Search found 1334 matches

by arnaud
Fri Jan 19, 2018 9:48 am
Forum: Autonomous flight
Topic: Waypoint following using the Crazyflie 2.0
Replies: 2
Views: 30

Re: Waypoint following using the Crazyflie 2.0

What you need is to get the autonomous sequence script working, it will fulfill your purpose. So what we need to solve is why isn't it working. The way it is supposed to work: 1 - You start your Crazyflie in the LPS system, facing X 2 - You launch the autonomous sequence script 3 - The script connec...
by arnaud
Fri Jan 19, 2018 9:41 am
Forum: Quadcopters
Topic: Lost on coding
Replies: 3
Views: 33

Re: Lost on coding

There is parameters that can be used in the Crazyflie to set the PWM values of motors: pwm.png If you want to set parameters from your own script you can adapt the basicparam example: https://github.com/bitcraze/crazyflie-lib-python/blob/master/examples/basicparam.py To get started with coding in py...
by arnaud
Fri Jan 19, 2018 9:24 am
Forum: Developer Discussions
Topic: Crazyflie cannot connected through ROS after update
Replies: 2
Views: 9

Re: Crazyflie cannot connected through ROS after update

Hi,
this sounds more like a Crazyradio problem, did you update the Crazyradio as well when the first problem occurred?
by arnaud
Fri Jan 19, 2018 9:14 am
Forum: Loco Positioning System
Topic: trajectory logging for robot car running ROS
Replies: 2
Views: 35

Re: trajectory logging for robot car running ROS

Carrying nodes on your cars and transmitting the data to ROS with the other telemetry could work. Sorry for the quite messy answer but I have tried to pack as many info as I though could be useful for you. A couple of things though about using the node as a car: the node does not have the power or t...
by arnaud
Fri Jan 19, 2018 8:55 am
Forum: Loco Positioning System
Topic: TDOA with only DW1000 Problem
Replies: 2
Views: 20

Re: TDOA with only DW1000 Problem

Hi and welcome Eren, if I understand your message well, you say that you are not using the loco positioning code. If so, what are you using instead? These kind of delays could come from a variety of reason and not knowing more about your setup makes it very hard to find what is happening. What hardw...
by arnaud
Fri Jan 19, 2018 8:51 am
Forum: Loco Positioning System
Topic: Tdoa positioning is slow
Replies: 2
Views: 30

Re: Tdoa positioning is slow

If you are using the Crazyflie kalman filter without feeding any accelerometer and gyroscope input, I could expect it to not behave very well since it is designed and tuned to use accelerometer/gyro. If you only want position from the UWB you could use a gradient descent or particle filter algorithm...
by arnaud
Thu Jan 18, 2018 10:24 am
Forum: Developer Discussions
Topic: Adding an extra DDECK_FORCE to config.mk [SOLVED]
Replies: 8
Views: 66

Re: Adding an extra DDECK_FORCE to config.mk [SOLVED]

No there is no hard limit on the number of I2C devices you can access. Two red leds means a hard-fault condision or assert very early in the boot process. It would be useful to find where it blocks. If you are starting tasks in both your drivers it could be a memory problem, you could try to increas...
by arnaud
Thu Jan 18, 2018 9:06 am
Forum: Developer Discussions
Topic: Adding an extra DDECK_FORCE to config.mk [SOLVED]
Replies: 8
Views: 66

Re: Adding an extra DDECK_FORCE to config.mk [SOLVED]

Do you mean merging the DECK_FORCE1 hack in?

If so, I can agree that it is better than nothing at all. I still would like to fix it in a cleaner way (with colon separated name for example), but if you pull request the hack fix I will merge it :-).
by arnaud
Thu Jan 18, 2018 8:45 am
Forum: Quadcopters
Topic: Lost on coding
Replies: 3
Views: 33

Re: Lost on coding

Hi and welcome!

Can you please explain what you are trying to achieve and what is your current status?
by arnaud
Wed Jan 17, 2018 12:32 pm
Forum: Developer Discussions
Topic: Adding an extra DDECK_FORCE to config.mk [SOLVED]
Replies: 8
Views: 66

Re: Adding an extra DDECK_FORCE to config.mk

Hi, There is no way to do it in the current code. I wanted the syntax "CFLAGS += -DDECK_FORCE=TSL2561Deck,bcOA" to work but I never had time to implement it (string splitting in C isn't very funny to work with ....). One way I have used previously was to hack-in a new variable DECK_FORCE1 by copy pa...