M4 - what is it, what can it do?

Info and discussion about the autonomous Micro FC, suitable for nanos, micros and mini multirotors

Re: M4 - what is it, what can it do?

Postby Altix » Tue Jan 27, 2015 9:27 am

aBUGSworstnightmare wrote:...Let me know if I can help you (crossreeding i.e.)...


Thanks Jörg, being far away of being an AQ expert, I will certainly come back on this. The idea is, to write some kind of a mix between field report and a basic "How to...", just in order to increase the interest in the little M4 a bit. The reason, why I started my recent project with the Mini-H is, that to me, the M4 has the potential to be the perfect FC for this class of copters, specially, when your intention is to fly FPV. From what I have experienced with the Ladybird prototype, I expect it to offer a rock solid flying behaviour, an excellent baro and RTH. Everything condensed on a small board with only few wires. What more do I need and who else can offer that without adding tons of cables and restricted software, like e.g. DJI is doing?

On the other side, AQ in general is still looked upon being expensive and complicated (which perhaps still isn't completely wrong). Most pilots haven't even realized, that with the introduction of the DIMU, life has become much easier. Furthermore, an english wiki seems to be a major barrier for many pilots. So, thats the background, why I'm thinking about writing my article.

aBUGSworstnightmare wrote:...Where do you plan to post it?


That's a good question, I haven't answered yet. It would be natural, to do it in FPVC, but I have decided already some time ago, not to post any knowledge anymore in that forum as a totally disagree with the behaviour of the admins and mods there. Somebody called it a North Korea forum, and I think, this person was right. Unfortunately none of the other alternatives will reach that many pilots. So I don't know yet. Let me do one step after the other;) First of all, I have to finish the project Mini-H itself, then I have to write the article. So there will be plenty of time to think about where to post it finally ;)
Regards, Michael
Altix
 
Posts: 45
Joined: Tue Nov 25, 2014 6:54 am
Location: Heiligenhaus, Germany

Re: M4 - what is it, what can it do?

Postby Mullet » Wed Jan 28, 2015 3:39 am

@Altix

I think it would be great if you posted your findings in both German and English. I'm interested in doing FPV with one of my M4s. So I think I'd get a lot from the English version. You are right, there is a learning curve with AutoQuad. I can attest to this with my recent posts. I'm not sure if it's AQ or just this hobby in general. Unless you are buying RTF then there is a learning curve. Even with RTF there is a learning curve. You have to learn how to fly the craft too and not crash it too often.

It is my opinion that the people looking to learn or looking for a challenge will be attracted to AQ. A few months back I decided to finally get into this hobby after first learning about it in 2012. I read an article online the mentioned 3D Robotics and DIY Drones. I went to DIY Drones website, but didn't follow through because of other hobbies. I have been into DIY audio for a few years, building headphone amplifiers and digital-to-analog converters for my headphone hobby (addiction). So I knew I'd eventually end up here or something like it. I started looking at nano sized quads that had a DIY element to them. I first found CrazyFlie, but soon realized that the platform wasn't for me. I didn't like that the only way to control the craft was via iOS or joypad via a computer (joypad is better than iOS at least). I wanted something that was more traditional I then found the M4 and haven't looked back. I like that it's small, but powerful and is modular. Even with my recent issues I'm glad I chose AQ.
Mullet
 
Posts: 181
Joined: Sun Dec 28, 2014 5:56 am
Location: Fairfield County Connecticut

Re: M4 - what is it, what can it do?

Postby Crizz » Wed Jan 28, 2015 9:51 am

German manual for quick set up would be nice, if i can help (maybe with own experience in try & fail :) ) let me know where you post it
Crizz
 
Posts: 211
Joined: Sat Aug 09, 2014 3:43 pm

Re: M4 - what is it, what can it do?

Postby kinderkram » Wed Jan 28, 2015 10:29 am

If anybody is up for a German translation I could grant access to the Wiki as an editor w/o admin rights.
I previously had a translation tool for WordPress (transposh) which offers machine translated texts to start with.
It keeps the structure of the pages and displays the translations by adding the country to the URL.

There´s also JensKa preparing a quick start guide for the AQ6.

Tell me what you guys need...
kinderkram
 
Posts: 2911
Joined: Fri Jun 22, 2012 7:47 am

Re: M4 - what is it, what can it do?

