|
|
|
Thanks for advice
My quad fly for now nice but not awesome i need few days to correct values of PID and it will be OK here is not complete videos from my yesterday flight the best part i don`t record when i go to camera it isn`t the same .. http://vimeo.com/4152617 regads |
|
|
|
|
||
|
Quote:
-- Torfinn |
|
|
||
|
|
|
Mikro- I'm assuming I should calibrate the throttle range for my Turnigy Plush10amp ESCs through the quadcopter Arduino set up but just wanted to make sure. Or should I plug each one directly into the receivers throttle slot and have the ESC learn the throttle stick range that way?
Thought it was interesting how you can get different channel orders and timing from the same TX (DX7se) using different RXs. Info from "May 2009 RC-Heli" magazine. Great mag by the way. karol- Looks better. Your not flying that quad as if it was an (x) config are you? The position of the batteries makes me suspecious tingo- Sounds like those ESCs should work but I haven't tried them. Kind of off topic, I still plan to build a Quad Tilt Duino, but I tried my Spectrum DSP60 75 servos with my new DX7se and they work as advertised with no problems. They don't get along at all with my Futaba 10c using a 72mah module in case anyone else is having issues. With my Futaba they quickly start to chatter and heat up |
|
Last edited by RCvertt; Apr 16, 2009 at 07:45 PM.
|
|
||
|
Quote:
Good luck! |
|
|
Last edited by Mikro; Apr 16, 2009 at 01:41 AM.
|
|
|
||
|
Quote:
When I know the throttle is set between 1000-2000ms, then I calibrate each ESC using the throttle output of the receiver. Thanks for the timing diagrams! Is there definition as to what receiver channels are connected to which scope inputs? |
|
|
||
|
|
|
query... PLS HELP OUT!!!Hi guys I hv recently subscribed to this thread here. I am attempting to make my own quad using an Arduino Duemilanove board. Right nw I m using HITEC XM 50 brushless outrunners. Kaldak, your posts dont mention any H bridges used for running more than one motors simultaneously . I would like to knw hw u hv achieved that. I m a complete rookie out to undertake a daunting proj. So pls help out : |
|
|
|
|||
|
Quote:
Looks like... Input 1= Channel1 Throttle Input 2= Channel2 Aileron Input 3= Channel3 Elevator Input 4= Channel4 Rudder Input 5= Channel5 Gear Input 6= Channel6 Aux1 Input 7= Channel7 Aux2 Thanks for the ESC calibration info! I'll see if I can try it tonight. I still have to solder my connectors onto the new ESCs. Quote:
Hope that helps. If not then this project may cause you a lot of grief. |
||
|
Last edited by RCvertt; Apr 16, 2009 at 07:47 PM.
|
||
|
|
|
sorry for the off topic, my walkera pcb arrived, i desoldered the sensor board. the gyros work fine but the accelerometer did not respond at all unless i apply physical pressure to the mma7260 chip. from this, i concluded that i had applied too much force on the pcb during the desoldering process and may have caused microscopic cracks in either the traces or solder joints (i was an idiot and tried to leverage the thing off using a screw driver while heating the joints since i was running low on desoldering braid). i plan on reheating the joints around the chip and checking for continuity on the traces, but does anybody have any other advice on how to repair this?
|
|
|
|
||
|
One suggestion is to put it in a toaster oven at 450F for about 10 minutes to get it to reflow. Take the pins off completely first so it is flat on a metal plate. I would also remove the yaw gyro riser board before I did this fix as you wouldn't want the gyro to slip off the board since it is vertical. I use a piece of aluminum and set the boards flat on it to do my SMD in the toaster oven. ...At this point, you can't hurt it
Cheers, Jim Quote:
|
|
|
||
|
|
|
havin trouble with mixing algo for my quad. Any quad rotor mixing codes available??? pls post links if any.
Also is a HITEC Laser 4 a reasonable choice for the RC of a quad??if no, then why and which other alternatives in the 100-250 $ range are plausible?? How many channel-RC is the minimum requirement?? |
|
|
|
||
|
Hey guys, I'm on the verge of releasing the latest version of my quad code. With the additional serial configuration EEPROM code, you'll definitely need a Arduino with the 328P or use the Mega.
