp.

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  • ThomasJ1 commented on ThomasJ1's instructable Grow Your Own Giant Sequoia Tree4 weeks ago
    Grow Your Own Giant Sequoia Tree

    Hi Andrew, thanks for your story about your experience with the germination. Regarding stem rot, I would definitely try to spray to antifungal in the soil. I've have some seedling that seemed to have died over night without any reason in the past. I blame this on stem rot.The fact that you've gathered the seeds in the wild probably increases the risk to carry fungi in your soil. What I've learned over the years is to pick up the green cones on the ground instead of the dried ones. Once in your house, the cones will open and release a lot of clean seeds. I've have better success with these.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera4 weeks ago
    Wireless All Sky Camera

    Hi Christian, I would love to have an answer for you but I live in the North and we don't get very hot days up here. Do you have a heat sink installed on the RPi cpu? I know the Pi3 will throttle down or shut down if temperature gets too high (around 90C I think).

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera7 weeks ago
    Wireless All Sky Camera

    Hi,Nice improvements over the original design! I like the ideas of using relays and a cover for the dome.Regarding the blurry images, I'm sure you've set the focus properly on the lens already but I noticed that if you don't tighten the little screw on the lens, le focus tends to shift at night because of the temperature difference.I will look at you FTP issues on github.Thomas

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  • ThomasJ1 commented on ThomasJ1's instructable Simple Vault Mechanism7 weeks ago
    Simple Vault Mechanism

    Wow, that carving is quite a piece of art!! So much works involved.. I like your variation, it looks really good.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera8 weeks ago
    Wireless All Sky Camera

    Hi, did you find any useful debugging information in the logs? What version of Raspbian are you using?

    That's a really nice setup Michael. Thanks for the details.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera2 months ago
    Wireless All Sky Camera

    Thank you for the nice review!

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera3 months ago
    Wireless All Sky Camera

    I love all the additions Paul. Believe it or not, I still haven't find enough time to merge your darks library feature to the allsky code but I will do it when things slow down on my side. I will put some toggle switches on the GUI to control the GPIO pins as well I think,The real time clock is something I should really try to bring it on road trips as well.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera3 months ago
    Wireless All Sky Camera

    Thanks for the feedback Dave, that's really helpful.

    Hi David, Looks like a memory allocation issue. This happens with cameras that have a very large sensor. The Raspberry Pi is a small computer and it doesn't have the capacities to allocate more memory to the avconv process.There are a few ways to fix it, you can run the image magick's mogrify command to shrink all your images before running the timelapse or you can set bin 2 in the camera settings.For images already taken, try the mogrify function from the images directory. ex:mogrify -resize 50% *.jpgFor future images, just set the binning mode to 2. Owners of this model have reported it to fix the problem.Thomas

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera3 months ago
    Wireless All Sky Camera

    Hey Ron, does it do that for every night? The error message doesn't give much info but you could try running it manually on a smaller set of images. Maybe there is a corrupted image in the set.

    I would start with image size. You can also use image magick's identify function to get more info https://imagemagick.org/script/identify.php

    Hi David,Can you try generating it by hand?./scripts/timelapse.sh 20190226 for exampleThis should give you a bit of feedback in the terminal. What camera do you use?Thomas

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera3 months ago
    Wireless All Sky Camera

    Also, did you modifiy the settings through the GUI or by editing settings.json manually? The one that needs editing is at /var/www/html/settings.json

    Do you see the same behaviour with the default settings?

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera3 months ago
    Wireless All Sky Camera

    Can you try setting the exposure to something different such as 1000?

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera4 months ago
    Wireless All Sky Camera

    Can you send your settings.json file and config.sh?

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera4 months ago
    Wireless All Sky Camera

    Hey Ron, you'll need to replace line 106 in capture.cpp bysystem("scripts/saveImageNight.sh " + your_temperature_variable + "&");Then in saveImageNight.sh, you can retrieve the temperature by calling $1 such as:TEMP = $1I haven't tried it but that's how you pass variables to sell scripts.

    That's a really clean build Nicholas!

