MultiWii

Hamburger

I presume that is invocations of the ezgui app? What a surprise to see a version 2.32 whereas MWii only recently went to 2.31.
Do you have any info on what flavours/forks of MWii firmware (original, baseflight, cleanflight, kamikaze or whatever ) those are?

Hamburger

do not tune analog readings while powered over usb.
If you have no other choice of monitoring values, then open a usb cable and cutting the +5V line may help. Then run board from lipo/ESC/BEC and tune.

Hamburger

vbatscale and other values are stored in eeprom - did you run the eeprom.clear sketchfor your changes to take effect?
I do not know your board, but TX0 sounds like a serial port. You want an analog port for voltage reading - usually named and labeled A0, A1,....

Hamburger

Many thanks for the hint : looks like 862 Bytes saved I'll get Digole now ! good move! One other thing: for i2c the controller requires to solder one bridge. It is labeled correctly on the pcb but some printed graphics have it swapped with the spi solder bridge. The pcb printing has always been cor...

Hamburger

This board lacks some analog pins.
Easiest option is to free the a14 a15 pins . Only 6 or 7 channels from rx then or use ppm or sbus.
Then use the override.vbat.pin feature. Setup as described in wiki.

Hamburger

nothing to be done about moving the post - forget it. Re GPL: the GPL is not about monetarizing but about IP. You have complete choice of either buying or building MWii-capable hardware and either use preloaded MWii code or compile and upload yourselves. If/when you start either using portions of th...

Hamburger

just curious, I see you making some serious requirements on the MR part ( robotic drone platform ); if we had MR controller code doing all that it would be of substantial value in itself. What exactly does your on-board data collection system offer? PS: unfortunately, we do not have a moderator to m...

Hamburger

tail precomp is in r1726 now, even tunable via lcd (and possibly MWiiGui soon).
As I do not fly pid.conroller=2 I am hesitant to copy'n'paste that portion for piro optimization, sorry. Any volunteers to test fly?

Hamburger

EDFs are not the most efficient choice for hovering - what are your plans for using this ship?

Hamburger

In the wiki you can find info on what the xyz values of the sensors should do. Simply experiment to find your orientation values for your board.

Hamburger

Sounds ok.
MWii 2.3 has been released for almost 1 year

Hamburger

Not real good.
Setting/overriding sensors orientations with the override.xy from config.h works just fine.

Hamburger

ok, I do the search for you - BT is the key
viewtopic.php?f=6&t=373&hilit=bluetooth

Hamburger

Yes you can configure your bt.module by running a special sketch/program on your mwii board.
I and others have posted such earlier in this forum.

Hamburger

I had a 325mm cp heli with 4blade head for some time working with mwii. Usually you run that with much lower headspead compared to 3D-2blade setups; that leads to kinda weak tail authority. But it is nothing close to "spinning like crazy". Is the yaw signal from the rx in mwii correct - fo...

Hamburger

without further info on the BT model /version/ firmware it could be difficult.
Why not ask Paul or witespy?

Hamburger

as an alaternate way to reverse servo travel use //#define FORCE_SERVO_RATES in config.h
Needs a reset from the gui or an erase of eeprom

Hamburger

Please note the difference between fixed wing (airplane) and flying wing (exactly 1 motor plus 2 elevon control surfaces/servos)

Hamburger

so did you experience any difference in behaviour with the correction to piroutte computation?

Hamburger

PhilMartp wrote:Well, I've sorted the OLED display out, quite pleased with my little effort there

ul.

Then please enlighten us what was amiss.

Hamburger

No. Not related. I have 3 copters with combo of sat and i2c display working fine.
With sat I find it is difficult to reach endpoints. Check in gui and tweak your tx endpoints to get close to 1000 and 2000.

Hamburger

just curious, when I convert the variable uint8_t line_is_valid to single bit in flags_struct_t f and references turn into f.LINE_IS_VALID , then the size of binary increases. Same effect when applied to uint8_t refresLCD, so probably there is some logic behind this. Both variables are really only u...

Hamburger

airplane: config.h - around line #50
flying_wing: connect 2 servos and one ESC for the motor to your MWii

Hamburger

Hello sachiho, thank you for your contribution. For easier reading I made a diff against v2.3 diff -BbwE -r -u MultiWii_2_3/MultiWii/MultiWii.cpp multiwii-helimod/MultiWii/MultiWii.cpp --- MultiWii_2_3/MultiWii/MultiWii.cpp 2013-11-07 23:56:18.000000000 +0100 +++ multiwii-helimod/MultiWii/MultiWii.c...

Hamburger

2 choices:
a) flying wing has 2 servos and one motor
b) airplane has lots of servos and motor options.

Hamburger

Mpu6000 and the Baro is spi instead of I2c. If someone can fix the spi code it's a Go. Ah, now I remember to have read this before. Bummer, activating another bus for the sensors will not go nicely with the current simplicity. The mini apm 3.1 m seems to provide a fair amount of i/o for rx, motors+...

