I'm trying to let the drone to track the GPS signal of the remote controller. My drone is Mavic 2 pro and my remote controller is C2. Here is my code. Using this code the GPS signal of the controller I get is always 0.enter image description here
The RC deosn't have a GPS. You have to do normal android gps calls.
Be aware that many devices have worse gps-reception when connected to the RC.
Are you really using C2 with the mavic2? That RC will only work with the spark.
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Is it possible with OSDK4.x to command payload and flight actions and use the DJI Assistant 2 for Matrice concurrently?
Previously, we have been using the M210V1 with OSDK3.9. Using the DJI Assistant 2 for Matrice to simulate the drone flight is key to our ability to develop our system.
However, the M210V2 and OSDK4.x require the USB port of the drone to be connected to the Linux device running the OSDK, otherwise any payload (GimbalManager, CameraManager) actions throw an error - such as GimbalManager::resetSync.
This is not ideal for development since we cannot use the simulator (on MacOS) and connect the USB to the Linux device (there is only one USB port on the drone). Has anyone solved this problem?
Yes and no.
For 210, There is only one USB2 port and it is either for connecting to PC side assitant2 or connecting to onboard PC to get osdk stream. You can think it as a bug in design phases.
Yes, you can run part of osdk and run the simulator without the payload camera-related function. If I recall correctly, I can still "rostopic echo" the Gimbal orientation topic from the drone. Its only image topic that is disabled. You can simulate the GPS based flight in simulator and try to set gimbal direction. I remember this was achievable.
There is no way for you to run both simulators and get payload functions such as images from OSDK. so to get both image running and drone running in simulator that's not achievable.
If you really wants both at same time. I suggest you move to M300 which they have dual USB C interface for both camera stream and for simulation.
I am using the Onboard-SDK for DJI M100 on ROS.
I developed a code for controlling the position of the M100 to certain target position.
However, it doesn't reach the specified target.
For that reason I checked the published control signals with ROS, and as I saw, in some experiments the frequency of the control signal is not "constant" at all. For example, sometimes I have 50Hz, some others 5Hz, 10Hz etc.
I would like to know what is the actual reason behind this.
Assuming you 3.3V FTDI works and have perfect working hardware, I would guess some 1 changed the DJI assistant2 SDK setting for you. Otherwise, it will not changes. I had some simar problem before, but the problem is I burn the API port by using 5V FTDI
Besides, you control should be sent to the drone in a fixed time loop by running a ros loop rate and ros sleep routing. not send at each callback. The reason being that you need to control your drone position with PID or other control methods which is time depended.
I have an M600 PRO (A3) and I need to connect an Arduino to it to receive a drone shutter.
In fact, I would like to use Drone Deploy with a photo of each waypoint and at the time of each photo I would like my arduino to receive this signal to perform a specific task. I have no camera attached to the drone.
Could someone help me with this task? I've already been able to connect A3 to the Arduino. I still can not understand the data bus fault.
i already connect one Arduino to the DJI MAtrice 600 Pro, but I do not found the hexa-Code related with shutter sign
I would like to receive the shutter sign from Matrice 600 in my Arduino, in order to program a special task related with this sign.
Since you say you want to use Drone Deploy, you won't be able to use the Mobile SDK and will need to build something with the Onboard SDK. It's unclear what you want since you say you have no camera but want to trigger something every time a picture is taken.
If you just want to detect when Drone Deploy tries to take a picture, you may get an error depending on if the sdk thinks there is a camera detected or not. I haven't tried the Onboard SDK much or especially tried without a camera attached so I don't know if an error will result or if you can set the trigger in the take picture callback.
Either way the best place to start is probably the Camera sample onboard sdk app.
I would like to know all of Lightbridge, Phantom 4 Pro, Inspiron 2's controller and drones communication method.
I have many drones from DJI including Phantom 4 Pro, Inspire 2, and Matrice 100.
I want to create a Lightbridge system that is mounted inside the controller through PC programming.
Because the DJI drones I purchased connect the mobile device and the controller with USB cable, and the controller and the drone communicate with the Lightbridge, so the controller must be in the middle of the communication system, but I just want to control the drones directly through my PC.
As a result, how can I imitate the Lightbridge system to communicate with my PC, control (takeoff,landing etc.) , and capture live images.
So I'd like to know about the Lightbridge that helps.
Lightbride is a proprietary protocol. That means we (I work at DJI) do not disclose or document the details of its implementation.
On another hand, removing the remote controller would mean you create/provide your own transmitter which add quite a lot of complexity.
The best way for you to control the aircraft from the PC at this point is to write a mobile app as a bridge and control the app through your PC.
Now, this can be done in a wired manner:
You could write an Android app with the mobile SDK on a device with ethernet such as Odroid and chain it all together.
I am developing an Android app for Mavic-pro drone in which I need to use the follow me APIs. But in DJI Go app when we connected to the drone by wifi it doesn't shows the follow me feature. Can somebody please confirm whether the drone supports Follow me on wifi mode?
Nope, DJI Mavic Pro doesn't support Follow Me Mission on WiFi mode. You can check the SDK API Doc of DJIFollowMeMission on DJI Developer Website: http://developer.dji.com/api-reference/ios-api/Components/Missions/DJIFollowMeMission.html#djifollowmemission
Description:
The class represents a Follow Me mission. In a Follow Me mission, the aircraft is programmed to track and maintain a constant distant relative to some object, such as a person or a moving vehicle. You can use it to make the aircraft follow a GPS device, such as a remote controller with a GPS signal or a mobile device. It is not supported by Mavic Pro when using WiFi connection. It is not supported by Spark.