Search found 11 matches

by tungnx94
Fri Aug 24, 2018 3:22 pm
Forum: Bitcraze
Topic: Does the flow deck work on a Big Quad?
Replies: 10
Views: 982

Re: Does the flow deck work on a Big Quad?

We are not clear how to do this step:

2. Change HW ChipSelect. Easiest I think would be to move it (cut trace and solder patch) to IO1 on the flow deck.

Can you elaborate a bit more ?
by tungnx94
Thu Aug 16, 2018 7:12 pm
Forum: Support
Topic: Reconnect SD card pins to the new SPI port
Replies: 1
Views: 273

Reconnect SD card pins to the new SPI port

Issue: I need the flowdeck and sd-card deck to work together. Currently the official firmware doesn't allow that. shushuai3 has found a way to fix this problem (https://github.com/bitcraze/crazyflie-firmware/issues/270#issuecomment-413371640). However as instructed I still need to "... change the sd...
by tungnx94
Wed Aug 15, 2018 4:57 pm
Forum: Bitcraze
Topic: SD Card Deck and Flow Deck not working together
Replies: 8
Views: 1503

Re: SD Card Deck and Flow Deck not working together

Someone found a quick fix on github " ... I change the SD port from spi1 to spi3. After changing the related driver as well as DMA stream, it can log for any long time while flow deck is working ... " Which is good news. However I still haven't managed how to do this in code (i.e change which code l...
by tungnx94
Thu Jun 07, 2018 10:40 am
Forum: Developer Discussions
Topic: Repair broken battery connector on board
Replies: 1
Views: 266

Repair broken battery connector on board

Hello,

after a crash my battery connector is cut at soldering point. The drone therefore cannot receive power. Image I'm very inexperienced in electronics stuff, so I would be very glad for some detailed instructions as what to do, what tools do I need.

Thanks all.
by tungnx94
Thu Apr 19, 2018 10:35 am
Forum: Developer Discussions
Topic: Flowdeck-Functionality
Replies: 3
Views: 470

Re: Flowdeck-Functionality

I suppose the distance to the floor is saved in the ranging log variables ? Here are 8 distances and 8 pressures values measured.
by tungnx94
Thu Apr 19, 2018 10:27 am
Forum: General discussions
Topic: Logging custom variables using sdcard
Replies: 3
Views: 538

Re: Logging custom variables using sdcard

So there is not yet the variables to measure linear velocity, but it can be approximated by integrating the linear acceleration right ?
by tungnx94
Fri Apr 06, 2018 11:43 am
Forum: Developer Discussions
Topic: Flowdeck-Functionality
Replies: 3
Views: 470

Flowdeck-Functionality

Hello, we are working on a project. Our goal is to build a small autonomous hovering system using the flow deck. To do this we need to understand the impact of flow deck on the original system. What extra information does it deliver that made hovering possible ? And where is this information saved (...
by tungnx94
Fri Apr 06, 2018 11:29 am
Forum: General discussions
Topic: Logging custom variables using sdcard
Replies: 3
Views: 538

Logging custom variables using sdcard

I'm trying logging data with micro sd-card deck. Currently I came across these questions (all related to logging on sd card of course) 1/ Is it possible to log custom variables without modifying the firmware ? If so, how to proceed. I looked at the scripts https://github.com/bitcraze/crazyflie-firmw...
by tungnx94
Thu Apr 05, 2018 11:37 am
Forum: Developer Discussions
Topic: Controlling with joystick/gamepad using python-client
Replies: 5
Views: 595

Re: Controlling with joystick/gamepad using python-client

I'm studying the joystick input subroutine. The code is easy enough to understand. There is one thing I haven't got though: what is the role of the pysdl2.py file ?
by tungnx94
Wed Apr 04, 2018 2:50 pm
Forum: Developer Discussions
Topic: Controlling with joystick/gamepad using python-client
Replies: 5
Views: 595

Re: Controlling with joystick/gamepad using python-client

Hi arnaud,
it I want to study the client code to "copy" the way it handles joystick input, which files should I look into ?
Really appreciate the help.