Hamburger

To my knowledge with the override* options you can force vbat and pmeter readings to any of the available unused analog input pins.

Hamburger

mini APM boards with 2560 are available in 35x35mm size.
Can APM boards be used for MWii? I could not easily find more info on the sensors used?

Hamburger

Hamburger wrote:Low voltage triggers alarm handling. Alarm uses buzzer for signaling.
So best search for buzzer/beeper pin or override its default.

Enable in config.h
Find Pin for mega in def.h

Hamburger

Low voltage triggers alarm handling. Alarm uses buzzer for signaling.
So best search for buzzer/beeper pin or override its default.

Hamburger

nice. depending on the vibrations from motor you may want to enable gyro.smoothing in config.h. Some sensors like 6050 provide internal filtering, for the rest we have gyro.smooth averaging filter. I found it helpful for a 60cm flying wing with pusher prop which had way more vibrations than my multi...

Hamburger

Superimposing two pwm outputs to an esc input should give - chaos. Or nothing working at best.

Your best bet is to read up on the exact requirements. From there do not think about how stupid you may find those but find a way to implement a fulfiling hardware/software solution.

Hamburger

eeprom write is slow, so we have it limited to unarmed state (maybe not with gui?) - then a baro glitch could be considered non-important.
eeprom write is exclusive in MWii, so pause of everything else is expected.

Hamburger

EOSBandi wrote:Well, it was a quick hack to fix a problem in WinGUI. I thought that without servo the config struct elements will be zero. But i realized that it contains garbage....

Umh, I took that for an ok to remove it. Hope the interpretation was correct?

Hamburger

anyone to confirm the memory waste from the unused SerialWrite16()? Nope, I tried it (r1700) and the sketch size remains at 11668 byte even if I comment out the function.... (Using 1.0.5-r2 with Visual Studio IDE) some update: both arduino ide 1.0.3 and 1.0.4 come with the same toolchain (according...

Hamburger

Hi, I use the 8 predefined configurations of COPTERTEST for nightly builds. Here is a plot of memory requirements - both program (pX) and data (dX) on y-axis over revisions (x-axis) . For reference values I took v2.3 requirements (r1608 dated Nov 10, 2013). In case you did not know the sets used for...

Hamburger

I get about 50 to 100m with copter in air line of sight unmodded.
Just using original pcb antenna of 6$ modules.

If with antenna you get 50m then antenna is wrong.or your board is inferior

Hamburger

Nope, I tried it (r1700) and the sketch size remains at 11668 byte even if I comment out the function.... (Using 1.0.5-r2 with Visual Studio IDE) ok, seems to be a compiler issue then. I use the toolchain that comes with older version of arduino IDE', probably 1.0.3. What is the current 'official' ...

Hamburger

that 450 looks interesting. Is it tuned for speed? Rotation of tail looks unusual?
Btw. why was it difficult to use MWii - on 450 space is available for regular rx+fbl and mwii should be comparable in size with any of the all in one boards?

Hamburger

I do not know how small mcp-x is.
Gaui 200 fbl with 205mm blades is my smallest with nanowii+spektrum.sat+i2c.oled

Hamburger

if you have no other way to check the gps data interpretation of inside MWii then you could enable lcd.telemetry and lcd.tty features. Then connect via serial/usb cable to your arduino pc and run the terminal/monitor from within arduino ide. Once you get to see telemetry page 7 you will see written ...

Hamburger

anyone to confirm the memory waste from the unused SerialWrite16()?

Hamburger

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1.8" http://www.digole.com/index.php?productID=848
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Hamburger

http://www.digole.com/index.php?categoryID=153
One can find digole brand displays both on ebay or directly from brand website, shipping either from China or Canada.

I own choice of 0.96 ,1.3, 1.8 and large monochrome i2c displays.

Hamburger

my next tests use the configuration of #define COPTERTEST 1. If I enclose the unused function in Protocol.cpp with an #ifdef like this that will reduce hex file size by 106 bytes. #ifdef GPS_SIMULATOR void SerialWrite16(uint8_t port, int16_t val) { CURRENTPORT=port; serialize16(val);UartSendData(por...

Hamburger

You could attach a i2c display permanently. I run that combo on all of my helicopters with 328p 32u4 andmega boards.

Hamburger

Ah ok. So we get an idea where and what to look for.
Thanks.

Hamburger

with the same config as before - no GPS, regular RX - I see an increase of memory consumption of about 170 bytes when going from r1692 to r1695.
From first glance this comes with eosbandi r1694 code changes. Not sure which part of that huge submit would bring such increase.
Anyone else observed this?

Hamburger

done in r1696

Hamburger

from a quick look - I do not use ppm or sbus.
rxInt() for ppm and readSBus() for sbus get attached to an interrupt; that looks like it would deliver values about the same way as for regular pwm channels inputs?
What extra processing is required to have sane values in the configuration loop available?

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