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  • MaykeS1 commented on diycreators's instructable How to Build a PHOTO LIGHT BOX3 days ago
    How to Build a PHOTO LIGHT BOX

    Nice one. Congrats.

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  • MaykeS1 commented on macgyver603's instructable How to Build a High-Powered Rocket22 days ago
    How to Build a High-Powered Rocket

    Holy Moly! It Rocks this project!!!

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera2 months ago
    A Raspberry Pi Multispectral Camera

    Filters can be acquired from Andover Corporation (https://www.andovercorp.com/products/bandpass-filt...). Cameras need to be PiNoir from Raspberry Pi.Cheers

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera3 months ago
    A Raspberry Pi Multispectral Camera

    Drop me an email at maykef at gmail dot com

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera3 months ago
    A Raspberry Pi Multispectral Camera

    The reality is, these things are complicated. The problem with RGB sensors is that they let you play with images but, as you progress and need to do more complicated analyses, you'll realise you need a sensor that is capable of picking up the right wavelength. Read this post for example: https://publiclab.org/notes/khufkens/11-02-2015/ov5647-raspberry-pi-camera-spectral-response-quantum-efficiency/ Now, I'm a bit intrigued. If you own the DJIs cameras and a Parrot Sequoia, they should be more than enough for NDVIs. What is exactly that you want to do? What do you mean by the Parrot Sequoia failing?

    Hi Jose, It depends on what issue you refer to. Camera sync? That's not difficult if you can design your electronics from scratch. But that costs money. The cameras I've seen have FPGAs for each of them, so obviously you are holdingthe info there while channeling through your BUS to the sim card. But they do much more than just that. As I said above, RGBs are not suitable for multispectral imaging; and most modifications I've seen are just for amateur projects. If you are serious about multispectral imaging you need to have all your bands separated, calibrated and aligned.Good luck with your peoject!

    The radiance sensor is not fully usable with those cameras, the only function that really does is to add some more information to the metadata of the images. I think you should play with the camera without connecting it to the radiance sensor. You can use a lambertian surface to calibrate the camera. It will work better than the sensor, and it's recommended by Micasense. You don't really need an RGB mosaic in most cases. In fact, you can create a real color image with the Sequoia, mixing the four bands. It may not look as nice and sharp as the RGB mosaic of the Zenmuse Z3 (I don't know which camera you own).This is my platform BTW.

    Hi @Kankamuso, a) You can definitely focus it at infinite.b) Yes, I did experience blurring. It's not suitable for taking pictures while the drone is moving. You could potentially stop over your AOI and take some photographs. The more serious problem is that the cameras would not trigger at the same time; there is a lag between of around 8 miliseconds, which is disastrous if you are moving too fast.c) FOV should not be a problem, at least if you are flying over 50m. You don't need to crop the images, but you'll have to align them either using a commercial software like Arcmap, or following few tutorials to use Opencv with C or Python for that purpose. Either way, you should get good results. You'll also have to take in consideration things like vignette effect, row gradient and irradian...

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    Hi @Kankamuso, a) You can definitely focus it at infinite.b) Yes, I did experience blurring. It's not suitable for taking pictures while the drone is moving. You could potentially stop over your AOI and take some photographs. The more serious problem is that the cameras would not trigger at the same time; there is a lag between of around 8 miliseconds, which is disastrous if you are moving too fast.c) FOV should not be a problem, at least if you are flying over 50m. You don't need to crop the images, but you'll have to align them either using a commercial software like Arcmap, or following few tutorials to use Opencv with C or Python for that purpose. Either way, you should get good results. You'll also have to take in consideration things like vignette effect, row gradient and irradiance calibration if you DO want to make something serious out of it. d) Remember that you get what you pay for, so do not get too excited about excellent results with this system. A commercial multispectral camera costs around $5K, at least 10 times more than this simple camera, but on the other hand, you get monochrome sensors, perfect sync, and technical assistance. I still believe that thus system should be enough to intro hobbyists into multispectral imaging, learn the basics, and then move on. I hope this helps.

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera1 year ago
    A Raspberry Pi Multispectral Camera

    I haven't followed up on new versions of the CM. As far as I remember, you can use both camera versions. There's a caveat though with the V2 cameras, but that's addressed in the tutorial, and I don't think it is a problem with recent versions of Raspbian.Does this answer your question?

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  • MaykeS1 commented on Matthews_Tips's instructable Connect RPI Zero W to Wifi1 year ago
    Connect RPI Zero W to Wifi

    As far as I know the Pi Zero does not have wifi connection. You should start by explaining how you solved that, then go onto explaining how to set up wpa_supplicant.

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera1 year ago
    A Raspberry Pi Multispectral Camera

    You need to follow the instructions here:https://github.com/andreafabrizi/Dropbox-Uploader

    Hi, The camera has just two lenses. The case I 3D printed had six holes, but that was for another system. Sorry for the confusion.

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  • MaykeS1 followed eyebot1171 year ago
      • DIY Cascade Night Vision Scope
      • DIY Infrared Night Vision Device
      • Corrugated Self-Portrait
  • MaykeS1 commented on anil8tor's instructable Solar Heater for My Shop1 year ago
    Solar Heater for My Shop

    Mind-blowing!This could be a very nice water desalinator in remote islands with no electricity supply!

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  • MaykeS1 commented on MaykeS1's instructable A Raspberry Pi Multispectral Camera1 year ago
    A Raspberry Pi Multispectral Camera

    You don't need a multispectral camera for indoors, do you?In any case is a extremely good setup for outdoors, you can leave the original raspicam lenses to have a wider angle of view.

    Definitely, you can actually use the following and add another capability to the camera.Have a look at this:https://groupgets.com/manufacturers/flir/products/flir-lepton

    Raspicam V2 8mp, 16mm M12 lenses, bandpass filter 840mn for NIR from andover corp.

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