Bitcraze Forums

if you have access to a print shop, it might be simpler/cheaper to print something like this . works well in the correct scale. use high contrast.
https://medialoot.com/blog/seamless-rock-textures/

update 2: it works! the only thing is that the rate is ~1.5KB/sec (both radio and USB). in the CPP implementation by whoenig it was ~3 times faster.
anyway I am considering making some improvements for performance, any suggestions welcome.
the modified code is posted as a PR in the cflib github

just a quick update, after some tests with crazyflie_tools, downloading using radio or USB does not matter much in terms of speed, on USB I get 4-9KBps and on radio around 7KBps. I started writing the python functions to allow downloading and will update again.

Thanks for wyour reply whoenig! I wrote the post and found out about your answer only later.. :oops: I have a few specific questions after studying your answer- first - I understand the usddeckRead method used in the firmware is relevant only for an active logging session which was stopped but the d...

retrying if anyone has insights.. I dug a bit deeper to find - enum MemoryType { MemoryTypeEEPROM = 0x00, MemoryTypeOneWire = 0x01, MemoryTypeLED12 = 0x10, MemoryTypeLOCO = 0x11, MemoryTypeTRAJ = 0x12, MemoryTypeLOCO2 = 0x13, MemoryTypeLH = 0x14, MemoryTypeTester = 0x15, MemoryTypeUSD = 0x16, // Cra...

Hello. I noticed that in crazyflie_cpp (equivalent of cflib, the base for crazyflie_ros) there is a function that downloads the latest log file from the SD card over radio / usb. I was looking for the equivalent method in cfLib , if there is any. if not, where should I start (interfaces) when trying...

will be happy to hear if there is any update. thx!

update: after resetting, if using flow sensor, I get the message - "Error while initializing the PMW3901 sensor"

So currently I'm abandoning this method.

Thanks for the detailed reply.
I am trying to set 2 parameters at about 4-5 hz. (so 8-10 updates /sec)
I will try to look into custom CRTP packet , it seemed intimidating at first. Would love to know it there is a tutorial or example somewhere.

Hello I send data to my app during flight using parameters ( I know it is not the best method but it is the simplest ) Sometimes for some reason parameters are not sent correctly. So I use the callbacks - cf.param.add_update_callback(...) to make sure parameters are updated. But it can be a bit slow...