    You should be able to get around it by moving long ltemp = 0; (line 420) to the beginning of the file where the other global variables are such as dayOrNight. This will make it global and you should be able to access it from anywhere.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera4 months ago
    Wireless All Sky Camera

    Sorry Peter, I'm just seeing this message. The ASI 120MM and 120MC are USB2.0 and these 2 models are known to produce this kind of result on linux. There is a thread on their forum about patching the kernel but I never tried it because I don't own this camera.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera5 months ago
    Wireless All Sky Camera

    That's a really sweet build! I like the small form factor of the enclosure. That's also a great roll off roof observatory!Thanks for the GoDaddy tip, I'll probably add the no-ssl option by default.I'll give the image-web.jpg a try on my end. It seems like a good option.

    Although I don't own this camera, it should work without modification as the software is using the ZWO library (which is designed to work with all of their cameras).

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera5 months ago
    Wireless All Sky Camera

    Technically, this is possible. You would need 4 allsky cameras probably synced together. Then a computer would stitch the 4 images using a registration and stitching process (something like Hugin maybe). However, that would be quite expensive and technical.Instead, I would recommend using a camera with a higher resolution such as the ASI183MC (20Mpx) and a fisheye lens that covers the whole 1" sensor.

    The project uses ZWO libraries so it is not (yet?) compatible with other brands. If you want a full sky view, you may have to go with a 1/2" sensor in order to capture the full circle. Mono is probably not the best solution since you'll need to deal with a filter wheel, aditional power consumption and risk of mechanical issues.An ASI224MC or ASI120MC-S will do just fine. If you want to capture at least what the eyes see, you should be able to do it under 15 seconds. You can play with the gain to increase/decrease sensitivity (and noise at the same time).I know one user who is using a 40W solar panel and a 16Ah lead battery for this project.

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  • ThomasJ1 commented on ThomasJ1's instructable Grow Your Own Giant Sequoia Tree5 months ago
    Grow Your Own Giant Sequoia Tree

    If the first leaves are dried and the second set of leaves hasn't shown up, it's usually a bad sign. It is probably not going to make it :(

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera5 months ago
    Wireless All Sky Camera

    I think the recommended output is 2.5A for the RPi3. I've heard people having issues with underpowered devices.

    It seems like a cable or power issue. What kind of USB cable and power supply do you have? Try a new USB cable. Doesn't need to be USB3 as the RPi is only USB2 anyways.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera5 months ago
    Wireless All Sky Camera

    That's pretty strange. Try starting the service and look at the logs:tail /var/log/allsky.log

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera5 months ago
    Wireless All Sky Camera

    Hi Emmanuel, the Raspberry Pi is independent from your laptop and it shouldn't make a difference if it goes to sleep. You can stop the capture:sudo service allsky stopand then start the program manually:./allsky.shIt will display the output of the program on the terminal. If something happens you'll get notified here.

    Hi Dave,Sorry, I didn't see your question earlier. You can delete the 0 byte size images by doing this:find "images/$1" -name "*.$EXTENSION" -size 0 -deleteThat's what I do in v0.6. It's line 25 in https://github.com/thomasjacquin/allsky/blob/master/scripts/timelapse.sh

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  • ThomasJ1 commented on ThomasJ1's instructable Grow Your Own Giant Sequoia Tree6 months ago
    Grow Your Own Giant Sequoia Tree

    Are you using small or large pots? Did you spray fungicide into the soil? How big are your plants? The trickiest time is before they start having leaves in the middle, they are sensitive to water levels and fungi.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera6 months ago
    Wireless All Sky Camera

    That's right. If you haven't made any changes to capture.cpp, it will warn you that there's nothing to compile. You can do:rm capturefollowed by:make captureto force a new compilation

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  • ThomasJ1 commented on ThomasJ1's instructable Minimalist Chess Set6 months ago
    Minimalist Chess Set

    Well Done! I'm really glad to see that this instructable was useful to you. I like the variation with the fabric and lace. It turned out great.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera6 months ago
    Wireless All Sky Camera

    So maybe it's because pcmanfm runs only with a desktop environment. The service doesn't use any graphical env by default so you can try replacing pcmanfm --set-wallpaper /home/pi/allsky/image-resize.jpgbyDISPLAY=:0 pcmanfm --set-wallpaper /home/pi/allsky/image-resize.jpgThat will force the service to use your display.I'll test it tonight but you can try on your side in the mean time, it may do the trick.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera6 months ago
    Wireless All Sky Camera

    Can you show me how you added it in the script?

