Sorry for the late reply. I don't have any experience with autonomous submarines, but always been fascinated by the idea. You could try searching the internet. If you could get the buoyancy just right it might sit just below the surface…"
I bought a chinese clone radio and it had a different usb chip that wouldnt work with my smartphone drivers. So i am trying to find a genuine 3dr usb telemetry module or one with a genuine Ftdi chip. It might be difficult with 3dr not selling them…
At least I am not the only one with this problem. After modifying the events.pde file the autopilot was able to safely take control and land from a loss of ground station radio signal when using a joystick. I made the changes a year ago to…"
"Yes, that would be nice. You might have to overpower the other person's transmitter. A 5 watt linear amplifier would probably work for transmitting and you could use a second module for receiving (and two antennas), but it might be worth…"
"You guys are right. It should be MHz. I was typing fast and didn't think about it. I read something on the 3dr radio wiki about a company called Shireen that makes a 900mhz bidirectional amplifier with 12dB transmit gain, and 18dB receive gain that…"
"True in most cases, but I have an amateur radio license and I plan on doing it legally like APRS data packets on 440mhz. Amateur handheld transceivers use 440mhz at 5 watts legally and don't interfere with anyone."
I have upgraded to a 1 watt radio, but even with good dipole antennas I am only getting around 800 meters through trees and buildings (much more when up in the air of course). Better antennas may help, but I am considering using more power and 5…
"I don't know the solution, but you may want to try an older Mission Planner on a fast computer and use a fast baud rate like 115kb for usb and air data rates. I have flown arducopter using Mission Planner/Mavlink joystick control and it was a bit…"
"It is a good idea to test your quad with a new bec or 3dr power module to rule out the voltage issue, but I am not certain that was the cause of the wobbling. I think that it could be the autopilot trying to stabilize the quad while the throttle or…"
"I had a violent wobbling like you mentioned on a failsafe with v3.2 firmware. It was a gcs failsafe though. I am not sure if the failsafes can cause the same problem, but there was a change to the events.ino file recently that can cause it to…"
I have a few Mediatek gps modules that I am not using and I would like to build a small gps tracker (not to use on a UAV but something else). The gps trackers that use radios like Garmin dog trackers cost quite a bit. Can I just connect the serial…