About

Gender

Male


Location

Suceava


Please tell us a bit about your UAV interest

I'm in real planes mostly ... trying to adapt.


Activity Feed

Cosmin Buhu left a comment for Dennis Lott
"Hi Dennis,
My AP is working fine, finally I used big servos from HobbyKing:

http://www.hobbyking.com/hobbyking/store/__27213__TGY_1270HV_Metal_...

These are powerful enough, maybe not so solid under heavy usage but at their price is no real hassle…"
Apr 15, 2014
Cosmin Buhu replied to Kevin Hester's discussion Andropilot - discussion for Android ground controller users/developers
"Thanks Kevin for the latest version, I will test it today.
Here are two pictures with the AP box with manual controls, in case the tablet thinks is time to have a nap:
The front panel with ON/OFF switch, ON/OFF LED, ARM button and LED, flight mode s…"
Apr 24, 2013
Cosmin Buhu replied to Kevin Hester's discussion Andropilot - discussion for Android ground controller users/developers
"During today testings I had mixed and confusing results with (real) airplane Apollo Fox, Ardupilot and Andropilot, the latter being the most cooperative part. The Fox is a very twitchy airplane, it needs permanent rudder coordination even in level f…"
Apr 18, 2013
Cosmin Buhu replied to Kevin Hester's discussion Andropilot - discussion for Android ground controller users/developers
"Hi Kevin,
I installed today the geared stepper motor for pitch axis and it was promising in flight tests, more powerful but I might need some more tune.
Now the question (of course): what mavlink packet are you using for a single goto waypoint? I ne…"
Apr 11, 2013
Cosmin Buhu replied to Kevin Hester's discussion Andropilot - discussion for Android ground controller users/developers
"Hi Kevin,
In a test flight yesterday I tried to compensate positioning errors using AHR_TRIM_X and AHR_TRIM_Y, positive values worked however andropilot don't let me input negative numbers to compensate to the other side.
My AP will fly side slippin…"
Apr 5, 2013
Cosmin Buhu replied to Kevin Hester's discussion Andropilot - discussion for Android ground controller users/developers
"Hi Kevin,
How are you updating the flight mode, based on what packet? There is a situation in my configuration when the panel autopilot control (designed to work without external assistance like andropilot, having a mode switch and arm button) is se…"
Apr 3, 2013
Cosmin Buhu replied to Jan Swanepoel's discussion Mavlink communications
"From gcs-copter Java:
- from APM heartbeat get info:
MAVLink.CURRENT_SYSID = m.sysID;MAVLink.ARDUCOPTER_COMPONENT_ID = m.componentID;
- send a heartbeat presenting yourself:
msg_heartbeat msg = new msg_heartbeat();msg.type = MAVLink.MAV_TYPE.MAV_TYP…"
Jan 23, 2013
Cosmin Buhu replied to Ari Krupnik's discussion Minimal Ground Station software--MAVLINK 1.0
"Simply connect, listen for heartbeat messages which APM always sends and request your needed info with msg_request_data_stream packet - MAV_DATA_STREAM_ALL 0x00 will give you all."
Jan 21, 2013
Cosmin Buhu left a comment for Cosmin Buhu
"I said above, I will start with 2 Nm which is 17.7 lb/inch. Trio servos give 22.5 pounds of force with 1.6 inch arm radius, 36 pounds with 1 inch arm - they have more torque using internal gears."
Jan 17, 2013
Cosmin Buhu left a comment for Cosmin Buhu
"I forgot: in disarmed mode power voltage is removed from steppers which leaves them with no resistance to movements. Will be a good design to provide somewhere at the last connection a shear pin in the (highly improbable) event the stepper will bloc…"
Jan 16, 2013
Cosmin Buhu left a comment for Cosmin Buhu
"Hi Tim,
I am using APM autopilot:
http://store.diydrones.com/category_s/47.htm
The autopilot is linking with Mavlink protocol over Bluetooth telemetry using BT Mate Silver module:
https://www.sparkfun.com/products/10393
The control station software…"
Jan 16, 2013