    Hi Romain,The user running the service is Pi so it should work the same way. The config for the service is here: https://github.com/thomasjacquin/allsky/blob/maste...I am sure it is a permission issue . You're using sudo in saveImageDay.sh and saveImageNight.sh. That means you have to provide some password at one point and then it's keeping your credentials for a while.When you run with the service, I guess it doesn't have the permissions because you haven't provided the root password yet.Do you need to run this with sudo?If you really need to run as root, you can add pcmanfm to the sudoers file. That way it won't prompt you for a password. https://unix.stackexchange.com/questions/18830/how...Hope that helps

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera6 months ago
    Wireless All Sky Camera

    Yes it only takes darks at night (to match temperature). I should make this more obvious in the README or enable darks during daytime.

    Looking good !! almost there.

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  • ThomasJ1 followed gravitino6 months ago
      • Cosmos Mariner: a Large Aperture Dobsonian Telescope
      • Sonification of Gravitational Waves With Lego Mindstorms EV3
      • A Tiny Telescope Observatory
  • Cosmos Mariner: a Large Aperture Dobsonian Telescope

    I already enjoyed reading your tiny observatory instructable last month and this is another very well written post. As a fellow telescope maker, I can really appreciate all the details you put in the construction. Thanks for sharing. voted for you!

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera6 months ago
    Wireless All Sky Camera

    Hi Dave, you're right, I have also experienced a similar thing on mine when the wifi connection drops (snow, cars parked in the way, etc). I will look into a graceful way to handle it. Perhaps trying less frequently as time goes by like gmail reconnection process.

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  • ThomasJ1 commented on ThomasJ1's instructable Grow Your Own Giant Sequoia Tree7 months ago
    Grow Your Own Giant Sequoia Tree

    When the top of the soil looks dry, add more water.

    The soil on the photo looks a bit too wet. Make sure you let the soil dry a little bit before adding more water.

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels7 months ago
    Energy Efficient Tiny House on Wheels

    About $45k CAD for the fully furnished house. Roughly 10k for the trailer, 25k building materials and 10k appliances.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera7 months ago
  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera8 months ago
    Wireless All Sky Camera

    I personally don't but some users who live in high humidity areas do. You can solder a few resistors together to get a little bit of heat inside the dome and stay above dew point.

    The Pi 3 generates enough heat to keep the dew off the dome in my case but my climate is fairly dry. It depends where you live I think and how weathertight your case is.

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    The flashing under the trailer is galvanized steel. There is no undercoat on it.

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  • ThomasJ1's entry Energy Efficient Tiny House on Wheels is a winner in the Tiny Home Contest contest 8 months ago
  • ThomasJ1's entry Energy Efficient Tiny House on Wheels is a finalist in the Tiny Home Contest contest 8 months ago
  • ThomasJ1 commented on ThomasJ1's instructable Grow Your Own Giant Sequoia Tree8 months ago
    Grow Your Own Giant Sequoia Tree

    Hi Shannon, congrats on your seedlings, that's exciting!My guess is that being in the southern hemisphere, the length of day wasn't enough for the seedlings to enter the next stage of growth. This species relies a lot on available light. Increasing the lighting period (artificially or by waiting for longer days) would probably help trigger the new leaves. As long as the stems are strong, they shouldn't die. If cotyledons and the stem become soft, that's a generally a sign of root rot (too much water)At that early stage, the soil mixture is not critical but it's good to have a well drained substrate. Regular potting mix + fungicide works well.In the wild, a lot of seedlings germinate in what's left after forest fires (ash + soil) so it's also a good idea to incorporate some ash in the mi...

