MultiWii

So main benefit would be for stunt flying. For general flying & FPV the stock standard ESCs would probably do a reasonable job. What inbuilt program settings of a standard ESC such as my Hobbypower 30A do you suggest to get the best performance for multirotor application? I have seen some SimonK...

Check your connections to flight controller from RX. If correct then check channel assignments for the new model you created in TX. You will see this repeated, but essential that you set PWM range from 1000 to 2000 & trim for 1500 at neutral stick. If you don't you will have problems arming &...

Hi Walrt, I did prior to this post & got some conflicting advice NOTE (SimonK): Before you buy these, you should make yourself familiar with the somewhat experimental nature of the SimonK firmware. This software pushes the motor response to the limit, so there may be motor and prop combinations ...

Hi Tovrin, I also built a quad using X525. Did yours come with MWC 2.5 clone of Crius SE V2.5? I did my maiden flight with standard settings & it performed extremely well. I didn't even have to trim TX as I'd already set up in GUI with 1000-2000 with 1500 mid for all functions on TX before even ...

Hi Quadbow, Thanks for the info on flashing LED strips with battery alarm & 32 bit FCs. I think I will go for the Atmega 2560 as easier to program & use with GUI from what you say. I didn't get a chance to try code till last night when I went thru every line of Config.H V2.3 & could not ...

I have been reading a lot about Simon K flashed ESCs & see that you can either do it yourself with some ESCs or buy them already flashed.
Can someone explain what are the advantages for quad use compared to stock ESCs such a the Hobbypower 30A which came with my X525 quad kit?

Cheers...B

Hi Scrat,
I did not get any documentation with my used Lemon 8 channel & could find very little online. Will this sequence cancel the failsafe function in RX?

Any possibility of implementing in next release?

OK got it. Which i2c bus speed should I set with 328 based Crius SE V2.5?

Thanks..B

Now I have my X525 quad hovering & flying pretty stabile I decided to try the Failsafe which is active by default in V2.3. I have Spektrum TX7 TX & Lemon 8 channel RX. I had quad hovering at several metres & turned off TX. Quad dropped very fast but not damaged due to spring loaded legs....

I have quad with 4x Hobbypower ESC-30 ESCs. Do I use 100HZ or 400HZ in V2.3 Config.H?
I am currently running on 100HZ which is the default.

Cheers..B

Had this idea when I missed low battery alarm & came down hard. Just lucky only 3 metres high! As even 328 based FC boards have ability to monitor battery voltage, has anyone tried modifying code so that quad will do a controlled descent when critical voltage point detected? May only be possible...

More info please

I can't afford the NazaV2 or Lite (which both cost more than my X525 kit with FC which is easy to configure & flies so well) so which of the open source 32bit FCs would you suggest that can be configured using IDE type programming & simple Windows type configuration programs which will give ...

Hi Guys, If I am going to upgrade my Crius SE V2.5 328 FC to Atmel 2560 to get more inputs, outputs & memory for sketches & GPS waypoints, what are your thought on getting a 32bit board that will give all this plus ability to run more complex programs when Multiwii upgrades eventually to 32b...

Hi Quadbow, Thanks for detailed reply. I sure I can work it out from this. If I am going to upgrade FC to Atmel 2560 to get more inputs, outputs & memory for sketches , what are your thought on getting a 32bit board that will give all this plus ability to run more complex programs when Multiwii ...

Hi OrbitC, Check out topic http://www.multiwii.com/forum/viewtopic.php?f=8&t=5034 . Quadbow has written code for AtMega2560 so we need to change output pins for 328 based board. Also as Quadbow mentions he is controlling 3 LED strips with different functionality (low voltage alarm, GPS status &a...

Hi Quadbow, I can follow what you have done in sketch but can't see where you define the pins used for output. All I can see is PortB. How does PortB relate to pin numbers? I currently have D5, D6, A0,A1, A2, A8, A7 & A3 (monitoring VBat with voltage divider on dist board) free. As any of the an...

