ModalAI Forum

I'mt trying to use a multiple camera streaming because I want to use the Hires to take pictures and the stereo cameras to calculate the distance, I tried to use the dfs service but couldn't obtain the distances using code, if any one know how to obtain the sensor data using python or to do the multiple streaming I would appreciate it

Im trying to update the mavsdk library and to install the serial library

Does anyone now how to do it?

How can I upgrade the mavsdk library, I want to use the distance sensor to measure the value of the stereo camera, is there any other way to obtain the distance value of the stereo cameras, so I can use it in a python code?

I tried to do it with adb shell but I didn't really understand how to do it so I'm trying to do it through wifi

voxl:~$ cd  
.cache/         .config/        .profile.d/     .ros/           .ssh/           codigos_python/
voxl:~$ cd /data/
voxl:/data$ ls
FTM_AP             dnsmasq_d.leases  mobileap_cfg.xml      volumes
adb_devid          docker            modalai               voxl-docker-mavsdk-python-master
audio              graph             network               voxl-docker-mavsdk-python-master.tar
build-image.sh     iproute2          overlay               voxl-docker-mavsdk-python-master.tar.gz
configs            l2tp_cfg.xml      persist               voxl-docker-mavsdk-python-master.tgz
containers         linkgraph.db      repositories-overlay  voxl-logger
data               logs              tmp                   voxl-mavsdk-python-v1-1-placa2.tar
db                 lost+found        tombstones            voxl-suite-offline-packages
dhcpcd-wlan0.info  misc              trust                 web_root
dnsmasq.conf       mjrn              usb
voxl:/data$ scp /data/voxl-mavsdk-python-v1-1-placa2.tar dron@192.168.8.11:~/home/Desktop/Dron

Can someone help me?

@tom Thanks

@tom

@tom Oh okay, let me try

I'm following this guide: https://docs.modalai.com/flight-core-pwm-esc-calibration/#procedure and I should be able to install a library on voxl, I'm connected in station mode, but I don't now what else to do

@tom I was able to pug the hardware to the expansion board that goes to the j13 port of the voxl flight,

lsusb the one im using is the Bus 001 Device 002: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter

the success connection of the hardware

the setup

@tom the one included with m500 i think is the flight core v1, I'm currently using the expansion board that was included with the drone and I was able to detect the usb port, but know I need to install the serial library in the drone but I don't know how to install python libraries

I currently made a code to emulate a distance sensor, and I can read the usb port of my laptop to get the data of a nodemcu and a potentiometer, I want to try this inside the drone, so I can see if using a ultrasonic sensor is viable, I don't have the necessary cable at the moment to connect the nodemcu to the J10 port that has i2c and uart communication
this is my code

import serial
ser = serial.Serial('/dev/ttyUSB0')
print(ser.name)

while True:
 line = ser.readline()
 decoded_data = line.decode('utf-8')
 print(decoded_data)

Does anyone know if this would work?

I'm trying to use the obstacle avoidance for a proyect but I got some errors, the more recent one is this one

I try following this guide:https://docs.modalai.com/voxl-vision-px4-collision-prevention-0_9/
But I couldn't get through this part: Debugging Collision Prevention

But even though I decided to enable the voa to qgc and my drone keeps connecting and disconnecting and when I activate the obstacle avoidance its says I have an error in the pre arm check and the obstacle avoidance it's not ready

I enable the dfs service so I can keep my drone at a certain distance during a proyect, but when I was trying to arm the drone, the qgc show me the alert avoiding system not ready pre-arm check failed, and I noticed that the configuration inside the drone said "send voa to qgc false", and then I change it but it didnt affect the message

QGC_main

My stereo cameras aren't working and y can configure the cameras on the m500 configuration, only hires and tracking

@Eric-Katzfey Now that you mention that posibility, hoy can I send data through i2c?

Does anyone know if its possible to communicate a ultrasonic sensor directly to the voxl board ?

@tom Which one

I'll be flying the drone in Mexico

I want to know the right model for the drone

@tom @Chad-Sweet

first we detected this problem

then we followed this topic, then when we checked the vi extrinsics.conf ith showed us the following info

can someone help @tom