I have a question about Navio2 and raspberry pi

[liudmila.slepova]

Hi @osung1598,

@osung1598

First, you said that the mission file is stored as a parameter in the memory of Navio2, and then unless you save it on your computer for edit or future use.
Then how can you save the parameters stored in the memory of Navio2 on your computer?

Raspberry Pi with attached Navio2 doesn’t save the file with the mission data in its memory. Its memory only has the records of the configured parameters that are being sent from Mission Planner. It’s not possible to access some regular files with mission data on the Navio2 that you can use later on.

You can save the list of configured parameters from Mission Planner on your PC. For this, you need to click on the Save to file button. This file can be used only on the PC. It can’t be transferred to Navio2 for usage.

@osung1598

Secondly, you said that the binary file of the arducopter is located at /opt/ardupilot/navio2/arducopter-4.0/bin/arducopter. Is it simply a source code for operating the arducopter?
Or does it include anything else?

The binary files consist of complex structured data that are meant to be read by the applications. It’s used to run the autopilot software.

@osung1598

Thirdly, as I asked you above, it’s about the power of the drone’s motor.
Does the operator installed in the raspberry pi receive the mission file and various sensor data stored in Navio2 to determine the motor output?

In Auto Mode, the drone will follow a configured mission made up of navigation commands (i.e. waypoints). Auto Mode incorporates the altitude control from AltHold Mode and position control from Loiter Mode. The autopilot uses a barometer that measures air pressure to determine altitude and GPS readings to determine the heading.

I suggest checking out the Auto Mode guide to learn more about it.

@osung1598

Fourthly, it’s about Navio2 pinout.
Is it a PIN that I can use at random in the picture shown in green in the Navio2 document below?
I wonder if GP26 HEADER PIN, GP18 GPIO18_DF13, and GP17 GPIO17_DF13 can be used arbitrarily.

I see that Artem has already answered you regarding GPIO pins in this thread:

I have a question about the pinout of navio2

Hi @osung1598, Sorry for the delay. IO17 and IO18 pins are available on the UART port. You can connect to them via the DF13 6-pin jumper cable from the Navio2 package. GP26 pin on Raspberry header is available for programming too, but you’ll need to use the extension header to get physical access to it. You can access the configuration of either of these ports with the “Relay Switch” function. Please, take a look at this article in our docs.