Hi Quadbow, My board is an exact copy of Crius SE v2.5. It has 2 dedicated I2C ports with 5V, a UART serial port (TX,RX, +5 , Gnd) as well as an FTDI port (which appears to be a true serial port (RX, TX, DTR, CTS, +5 , GND). The UBlox Neo -6m GPS modules I was looking at ($20-$27) all had EEPROM. Th...

Hi Quadbow, That's fantastic. Great work! If I understand correctly the first code shown is the original in Alarm.cpp & you replace it with the code in second part. Or do you add it into the original Alarm.cpp? The third section of code is to replace that section in original config.h ? If I used...

Hi Quadbow, Thanks for the info. So GPS must connect only to I2C port & as these cheap GPS Ublox neo-6m only output serial data when using Crius Se 328 type boards you need a converter module but if you use one of the Pro 2560 based boards you don't require an interface? On the 328 type boards t...

Hi Guys, I have already modified my Crius (clone) SE V2.5 for voltage monitoring & have live display in GUI. As MW V2.3 has detection points for low voltage I would like to use an output on board, buffer it with mosfet and control one of the LED strips I've installed on quad. It would be really ...

Thanks guys, yes very happy & with X525 kit under $150 delivered a very cheap way to get into this exciting hobby. I already had a Spektrum DX7 and spare Lemon DSM2 8 channel RX. Next project is to use the onboard voltage monitoring that I have already setup to flash the red LED strip when low v...

Hi, I see the Ublox Neo-6m selling for $20 on EvilBay. They seem to come in two styles ne with external antenna & one all on the interface board. Not sure which is best, but I'm guessing with the external antenna you can mount it above quad as I have seen some do. Does anyone have one of these c...

Hi Guys, I have already modified my Crius (clone) SE V2.5 for voltage monitoring & have live display in GUI. As MW V2.3 has detection points for low voltage I would like to use an output on board, buffer it with mosfet and control one of the LED strips I've installed on quad. It would be really ...

Hi All, As you will see from my previous posts I had the usual trial/error/failure & then success being a newby to quads & Multiwii. Once you get your head around terms you have never heard before, experimented with Arduino & researched forums such as this & Multiwii it all suddenly ...

I did a search of forums & found that most using this Crius V2.5 board set 42hz for 5060 gyro/acc. I did this & I can actually take off for first time so problem was due to vibration. I might use some resilient mounts for FC & might be able to use a higher frequency setting. I just need ...

Fixed it. Because I had set TX throttle low & high settings to get 1000-2000 in GUI when I calibrated ESCs direct into RX it set low speed wrong which resulted in the beeping "throttle too high". I returned Throttle low & high to 100% and recalibrated all ESCs & now beeping has...

Hi Waltr, Thanks for the cheat sheet & yes I can arm with this sequence. I was following one was obviously wrong. I now have a new problem. I noticed that motors with props on were not in sync with speed changing erratically so I decided to recalibrate ESCs. Please advise if I am doing it correc...

Hi Waltr, That worked. Boy I would never had guessed that entry method! After changing parameters do you click Write to upload to board? Any idea what Select Setting button does? I've read that when you connect to board you need to click Read then Start. Is there anything you need to do after changi...

Hi Waltr, I just set low value of 1000, high value of 2000 and mid point of as close to 1500 as I could get with sub trim for all controls on DX7. I set up a blank model on DX7 and using Acro mode. When I attempt to arm using throttle to min & Yaw to far left (I'm using mode1 being in Australia)...

Hi Guys, I have a query regarding modifying values in 2.3 GUI. How do you change the values shown in green boxes, which the GUI states can be modified? If I click on a value & type a new value it doesn't change. I get live data, the GUI is reading the parameters from my reflashed 2.2 to V2.3 &am...

Hi guys, I bought an X525 quad kit using exact clone of Crius Atmel 328 SE V2.5. When run in V2.3 configurator the board appears as V220 which I'm guessing is V2.2 firmware. All parameters appear in GUI & I can calibrate both ACC & Mag sensors. My problem is that when connected to ESCs and m...