Search found 1888 matches

by arnaud
Fri Mar 22, 2019 1:26 pm
Forum: Quadcopters
Topic: Can't get motion commander example to work
Replies: 2
Views: 25

Re: Can't get motion commander example to work

It is most likely that the firmware in your crazyflie was too old for these example. The examples assumes you are running the latest version of the Crazyflie firmware. Since I assume you have a Crazyradio, updating the firmware using the PC client is much quicker than using your iphone, see the gett...
by arnaud
Wed Mar 20, 2019 1:35 pm
Forum: Developer Discussions
Topic: usb0 or crazyradio connect have some different?
Replies: 3
Views: 60

Re: usb0 or crazyradio connect have some different?

This sounds like a bug. Do you have the latest version of the Crazyflie firmware an of the crazyflie lib? For communication it is important that the lib an the crazyflie firmware are at the latest version since it has been improved over time.
by arnaud
Wed Mar 20, 2019 1:30 pm
Forum: General discussions
Topic: Synchronize Multiple Log Blocks
Replies: 5
Views: 502

Re: Synchronize Multiple Log Blocks

@ranjeetkumar see my answer in the other thread viewtopic.php?f=2&t=3406&p=16330#p16356 and please avoid double-posting questions :).
by arnaud
Wed Mar 20, 2019 1:26 pm
Forum: Bitcraze
Topic: Pressure sensor on crazyflie 2.0
Replies: 6
Views: 124

Re: Pressure sensor on crazyflie 2.0

You can use the Crazyflie client to look at the log toc, in the client you can click on "view/tabs/Log TOC". The pressure is available in the variable "baro.pressure".
by arnaud
Wed Mar 20, 2019 10:31 am
Forum: General discussions
Topic: spinning the crazyflie on the Z axis
Replies: 1
Views: 72

Re: spinning the crazyflie on the Z axis

It is possible for the Crazyflie to spin around Z, for that you need to send a setpoint with a yaw rate. The way to do it depends a lot of your use-case, if you are using the qualisys tab, that can be done by modifying the source code of the function you are using in the tab. One note though: the PI...
by arnaud
Wed Mar 20, 2019 10:25 am
Forum: General discussions
Topic: Sensor Calibration - M1 is keep blinking
Replies: 2
Views: 40

Re: Sensor Calibration - M1 is keep blinking

Hi, If M1 blinks red continiously this is good, this is the heartbeat LED. The rate of blinking increase when the sensors are calibrated. If there is a selftest problem, M1 will blink in burst then the self test has failed. You can see short video showing the two cases in the getting started documen...
by arnaud
Wed Mar 20, 2019 9:00 am
Forum: Developer Discussions
Topic: Scaling Commanded Thrust as a Function of Height
Replies: 1
Views: 32

Re: Scaling Commanded Thrust as a Function of Height

The interesting part of the code for that is the stabilizer loop, it is the loop that runs the controllers and eventually controls the motors: https://github.com/bitcraze/crazyflie-firmware/blob/master/src/modules/src/stabilizer.c#L190. You can add a function there that modify the thrust in the cont...
by arnaud
Wed Mar 20, 2019 8:30 am
Forum: Bitcraze
Topic: Pressure sensor on crazyflie 2.0
Replies: 6
Views: 124

Re: Pressure sensor on crazyflie 2.0

The ROS Crazyflie driver has a way to setup log blocks in the launch file, see existing lauch files for example of how this is achieve: https://github.com/whoenig/crazyflie_ro ... ch#L16-L20. The log will be published as a ros topic.
by arnaud
Mon Mar 18, 2019 1:33 pm
Forum: Bitcraze
Topic: Pressure sensor on crazyflie 2.0
Replies: 6
Views: 124

Re: Pressure sensor on crazyflie 2.0

Hi, You can use the log subsystem to acquire the pressure sensor value at any rate up to 100Hz. If you are using the client you can setup a new log block in "settings/logging configuration" and if you are using the python lib there is a couple of example in the example folder showing how to use the ...
by arnaud
Mon Mar 18, 2019 1:21 pm
Forum: Support
Topic: CF2 able to be bootloaded but cannot connect to CR
Replies: 2
Views: 66

Re: CF2 able to be bootloaded but cannot connect to CR

What URI are you seeing when trying to connect? If you are seeing radio://0/0/2M then this is the bootloader and you need to reboot your Crazyflie. If you see something like radio://0/80/250K then this is the firmware, and you might have communication problem for example due to strong wifi signals. ...