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    Hi Shannon, congrats on your seedlings, that's exciting!My guess is that being in the southern hemisphere, the length of day wasn't enough for the seedlings to enter the next stage of growth. This species relies a lot on available light. Increasing the lighting period (artificially or by waiting for longer days) would probably help trigger the new leaves. As long as the stems are strong, they shouldn't die. If cotyledons and the stem become soft, that's a generally a sign of root rot (too much water)At that early stage, the soil mixture is not critical but it's good to have a well drained substrate. Regular potting mix + fungicide works well.In the wild, a lot of seedlings germinate in what's left after forest fires (ash + soil) so it's also a good idea to incorporate some ash in the mix as a source of minerals. Not too much because it tends to make the soil more compact.

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    Thanks a lot. It's really nice to receive such a comment from a home builder. We did some research before building but it's always comforting to get a confirmation of our decisions by a professional.

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  • ThomasJ1's instructable Energy Efficient Tiny House on Wheels's weekly stats: 8 months ago
    • Energy Efficient Tiny House on Wheels
      18,281 views
      231 favorites
      33 comments
  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    Yes we have considered it and we still want to install solar panels in the future. That's why we decided to go with LEDs, a 12V water pump and 12V composting toilet. For now we have access to the grid and the propane range is not functional yet so we rely on electricity for the oven. However once the propane line is installed, the only electricity we'll need will be for small appliances. Ideally, we would have a solution similar to Tesla's Powerwall with enough power to go through the whole day.

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    I am glad you liked it. Thanks for the vote :)

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    Thank you Jessy, I'm sure it would also make a lovely embroidery studio! ;)

    Thank you for your vote and for reading it all!

    Thanks!

    Thank you :)

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels8 months ago
    Energy Efficient Tiny House on Wheels

    Thanks! The reason we went with 12V for the pump is to be less dependent on the grid (we also chose the 12V version for the toilet). In the future, we would like to have solar panels and batteries to cover most of our electrical consumption (at least in the summer). Also, in the Yukon, we regularly have an unfortunate creature that makes its way into a transformer and cuts the power for the whole territory so we can't always rely on it.For the trailer flashing, you're right, it would need some sealing at one point. During the construction, we had a lot of rain and I had to wait for the EPS to completely dry so I didn't seal the metal sheets together.

    Thank you. It is actually fairly common for tiny houses on wheels to be built like that. Some use metal trusses to save on weight. For the north, it's not really recommended as it creates a thermal bridge and lets your heat escape more easily.In our case, we only intend to move it once (about 30km) because we didn't own any property at the time be built it. The choice was to build on skids and have a crane pick up the house or build on a trailer.As for plumbing, it uses PEX tubing so it's quite flexible.But I agree that if you own the land, it doesn't really make sense to build your house on a trailer.

    Yes we did! But after doing a bit more research, we realised that wood is a much better insulator that metal and when you have a stud every 2 feet, that's a lot of thermal bridges that let your heat escape.If we didn't live in a place here it goes as low as -40C, we would have probably chosen metal studs.

    Hi Jerry, those are all good questions.To be honest with you, I am not sure how much the house weighs yet. I'll have to drive it to the weigh scale. My estimation is that we're probably close to the trailer maximum of 14,400 lbs, but that's because we went with 10.5 ft width instead of the traditional 8.5 ft.The trailer tongue has a utility storage on it. This is the future location of the propane bottles.For our house, you need a wide load licence but if it was 8.5 ft wide, you wouldn't need it. We haven't moved it yet because we don't own a large pick up truck but we'll move it next spring.

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  • ThomasJ1 commented on Nickolae's instructable 3D Printed Nautilus HiFi Speakers9 months ago
    3D Printed Nautilus HiFi Speakers

    Really nice project. I like the stone spray finish + the wooden parts. They make a great contrast.

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  • ThomasJ1 commented on ThomasJ1's instructable Energy Efficient Tiny House on Wheels9 months ago
    Energy Efficient Tiny House on Wheels

    Thank you !

    Thanks a lot, I'm happy if it helps anyone get more motivation and ideas!

