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by Demonslayer
Thu Sep 15, 2016 7:12 am
Forum: General discussion
Topic: raspberry pi noir camera, ir frequencies.
Replies: 2
Views: 1154

Re: raspberry pi noir camera, ir frequencies.

Thank you, that was very helpful.
by Demonslayer
Wed Sep 14, 2016 9:29 pm
Forum: General discussion
Topic: raspberry pi noir camera, ir frequencies.
Replies: 2
Views: 1154

raspberry pi noir camera, ir frequencies.

Just wondering how the raspberry pi noir camera does at registering infrared light. I'm planning on using an ir laser for ranging, and have to decide which frequency to use in conjunction with a bandpass filter. Do all these register on the cam? 808, 850 and 980nm. Sorry if this is a stupid question...
by Demonslayer
Sun Sep 11, 2016 8:21 pm
Forum: General discussion
Topic: Triangulation-based 3d scanning.
Replies: 0
Views: 377

Triangulation-based 3d scanning.

I have been googling for days and can not find relevant information on this subject. Maybe someone here can help me. I am building a 3d scanning system based on triangulation of a laser diffraction pattern. My first question is: What diffraction pattern is best suited for such a system? I would like...
by Demonslayer
Wed Aug 24, 2016 10:31 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

As described in the link I posted 10Hz is the lowest I can go and still be sure the GPS will work. They use this method on missiles and shells. If you sync to video frame rate to the spin RPM could you look in any direction? That was my plan. I intend to messure the y-position of a split IR laser by...
by Demonslayer
Wed Aug 24, 2016 5:08 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

Adjusting the airfoil size is how I intend to optimize the design so I get a useable rpm. I used an electric drill to check how well it coped with the rotation, about 700rpm was fine with my first prototype body and wings. A rotating body like this is just as easy to balance as a prop if you have de...
by Demonslayer
Wed Aug 24, 2016 4:33 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

The sprite is a nice design, but for my intended use it is better that the whole body rotates. Video is not required for flying this beyond line of sight since I will be using laser topography to create a 3d representation of the surroundings. On the subject of flight controllers: Can I hook any fli...
by Demonslayer
Wed Aug 24, 2016 4:19 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

Gavinmc42 wrote:
Ok, coat pocket? big coat?
It is the size of a wine bottle. From research I have read, it must have a rotation of at least 600rpm to use gps, which also is within the limits of my flight control surfaces (servos are a bit slow, but will work).
by Demonslayer
Wed Aug 24, 2016 4:14 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

The idea is probably not new, the design and arrangement of components is.

If you put motors on this, it would be a simple model of my design.
https://en.m.wikipedia.org/wiki/Bamboo-copter
by Demonslayer
Wed Aug 24, 2016 3:18 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

I found an answer. In case anyone needs it, the link is below.
Single antenna GPS measurement of roll rate and roll angle of spinning platform

http://www.google.com/patents/US20130169477
by Demonslayer
Mon Aug 22, 2016 1:56 pm
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

Not the same as that canadian drone. The motors and propellers create spin, not lift. The lift is created by fixed wings on the spinning drone body.
A lot has happened since the 70's. This drone fits in your coat pocket.
by Demonslayer
Sun Aug 21, 2016 10:18 pm
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

No problem is to big. Just tell me how. What do I need.
by Demonslayer
Sun Aug 21, 2016 3:35 pm
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

500g spinning at 700 rpm should be quite stable if correctly balanced. It has the stability of a gyroscope. If Pi is told what to do with the sensor signals, that should work.
by Demonslayer
Sun Aug 21, 2016 3:04 pm
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Re: Pi with flyduino flight controller?

I tried out the PFX mini in my design, but it is a bit too big. The Afromini amaze can be soldered to a Pi zero hat making a stack only 13.5mm tall, 65x31mm. I also have to solder the usb's to the hat to turn my usb sockets 90 degrees. Servo, motors and sensors connect to the hat. There is a constan...
by Demonslayer
Sun Aug 21, 2016 8:25 am
Forum: General discussion
Topic: Pi with flyduino flight controller?
Replies: 21
Views: 4263

Pi with flyduino flight controller?

I'm building a compact drone and have quite strict size constraints. The Raspberry Pi Zero fits perfectly, nothing larger would have fit. So I want 2 of them in there networked. One linked to the flight control and reciever, servo, sonar and motors. The other linked to camera, flash storage, gsm and...
by Demonslayer
Sat Aug 06, 2016 11:22 am
Forum: General discussion
Topic: Pi Zero order limit?
Replies: 43
Views: 13188

Re: Pi Zero order limit?

The zero is perfect for my intended use because it can easily be fitted with a camera and I don't need audio output, ethernet and huge USBs. The zero would fit perfect and is excactly what I need.
by Demonslayer
Sat Aug 06, 2016 9:43 am
Forum: General discussion
Topic: Pi Zero order limit?
Replies: 43
Views: 13188

Re: Pi Zero order limit?

I wonder the same because I have a project that will require at least 200 units pr year. If supply is such a problem I will have to choose another board or design one myself. Please make more Zeros. If you have problems with production capacity, maybe we can work something out? They can be made in l...

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