"If you have it at the ground, you can also overlay ODS onto ground-based video (e.g. if you have a pair of camcorders - one for video capture and the other to record combined video stream)."
"Flapping wings depend on body inertia to facilitate the "up" stroke. I like the comment about ducks. I expect there's a reason why we don't have flying birds the size of elephants. Scaling up from "bird size" is problematic. Some aspects will…"
"You'll find everything goes through the MAVLink library, but that in turn calls user-supplied functions to actually send to serial port using the FastSerial library. MAVLink facilitates "channels" which are virtual links rather than directly coding…"
as reported in this Makezine article,"The clever designers at Chicago’s Tanagram adapted code developed to recognize those little black-and-white augmented-reality markers..."I'm thinking a smaller marker, ArduEye, and automated landing for…
"You could use SoftwareSerial http://arduino.cc/hu/Tutorial/SoftwareSerial
Rather than using an on-chip UART, it processes serial comms entirely in software, one bit at a time."
"Great info from Pbreed.
RTK takes a bit of processing. Using a NovAtel or similar gives you a separate processor dedicated to the purpose. It costs, but you're paying for both hardware and software capability.
RTK involves phase-locked tracking.…"
"The pin spacings for the headers are all 0.1", including the gaps between the headers. So, just count the dots.
Or, in Eagle, there's a constant display of the cursor co-ordinates (I think). The origin is one corner of the board, so move the cursor…"
"Nice design.
Jordi, can you pls confirm that the 12 analogs follow the same pinout convention as the Input+Outputs, with 0v at edge of board, +v as 2nd row, and signal pins in the 3rd row from the edge?"
"I've adapted the current AP_GPS libraries to work with Serial2 and Serial3 on Arduino Mega; that wasn't hard. They do use FastSerial and BetterStream which would hinder change to a software serial.
The guts of what you need is:
- send initialisation…"
"If you want penetration where there are obstacles and/or moisture (leaves, trees), go lower frequency than standard WiFi (2.4GHz). If you really want WiFi, look at Ubiquiti's gear. They have some in 900MHz band."
"I've seen discussion on optical flow for measuring speed; how about targeting? To address variations in GPS location, a specially marked helipad could be recognised visually, for high-precision landings. Anyone up for this?"