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    One user reported using it successfully with 40W solar panels and a 16Ah battery. He said the Pi3 + camera was using 2W of power (5V at 0.4 amp). In theory a 26.8 Ah battery could last 67 hours (almost 3 days) but you have to take in account tasks that take more CPU power (image processing, timelapse, upload) and outside temperature. The cold could cut the battery capacity in half easily. (That's still enough to last the whole night).Please update us if you set up a battery operated system with success!

    Yes I do. In my prototype, I just tied the copper wires through the holes of the adapter prongs and applied heat shrink on it. It's been working fine.In more recent iterations of the project, once the main power cable is passed through the threaded ABS cap, I add a female plug. That way, I can connect and disconnect the adapter easily if needs be.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    Hi Juan, not yet, I did focus on daytime and auto-exposure in v0.6.Meteor detection will require some more intense computing power from the Pi so I will need to think a bit more about how to optimize the analysis prior to implementation.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    Hey Ron, Sorry for the delay, I was in Alaska for the week end. I will check what's wrong with "delay" in fixed exposure mode. By the way, I have updated the Readme file recently. I have included a table to explain the settings.I'll keep you updated about that delay issue.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    For some reason, ZWO's library uses microseconds for exposure and milliseconds for maxexposure so 5000000 is actually correct (5sec). I just decided to make abstraction of the difference and present the user with only one unit: ms.Regarding the delay, I will take a look, I have been running with autoexposure enabled lately so I may have missed a bug with the time between exposures. I will try your settings for next night.Based on your feedback it sounds like the delay is not applied. I will add some logging there. Thanks

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    This sounds to me like a hosting issue. 550 error is coming from the connection established with lftp. It is saying that it couldn't find the "/allsky" location on your host server. Did you change anything on your host? Folder permissions?It can also be a mis-configuration in scripts/ftp-settings.sh

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    ASI cameras are quite sensitive in the IR wavelength (see graph response here https://astronomy-imaging-camera.com/product/asi224mc). You could put an IR pass filter to block visible light and you would end up with an IR only camera.

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  • ThomasJ1 commented on ThomasJ1's instructable A Greenhouse for the North9 months ago
    A Greenhouse for the North

    Hi Melissa,Yes, I'm sure we can figure something out. A photo would help a lot in order to figure out the best design for it.

    If screws and nails are not an option, here's what I would do:- Make a rectangle out of 2x2 or 2x4s (same size as the left side, about 98x40)- Make another one for the right side- Make one for the middle- Put some 6mil plastic on the outside of each frames. Use staples.- Attach the panels to the deck with zip ties (sides, bottom and top)- Attache the panels together with zip ties.- tape the seams.Zip ties should resist during the winter.

    Plastic film would resist the wind but it doesn't have any thermal insulation. It traps the heat by day but all the heat will radiate through it during the night and the temperature outside and inside will be pretty much the same in the morning.To trap the heat, you need at least a double layer of plastic or some hollow poly-carbonate sheets. The door can be made of the same material with some overhang to avoid snow and ice accumulation.Tent material is wind resistant but has no thermal properties and it's not really transparent.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    Hi Romain,Exposure and Gain have been added to the overlay. You can toggle this info on and off on the camera settings page.I have also added an "angle" option that let's you specify the altitude of the sun relative to the horizon. By default it is set to -6 degrees (civil twilight). -12 is nautical twilight and -18 is astronomical twilight.If you want sunset, use 0. If you want to capture the sun before it goes under the horizon, use a positive number.Thomas

    This is now available.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    I have only updated the README and default settings for now, but I'll try to include the exposure and gain overlay shortly.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    Hi Romain,Congrats on your build, I'm happy that it installed properly on the first try.Good catch regarding the "gain" setting, I'll remove the second one.I am currently editing the README file to explain how all the settings work and to clarify the exposure and gain settings. Basically, by day, it's always using auto-exposure and gain 0; and at night, it uses whatever settings you selected. So the auto-exposure and auto-gain settings are only relevant for night time images.I will add an overlay for exposure and gain below the sensor temperature. That should help with debugging.Another thing to note is that auto exposure works by analyzing the amount of light in the current frame and reducing/increasing exposure for the next frame. It can take a few images until it gets the p...

