When the ublox 6 series modules were released, I noted that the 6T and 6P modules provided access to the raw carrier phase measurements, and I started thinking about how to use this capability. My connections through my university research appointment weren't strong enough to get ublox to sample a dev kit to me (they generally don't sample them at all). Jordi and Chris from 3DRobotics.com were kind enough to use…Continue
It is that time of the year when for many of us the furnaces have been turned on for the coming winter and the indoor air is getting dry, so it must be time for my annual ESD Public Service Announcement.
What is ESD? Electrostatic Discharge! That little spark you sometimes get when you touch a light switch or some other grounded object.…Continue
I have had a Lemon-RX (previously known as Orange-RX) DSM2 6-Channel Receiver (PPM + UART)
sitting around for a bit, and finally got around to hooking it up to my logic analyzer and checking it out today. I was interested in this RX as an inexpensive option if you need PPM output and run Spektrum/JR gear. I knew from the spec sheet that the channel resolution on…Continue
In response to Chris' post of the best AP video ever, I have this offering
A feature frequently requested is to add support to ArduPlane for using sonar to control the landing flare.The answer, unfortunately, is probably no. Take a look at this graph I obtained yesterday...
This has been on my to-do list for ages as I have never gotten around to getting some real world data to see if this would work. Finally got the real world…Continue
What is ESD? Electrostatic Discharge! That little spark you sometimes get when you touch a light switch or some other grounded object. Electrostatic discharge is always an issue when working…Continue
I had an excellent test flight with the new Auto Flap feature this morning.
This picture is the end of a fully autonomous flight. Sorry, I should have had video running.... It is impressive that the Skywalker is sitting within about a meter of the center of the runway. However, what is really cool about this landing is that there was a 10-15…Continue
I have uploaded a new revision of APM to the trunk repository (r3665) with automatic flap functionality. I am really pressed for time so am hoping some community members can do some flight testing on it and report back.
Flap functionality can be assigned to channel 5 or 6, using the rc_5_funct and rc_6_funct parameters (similar to setting up…Continue
Sometimes APM development goes fast, and sometimes it goes like molasses in winter. After being asked repeatedly (over many months - sorry) I have finally gotten support for multiple aileron channels in place. You can use this if you want to set your airframe up with differential ailerons or if you have separate servos on your ailerons and they don't move opposite…
Here is a video clip from Paul Mather and my last minute entry into the SparkFun Autonomous Vehicle Competition.
The day before the competition I realized that the DIYDrones community had an unused entry into the competition and I had a second UAV ready to go, so I recruited Paul Mather as a teammate and we became team "Plan B", flying a SkyWalker…
OK - After working with a small group of Alpha testers, I guess we are ready to open the flood gates and make a public release of ArduPilotMega!
Here is what you need to know:
Following on with Chris' humerous submission today, and the bit of storytelling we have been enjoying in recent blog posts, I figured I'd post my latest tale of woe. Hopefully you will find it entertaining!
So, this past Saturday I competed in the SparkFun Autonomous Vehicle Competition using an ArduPilot with 2.6 firmware and ArduIMU. My airframe was the SkyFun from…Continue
Here is the data from my first flight test - ublox is blue, scp1000 is pink. The data was taken while manually flying a SkyFun "pusher jet" in somewhat gusty wind conditions.
There are several things…Continue
I have been busily testing ArduPilot 2.5.1 with ArduIMU and correcting bugs in the basic functionality. I now have all MODEs working well in my primary airframe configuration and will now work on verifying other configurations (radio types, shield versions, thermopiles, etc.)
If you want to help test climb aboard. There is an active thread in the…