Postby Crizz » Wed Jan 28, 2015 12:39 pm

maybe a machine made translation is a base to start from, if its still editeable to correct some translation faults like grammar or syntaxes
Crizz
 
Posts: 211
Joined: Sat Aug 09, 2014 3:43 pm

Re: M4 - what is it, what can it do?

Postby Altix » Wed Jan 28, 2015 12:53 pm

OK, for me, there is still a long way to go to get the Mini- H flying, which is the base for writing anything. The idea was to write something like a cooking book, starting with the ingredients (here components), and then describe the steps what to do to get things into the air. Those 250 sized Mini-Hs are very popular these days, so the cooking book would be easily to follow door opener into the world of AQ. Nothing more. If somebody wants to go in depth, there is no way to pass the Wiki and the forum (this is at least my opinion at the moment).

Regarding a translation of your Wiki I doubt, if this could ever work. To keep the English version at the latest stage of development is already a hugh task, which sometimes fails as we all know (no critizism, just an observation in many Wikis I have been reading in the past). To keep several other languages up to date in parallel will never work.

But again, first of all my baby has to fly, which probably will take some time. After that I can do the next step.
Regards, Michael
Altix
 
Posts: 45
Joined: Tue Nov 25, 2014 6:54 am
Location: Heiligenhaus, Germany

Re: M4 - what is it, what can it do?

Postby funkjan » Wed Feb 11, 2015 7:33 pm

just started with my M4 LB build :) and I wonder if I should get myself one of the 10mm patch antennas - showed here in Jussi's shop: https://viacopter.eu/multirotor-shop/an ... pter-store

But what is the key, when it comes to the decision wether to take the 15db or the 25db model?

and does the relatively high investion of with insured shipping sth. like €50.- makes sense compared to the DIY Dipole?

http://autoquad.org/wiki/wiki/m4-microc ... a-options/


thx in advance for your inputs - regards

Jan
funkjan
 
Posts: 18
Joined: Sun Nov 04, 2012 11:39 pm

Re: M4 - what is it, what can it do?

Postby gredeby » Thu Feb 12, 2015 9:01 am

I made a dipolar GPS anttenna and I,m satisfied with that.
My AQM4 LB get sat lock in 20 sec. If I use alt pos hold at once. It,s doing a TB with a circle of 1m.
After 1-2 min that behavior disappear.
Regards,
gredeby
gredeby
 
Posts: 27
Joined: Thu Dec 20, 2012 7:28 pm

Re: M4 - what is it, what can it do?

Postby funkjan » Fri Feb 13, 2015 1:13 am

gredeby wrote:I made a dipolar GPS anttenna and I,m satisfied with that.
My AQM4 LB get sat lock in 20 sec. If I use alt pos hold at once. It,s doing a TB with a circle of 1m.
After 1-2 min that behavior disappear.
Regards,
gredeby


Thx gredeby - good to hear, that you are happy like others (and for sure it will be good enough for me too) with the DIY dipole, but I still would be interested if the use of one of these patch antennas is an improvement?

and - as I don't know - what makes one favour the 25 over the 15db model?


regards

Jan
funkjan
 
Posts: 18
Joined: Sun Nov 04, 2012 11:39 pm

Re: M4 - what is it, what can it do?

Postby JussiH » Fri Feb 13, 2015 10:27 am

Basically, The lower db rating, the wider "view" of the sky the antenna has.

So...in theory a 15 db antenna should be better than a 25 db. However, in case of the 10mm, some results have shown the 25db to perform better. An explanation could be that the wider receiving area of the 15 db also makes it succeptible to pick up EMI from the control stack, so that it needs a bigger groundplane.

In any case, with a ceramic patch antenna, the groundplane area becomes important. As a rule of thumb, I always aim to make the groundplane diameter at least double the diameter of the antenna. Basically, the more GP area you have, the better your antenna will perform.

A well shielded active Patch antenna will outperform the dipole in most cases if there is sufficient groundplane under it (and probably also distance to the FC has impact). But on very small copters, it can be hard adding enough groundplane to make a patch work well.

So in that case, the Dipole is good, since it allows to use little or no groundplane, provided the antenna itself is high enough off the board itself.
JussiH
 
Posts: 2103
Joined: Thu Jun 21, 2012 9:25 pm

PreviousNext

Return to AutoQuad M4 Micro Controller

Who is online

Users browsing this forum: No registered users and 4 guests

cron