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    Hi Romain,Congrats on your build, I'm happy that it installed properly on the first try.Good catch regarding the "gain" setting, I'll remove the second one.I am currently editing the README file to explain how all the settings work and to clarify the exposure and gain settings. Basically, by day, it's always using auto-exposure and gain 0; and at night, it uses whatever settings you selected. So the auto-exposure and auto-gain settings are only relevant for night time images.I will add an overlay for exposure and gain below the sensor temperature. That should help with debugging.Another thing to note is that auto exposure works by analyzing the amount of light in the current frame and reducing/increasing exposure for the next frame. It can take a few images until it gets the proper exposure.I will also try to add an option for sunwait so that you can start recording earlier. The sunset shouldn't be over-exposed as long as you're using auto-exposure (unless gain is set really high).I'll try to get these updates tonight or at least before the weekend and yes, I'll add you to the map.ThomasPS: Nice roll-off roof observatory.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    Yep, I could do that as well.In the meantime, if you really need the auto exposure value, it should show up in log.txt in microseconds. It's not super user friendly but it's there.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera9 months ago
    Wireless All Sky Camera

    For full moon nights, I would set the gain to a low value (0) and a relatively short exposure (under 5 sec). It also depends on your lenses's focal ratio. You can also turn auto-exposure on. In that case, it will properly expose images throughout the night.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera10 months ago
    Wireless All Sky Camera

    It's been outside since January 2016 and I haven't noticed any issues with it yet. I believe that the acrylic dome and the lens filter most of the hight energy UV out.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera10 months ago
    Wireless All Sky Camera

    You can use a RPI camera module but it won't be as sensitive as an astronomy camera. Also, the code is written to use ZWO cameras. If you want to use a n RPi camera module, you can use raspistill or avconv to make a timelapse:https://www.raspberrypi.org/documentation/usage/camera/raspicam/timelapse.md

    You can use a fan to distribute the heat inside the enclosure for sure. Also, you can probably paint the tube white or with reflective paint.Another possibility would be to attach a piece of aluminium to the back of the camera and have a heatsink the extends outside the enclosure (with silicone around.)TEC cooling would work well but it would require quite a few amps and you'd have to provide a separate power cable (can't use the power from the 2.5A adapter unlike the fan which would only use a few mA).Regarding hot pixels, you can use the dark frame subtraction feature which works quite well at constant temperatures. I will add a temperature dependant dark frame feature in a future version of the software.

    The IR letters on the lens mean Infra Red, you're right. But it doesn't mean Infra Red filter. I actually means Infra Red Corrected. When light is refracted through glass, different wave lengths are bent at a different angle which means red and blue are not focusing at the same spot. This is called chromatic aberration. Most good quality lenses take care of that problem. For CCTV lenses, since they can be used at night , they need that correction to be applied to the IR wave lengths range as well. Basically, this is to avoid having to re-adjust the focus when using the IR mode of the CCTV camera.

    You may not need to flash your camera. Try it first and if you end up with segmented images, you can try upgrading to the latest firmware (segmented images issue should be fixed by now). Yes the link is in the developers tab: https://astronomy-imaging-camera.com/software/FWTo...I'm not sure what you mean by IR.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera10 months ago
    Wireless All Sky Camera

    Hi Emmanuel, I've had reports of such behaviour before. Most of the time it was when people are using remote desktop to connect to the Pi. What happens is that when the new session opens, it kicks up another instance of the software.The easiest for you would be to upgrade to the latest version (v0.6). I have changed the way things work and it's more robust and you don't have to restart the Pi for each settings changes.

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  • ThomasJ1 commented on ThomasJ1's instructable Wireless All Sky Camera10 months ago
    Wireless All Sky Camera

    Hi, with the default settings, the camera only takes pictures at night (based on your latitude and longitude) but you can change that by setting DAYTIME=1 in config.shLet me know if that doesn't help and we can review your settings.

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