Search found 2465 matches

by arnaud
Thu Apr 22, 2021 10:04 am
Forum: Lighthouse positioning system
Topic: lighthousev2 get_bs_geometry is not working well
Replies: 5
Views: 302

Re: lighthousev2 get_bs_geometry is not working well

Can you explain in more details what works and what does not? Are you seeing the symptom I described in this other post for one of the deck? viewtopic.php?p=21928#p21928
by arnaud
Thu Apr 22, 2021 10:02 am
Forum: Lighthouse positioning system
Topic: [SOLVED] Updating firmeware getting stuck when updating lighthouse deck
Replies: 13
Views: 353

Re: Updating firmeware getting stuck when updating lighthouse deck

Hi, You might be hitting a bug that I tried to fix during the 2021.03 firmware development. The symptom was as follow: - When starting the Crazyflie using the power button, the lighthouse deck starts (the blue LED lit up) - When the Crazyflie restarts from bootloader to firmware more, ie. when it re...
by arnaud
Thu Apr 22, 2021 7:00 am
Forum: Support
Topic: 2 Crazyradio
Replies: 1
Views: 175

Re: 2 Crazyradio

Hi, The first number of the URI indicates what radio is being used. So, assuming your two Crazyflies are on channel 60 and 80 with different addresses you will be able to connect "radio://0/60/2M/E7E7E7E701" and "radio://1/80/2M/E7E7E7E702" to connect the two Crazyflie using the two radios. A couple...
by arnaud
Wed Apr 21, 2021 8:31 am
Forum: Developer Discussions
Topic: Assert failed at radiolink.c:164
Replies: 1
Views: 80

Re: Assert failed at radiolink.c:164

FreeRTOS does handle tasks based on priority, but the estimator is set as pretty high priority since it is the most important code in a flying platform, so it can starve the rest of the system. I am not sure this is what is happening there however, you should be hitting the watchdog in that case: th...
by arnaud
Mon Apr 19, 2021 1:00 pm
Forum: Loco Positioning System
Topic: STM32 driver install
Replies: 3
Views: 187

Re: STM32 driver install

A quick search shows that the cause is likely with your installation of Windows being damaged: https://github.com/pbatard/libwdi/issue ... -735964681. Can you try on another computer or another install (for example in a VM) to see if it fixes the problem.
by arnaud
Mon Apr 19, 2021 12:56 pm
Forum: AI-deck
Topic: Trigger a signal to take range measurement each time pic is taken
Replies: 1
Views: 242

Re: Trigger a signal to take range measurement each time pic is taken

Hi, I have not used much (ie. at all) the AI deck but I know pretty well the Crazyflie so I can try to help with some pointers. There is a UART connection between the Crazyflie and the GAP8 but unfortunatly in version 1.0 of the deck, only the way from the GAP8 to the Crazyflie work. On version 1.1 ...
by arnaud
Mon Apr 19, 2021 12:15 pm
Forum: Autonomous flight
Topic: Autonomous flight using wall following
Replies: 3
Views: 647

Re: Autonomous flight using wall following

Hi, Can you explain a bit more what work and what does not? Intuitively, your algorithm will make the Crazyflie collide with the wall since the Crazyflie is never able to get away from the wall, only closer. ps: Can you please use "code display" in the menu when writing your message for block of cod...
by arnaud
Fri Apr 16, 2021 11:36 am
Forum: Support
Topic: Logging more than 6 Parameters at once
Replies: 3
Views: 148

Re: Logging more than 6 Parameters at once

Sure! One added note: you can setup more than one log block, so the normal way to log more than 6 floats is to setup multiple log blocks. However, being able to log as much as possible in a single block is more efficient and can be more practical, so its nice FP16 finaly works all the way.
by arnaud
Fri Apr 16, 2021 11:32 am
Forum: Autonomous flight
Topic: Setting parameters when autonomous / set kalman state
Replies: 1
Views: 112

Re: Setting parameters when autonomous / set kalman state

I do not think this function was meant to be blocking. What is happening is that when you set a parameter from inside the Crazyflie, it sends a packet to the client with the new value. If no client is connected, the packet TX queues become full and so the function blocks until it can put its packet ...
by arnaud
Fri Apr 16, 2021 9:36 am
Forum: Support
Topic: Logging more than 6 Parameters at once
Replies: 3
Views: 148

Re: Logging more than 6 Parameters at once

This is a limitation of the log subsytem: one log block must be contained in one radio packet and the radio packets are 32bytes long, when removing timestamp and other required data there is about 27bytes available, so 6 float plus a 3 bytes. That said, the Crazyflie has a functionality to convert v...