Search found 37 matches

by giandoman
Thu Oct 26, 2017 8:31 am
Forum: Developer Discussions
Topic: How to read the kalman estimated position and use it in the code
Replies: 2
Views: 2025

How to read the kalman estimated position and use it in the code

Hello everybody i'm starting to understand better how the CF work and students here in L'Aquila also seem to appreciate labs with these drones. I want to do a further step forward trying to understand how to read sensor data (particularly position estimation or z value from the flow deck). I want to...
by giandoman
Thu Oct 26, 2017 7:49 am
Forum: General discussions
Topic: Flow deck suggestions
Replies: 10
Views: 6311

Re: Flow deck suggestions

Hum, what does happen? With the flow it should 'work'. Actually I just tried with this sequence: sequence = [ (0, 0, 0.15, 0), (0, 0, 0.3, 0), (0.5, 0, 0.3, 0), (0.5, 0.5, 0.3, 0), (0, 0.5, 0.3, 0), (0, 0, 0.3, 0), ] Takeoff is an issue, I get it to take-off right about 3 times in 5, I added a step...
by giandoman
Wed Oct 25, 2017 12:13 pm
Forum: General discussions
Topic: Flow deck suggestions
Replies: 10
Views: 6311

Re: Flow deck suggestions

With the flow, the kalman filter will still keep track of and output an absolute position that you can use, though this absolute position will drift over time. The amount of drift should be very small in good conditions but there is no way to know the precision. If you want to recalibrate the absol...
by giandoman
Tue Oct 24, 2017 7:29 am
Forum: General discussions
Topic: Flow deck suggestions
Replies: 10
Views: 6311

Re: Flow deck suggestions

VX and VY are velocity in the body referential. yaw_rate is the rate at witch the yaw is turning in degree per second. So if you set VX to 0.5 and have a positive yaw_rate the Crazyflie will go forward turning right. If you keep the yaw_rate at 0, you can send "move 0.5m/s on X and 1m/s on Y&q...
by giandoman
Fri Oct 20, 2017 2:57 pm
Forum: General discussions
Topic: Flow deck suggestions
Replies: 10
Views: 6311

Re: Flow deck suggestions

arnaud wrote: Thu Oct 19, 2017 1:37 pm Hi, the send_hover_setpoint function takes vx, vy, yaw_rate and Z, isn't it what you are looking for?
vx and vy are the speeds along the x and y axis right? I'm looking for something like "move 1 meter along x and 2 meters along y"
The yaw rate is the yaw angle right?
Gianni
by giandoman
Thu Oct 19, 2017 8:52 am
Forum: General discussions
Topic: Flow deck suggestions
Replies: 10
Views: 6311

Flow deck suggestions

Hello everybody i just received my flow deck and i'm really excited about that. It works very good. I had a look at the examples and i saw that the only main function that is used to move the drove is the function commander.send_hover_setpoint. It's clear how to use it but my question is: Is there a...
by giandoman
Tue Oct 10, 2017 7:25 am
Forum: General discussions
Topic: Crazyflie can't calibrate
Replies: 7
Views: 4051

Re: Crazyflie can't calibrate

arnaud wrote: Mon Oct 09, 2017 11:27 am Hi,

It could be. What is the text displayed in the console when connecting the the Crazyflie. You can see the console by opening the tab with view/tabs/Console.
Thanks Arnaud! I'll check later and I'll post the message of the console.
Bye
Gianni
by giandoman
Fri Oct 06, 2017 2:06 pm
Forum: General discussions
Topic: Crazyflie can't calibrate
Replies: 7
Views: 4051

Crazyflie can't calibrate

Hello...again i have one crazyflie drone that has a strange issue: it starts regularly but the red led that should blink each second after the calibration, actually blinks each 2 seconds. As it can't initialize properly. Within the client i can connect with the crazyradio PA but i can't see any outp...
by giandoman
Thu Oct 05, 2017 5:28 pm
Forum: Developer Discussions
Topic: Where to put the file config.mk
Replies: 3
Views: 2410

Re: Where to put the file config.mk

You need to put the config.mk file in the same folder, in tools/make. For all modification you need to "make clean" to make sure you a building all the files with the new config. If you have an of-the-shelf Z-Ranger deck you do not need to modify anything though. Just make sure you have t...
by giandoman
Thu Oct 05, 2017 10:20 am
Forum: Developer Discussions
Topic: Where to put the file config.mk
Replies: 3
Views: 2410

Where to put the file config.mk

Hello, again another newbie question. I'm sorry about that :D I'm enabling the zrange so i downloaded the config.mk file but i'm not sure that by putting it in the same folder of the makefile file works. I checked also this topic https://forum.bitcraze.io/viewtopic.php?f=6&t=2563&p=12975&...