I've been building both AutoPilots, and QuadraCopters, and I wanted to drive more servos and ESCs, with less jitter, so I used some ideas from the Paparazzi gang and developed a way to drive up to 10 servos with just 2 output pins from an Arduino or…
"The I2c system only requires two resisters to pull up the bus lines. (I used 4.7k pullups) I've heard of people using the internal pull-ups within the ATMega chip instead of external resisters when you only have two devices and short bus lines.…"
"Here's the calling code from ArduPilot GPS_EM406.pde.zipGPS.pde- shows getting GPS and sending cmds to the slave. I think it would be very easy (and not stress the system) to connect ArduIMU and ArduPilot. I'm planning just that."
"Well - After ripping everything apart, I tried hooking up a +5 volt Arduino directly to the Spark Fun XBee board, and on my bench, with a regulated +5 volt supply, everything worked perfect. Very mysterious."
I wanted two way communication with my airplane, and had moved the serial communication stuff to a 2nd arduino (see my prev blog) but I didn't like the way the code looked, so I reconfigured the system to have the 2nd Arduino handle the GPS and…
I wanted two way communication with my aircraft, but when the GPS is running, the Arduino board only has 1 side of its single serial port available, so I added another Arduino Mini to provide 2-way communication between my ground station and the…
"I'm using an ADXRS613 @ 150 degrees / sec. via a breakout board from Spark Fun. It outputs an analog signal 0 to 5 volts, so I sample the rotational rate voltage via analog(4) and the 2.5v vRef on analog(5)."
While flight testing my Magpie and ArduPilot, I was having a problem with over-shoot during Way Point Navigation. After hitting the way point, the aircraft would start turning towards the next way point, and then continue turning until way past the…
I've been tuning the GPS portion of my ArduPilot / Magpie airframe combination, and put together this flight data recorder to save the results of the flights without having to take a laptop out to the field.The data recorder consists of a Spark Fun…
"Here is a link to the Arduino version of the XBee Base Station software. Includes copies of the changes made to the ArduPilot code. http://www.photopete.com/swarm/ArduBase.zip"
I just finished setting up my Magpie AP airplane to use the ArduPilot UAV controller, and used a fast and easy way to setup the PID and trim values.I made a ground station that can send new trim values up to the plane while it's in flight. That made…