Search found 186 matches

by justinleeyang
Thu Mar 08, 2018 9:40 am
Forum: Loco Positioning System
Topic: crazyflie uwbTask logic
Replies: 6
Views: 2873

Re: crazyflie uwbTask logic

Got it! if I want to force one mode, how to define?
by justinleeyang
Thu Mar 08, 2018 7:01 am
Forum: Loco Positioning System
Topic: crazyflie uwbTask logic
Replies: 6
Views: 2873

crazyflie uwbTask logic

hi, arnaud: I don't understand the main function of the following code: // Change and init algorithm uppon request // The first time this loop enters, currentRangingMode is set to auto which forces // the initialization of the set algorithm if (algoOptions.rangingMode == lpsMode_auto) { // Auto swit...
by justinleeyang
Wed Jan 17, 2018 7:57 am
Forum: Loco Positioning System
Topic: dwm1000 transmit miss the sequence number issue
Replies: 4
Views: 2276

Re: dwm1000 transmit miss the sequence number issue

We also know that the DW1000 is very sensitive to power supply quality,
we also measure the power supply 3.3V ripple, find about 160mv jitter. maybe result in losing packet.
by justinleeyang
Fri Jan 12, 2018 1:24 am
Forum: Loco Positioning System
Topic: dwm1000 transmit miss the sequence number issue
Replies: 4
Views: 2276

dwm1000 transmit miss the sequence number issue

hi, we find that tag0 range with anchor1, anchor1 maybe miss the packet, lost probability about 1%, for example: sequence number 1: range pass sequence number 2: range pass sequence number 3: range pass sequence number 4: range pass sequence number 5: range fail, anchor no ack answer sequence number...
by justinleeyang
Wed Jan 03, 2018 12:39 pm
Forum: Loco Positioning System
Topic: lps node sniffer mode STDOUT_FILENO output data?
Replies: 1
Views: 1510

lps node sniffer mode STDOUT_FILENO output data?

hi,

sniffer mode , we see the STDOUT_FILENO, stm32f072 can print data to local file ?
by justinleeyang
Mon Dec 11, 2017 2:45 pm
Forum: Loco Positioning System
Topic: TDoA V2 improvement?
Replies: 3
Views: 2269

Re: TDoA V2 improvement?

hi, arnaud:

I want to know more about TDoA V2 method.:) , or how much time to release it?
by justinleeyang
Thu Nov 30, 2017 3:51 pm
Forum: Loco Positioning System
Topic: auto place the anhor, no need measure coordinate?
Replies: 4
Views: 2411

Re: auto place the anhor, no need measure coordinate?

hi, arnaud:

ok, have you known more method to achieve it ?
by justinleeyang
Mon Nov 27, 2017 3:07 pm
Forum: Developer Discussions
Topic: crazyflie2.0 and crazyradio pa range only 1m, why?
Replies: 1
Views: 1382

crazyflie2.0 and crazyradio pa range only 1m, why?

hi,

we already try the BLE range about 10m, but today use the crazyradio pa only 1m, the connection abort. why? how to test the crazyradio pa tx power and rx rssi?