Hi,
I managed to install the Apm software. The apm is launched by default on boot of the pi (navio + and raspberry pi 3).
I modified my Dx6e to have :
I have got an AR7700 which is a PPM receiver.
On boot, the led switch between blue and red only for a few seconds and motors make 1 beep, enven if throttle is high. Reboot doesn’t change anything.
Is this the good PPM channel layout ? Am i missing anything ?
Best regards,
Hi,
Did you connect to MissionPlanner? What does it say, any warnings?
Hi.
No i haven’t. What’s the best way to do it.
I noticed that most of the startuplog file is not readable. Is this a baud problem ?
https://docs.emlid.com/navio2/Navio-APM/installation-and-running/
The above link gives a good overview of how to connect up to Navio using Mission Planner, which can be found on the download link below:
http://ardupilot.org/planner/docs/common-install-mission-planner.html
Easiest way to connect is by doing the following:
sudo nano /etc/rc.local (this edits the rc.local file)
Add the following command to the rc.local file:
sudo nohup ArduCopter-quad -A udp:192.168.1.2:14550 -C /dev/ttyAMA0 > /home/pi/startup_log &
But change the IP address to the IP address of the computer you’re using to connect to the RPi. This will enable connection from a GCS, using UDP and the UART port when using a 433 Link etc.
Then open up Mission Planner, using the connection options, select UDP and connect.
If using a 433 link, select the Com port you have configured, and 57600 Baud.
Hi! I managed to do esc calibration, accelerometer calibration and radio calibration.
How ever i can’t do the compass calibration.
As i’m using linus mint 17, i can use the APM 2.0.18, next version require a lot of package update that mite breack the system.
From the console i can see that it gets 1 or 0 value each time. The APM don’t say that there’s no compass, the compenent shoul work.
i used mono and missionplanner with linux;
missionplanner calibration should work for compass (with on board calibration)!
Hi,
I tried with some android app and every time the compass calibration end with a message “not enough data”. Is there a way to calibrate the compass without the apmplanner ? I managed to do all other calibration (radio and accelerometer).
What is the best method to calibrate the compass (i have seen a lot of different method on youtube but i can’t get enough data)? What is the magnetometer i2c address ?
Hi,
I’m about to give up. I tried with 3 mission planner (android, linux, and windows) and the live calibration just doesn’t work. I have got a message : “Not enough data points to calibrate the compass”
I have noticed that i don’t get the image with the axes in the video : https://www.youtube.com/watch?v=CQjnwVFXhG0
Here is my i2cdetect log :
sudo i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – – – – – – – – – – – – –
10: – – – – – – – – – – – – – – – –
20: – – – – – – – – – – – – – – – –
30: – – – – – – – – – – – – – – – –
40: 40 – – – – – – – 48 – – – – – – –
50: 50 – – – – – – – – – – – – – – –
60: – – – – – – – – – – – – – – – –
70: – – – – – – – 77
Hi,
When you say Misson Planner, you are talking about the particular software, not GCS in general, correct?
Hi,
I used the apm planner 2.0.24 xenial 64, apm planner 2.0.24 win : http://firmware.eu.ardupilot.org/Tools/APMPlanner/. ON android an app called Tower (but there’s not live compass calibration).
Can you please try Mission Planner?
Hi,
I got those error code on the live calibration window :
compass 1 error
compass 2 error
compass 3 error.
The planner doesn’t get any data point… I think that the compass is dead…
What can i do now ?
I put 0 in the arming check (in the advanced param list). I configured the Alt hold accro and stailize modes…
But i think that get a +160€ flight controller that runs on a cortex A processor and be stuck with accro and stabilize is just so dissapointing… An atmega 328p could have do the job 
at the moment you should only use missionplanner and Onboard Mag Calibration for mag calibration!!
(as described in the docs https://docs.emlid.com/navio2/Navio-APM/ardupilot-tips/#onboard-calibraton )
Hi,
I have got a navio +.
And there’s in the navio + doc :
Further configuration
As other APM configuration procedures are very similar for most APM-running autopilot hardware, please use the APM documentation.
Thanks. I’ll take a look in the navio 2 doc to see if i can calibrate the compass with this method.
i didnt notice you’ve got a Navio+ - the statement for navio+ was correct and should be correct in the future again; i believe it’s just a software issue for current releases;
but yeah - it’s kinda misleading at the moment;
report if you’re succesful
I think that the compass is dead. I have sometimes bad compass health message. And when i clicked on start nothing happened.
Do i have to set pixhawk as type of board ?
Is it possible to fly without compass ?
possibly; do you have anything else connected to i2c?
here is a pic of what it looks like (thx @simonpmg)
https://community.emlid.com/uploads/default/original/2X/1/18f8d70ea925a9550dc6bd72cca2737e2707e296.jpg
MAG_CAL_SUCCESS only shows up when finished; before that there is no popup just a “id:” and several % numbers in the window in the lower right;
yes it’s possible; you can look up the flight modes which rely on compass on ardupilot’s hp! (eg stabilize doesn’t use compass)
No i don’t have any devices connected to i2c.
There’s no id or no % number. And on the first screen of the software i have a “bad compass health” message.
I’ll try the stabilize, althold and accro mode. So, i have an apm that can’t do apm :(!
What external compass breackout board are compatible with the navio + ?
are you using the beta image?
have you tried the other image as well to rule out any beta image with navio+ issues? ( i am not very familiar with the new beta image)
hmc5983 is a good choice!
I don’t think that i’m using a beta image. I’ll check.
For a quad X, on which pin do i have to connect front right, front lef right back and keft back motor for the navio + ?