I originally named my MikroQuad in homage to the Mikrokopter which got me really interested in this hobby. BUT, since I didn't take any code from the MK and I more took a design approach on the lines of OMM's Quad, I've decided to change it's name to the AeroQuad! So a question to pose to the group. My next objective is to integrate GPS and further pursue autoleveling and explore different control algorithms like integral backstepping. Would you guys think it's better to start a new thread, as I think I'm exceeding the original bounds of this thread? Also, I didn't wholeheartedly pursue using the Walkera sensor board (as posted as one of the items in the parts list on the first thread) because I absolutely SUCK at desoldering components with multiple pins. I'd usually end up ruining the board. Quote:
Pipsqueak might have more insight into this for your setup. But he did say he went to a higher resolution A/D in a previous post, so there might be some inherent limitations without adding additional circuitry for the Walkera setup. @RCVertt, thanks for the transmitter info! |
|
|
Last edited by Mikro; Apr 19, 2009 at 10:08 PM.
|
|
|
||
|
Quote:
You can use any RC transmitter/receiver. You just need to decide if you want to modify your receiver or add additional circuitry to change the PWM output to PPM, or use just read in PWM values with your Arduino. Good luck! |
|
|
||
|
||||
|
I can't believe they have upgraded again to 0015 arduino!
Are you still messing with the Sanguino at all or are you a "Mega" convert? As I understand the Sanguino won't work directly with your code since according to here the pins on the Sanguino have switched for the analogWrite() function. Am I correct here? Quote:
I swear I'm almost ready to fly my quad. My bad ESCs and motor issues, they would noticeably rub in places as I turned them by hand, caused me to make a new frame with new ESCs and motors. It's all wired and ready to go. I'm also happy that the new AUW is at 550g instead of the previous 900g. All I can say it that these new ESCs better function properly tomorrow. Quote:
I would say just keep this thread alive and well just get it added as a link to the first post saying where the GPS stuff is starting. It's not that big yet, compared to the 1000mm OMM thread. This way you won't have to monitor more than one thread. Others are tackeling the walkera board integration so I wouldn't worry about that too much. Not too mention the GPS stuff is probably over my head so I doubt I would be visiting that thread much which of course would be a sad day in Quaduino land On the other hand you would be able to controll and update the first post like OMM does with updated links. Shorter threads can also be easier to digest the info from. Sorry I can't be more indecisive here. Quote:
|
|||
|
Last edited by RCvertt; Apr 20, 2009 at 12:41 AM.
|
|||
|
|
|
Hi all,
The my V2 arduino board is almost ready to fly. I've done some intial gyro and accelerometer sensitivity tests on the new setup which has: - Walkera UFO sensor board, Arduino clone, ADS7828 I2C ADC, and a quad-op amp to buffer the gyro signals. The gyro outputs go via 3 op-amps on a quad-op amp chip (currently with a non-inverting gain of 1), the accelerometer outputs go to the ADC directly. I'm using a 12 bit, 8 channel I2C ADC converter - bought as a module (which uses an ADS7828 IC): http://store.gravitech.us/i2c128anco.html Using Mikro's excellent Mikroplot, visually I'm getting a better resolution and less noise via the external ADC, (with the op-amp buffered gyro signal). There's scope to up the op-amp gain on the gyro's by about 50% - as I'm nowhere near saturating the ADC yet. My next experiment is to measure the ADC sample time via I2C. I've modifed the wire library to run the I2C at 400kHz for maximum sample speed. It will be interesting to see if it's faster or slower that the arduino's inbuilt adc. I hope to have some sort of test flight in the next week or so, we shall see if this more complex approach works better. In hindsight, I think I probably would have just put in the simple op-amp buffer (with perhaps just a small gain) for the gyro signals, and leave everything else as-is! Pip |
|
Last edited by pipsqueak; Apr 20, 2009 at 10:52 AM.
|
Thread Tools | |
Similar Threads | |||||
Category | Thread | Thread Starter | Forum | Replies | Last Post |
Build Log | New Project - YF-23 | GlasairAllen | Electric Ducted Fan Jet Talk | 525 | Dec 13, 2008 11:59 AM |
New project | DBlum | Parkflyers | 42 | Feb 28, 2004 12:43 AM | |
Idea | blue foam new project | reznikvova | Parkflyers | 4 | Jan 23, 2002 08:34 PM |
new project from foam please look | reznikvova | Foamies (Kits) | 3 | Dec 21, 2001 06:29 PM | |
New Project Flys! | Dr. Jet | Sport Planes | 9 | Sep 20, 2001 06:09 PM |