I’m working with my teenage son to build a quad using a Navio2. We wanted to try the example code for some of the sensors before completing our build. Some of the examples seem like they should run with just the Navio2 and a Raspberry Pi 2 (no other hardware attached).
However, we are having mixed results with the different example code (tried both C++ and Python):
Can anyone verify that we should be able to run these examples without any other hardware attached?
C++ - runs successfully
Python - will not run…
pi@navio:~Navio2/Python $ sudo python Barometer.py
Traceback (most recent call last): File "Barometer.py", line 13, in <module> import navio.ms5611 File "/home/pi/Navio2/Python/navio/ms5611.py", line 31, in <module> from smbus import SMBus ImportError: No module named smbus
C++ - partial success (changes color between red/yellow/green, no cyan/magenta/blue).
Python - same results
Python - will not run
*C++ - will not run*
pi@navio:~/Navio2/C++/Examples/AccelGyroMag $ sudo ./AccelGyroMag -i mpu
Selected: MPU9250 Sensor not enabled
Rebooting has not produced any different results.
In addition, we attempted to run ArduCopter-quad, but it doesn’t appear to even start up.
For reference, we completed these setup steps following the Docs instructions:
Docs » Navio2 with APM autopilot » Hardware setup
Attaching Navio2 to a Raspberry Pi (used a Raspberry Pi 2 Model B and provided standoff hardware)
Powering Navio2 (currently powered with microUSB, 5V 1A supply)
No other hardware connections made.
Docs » Navio2 with APM autopilot » Raspberry Pi configuration
Downloading configured Raspbian image
Writing image to SD card
SD card set up with emlid-raspberrypi2-raspbian-navio2-20160212.img.
Configuring Wi-Fi access
Successful, able to SSH via Wi-Fi.
Docs » Navio2 with APM autopilot » APM installation and running
wget 'http://files.emlid.com/apm/apm-navio2_3.3.2-rc2-beta-1.2_armhf.deb' -O apm-navio2.deb sudo dpkg -i apm-navio2.deb
Installed APM Planner from http://ardupilot.com/downloads/?category=35 on both Ubuntu 14.4 and Windows10 machines.
Attempted to run Arducopter with different parameters, but it doesn’t appear to start.
pi@navio:~ $ sudo ArduCopter-quad -A udp:192.168.1.19:14550 Raspberry Pi 2 with BCM2709! No INS backends available
pi@navio:~ $ sudo ArduCopter-quad Raspberry Pi 2 with BCM2709!
Init APM:Copter V3.4-dev (cce4f12e)
Free RAM: 262144
FW Ver: 120
load_all took 13us
/sys/kernel/rcio/adc/ch255 not opened: No such file or directory0 0 0 ▒ Q}▒No INS backends available
HMC5843: Could not detect version
MPU9250: unexpected WHOAMI 0xFF