Search found 186 matches

by justinleeyang
Tue Mar 22, 2016 3:51 am
Forum: Developer Discussions
Topic: download the lps-node-firmware, and want to git the my account
Replies: 1
Views: 1673

download the lps-node-firmware, and want to git the my account

Hi,

I am the beginner about github, I already add some code about wifi mode for lps-node-firmware, I want to upload my github code,
how to do it? please help
by justinleeyang
Thu Mar 10, 2016 3:22 am
Forum: Developer Discussions
Topic: DWM1000 DS-TWR method calculate distance method?
Replies: 5
Views: 8569

DWM1000 DS-TWR method calculate distance method?

Hi, Reference your github lps-node-firmware, print the distance value is negative number, for example, -105mm,-136mm. we see that you measure the distance with the DS-TWR method follow as: Tag send poll -> Anchor receive poll, then answer -> Tag reveive answer, then send final -> Anchor reveive fina...
by justinleeyang
Tue Mar 08, 2016 3:43 am
Forum: Developer Discussions
Topic: STM32F072 control DWM1000 issue
Replies: 1
Views: 1867

STM32F072 control DWM1000 issue

Refrence your Lps-node-firmware code to control DWM1000. the PB12 connect to DWM1000 reset? /*Configure GPIO pin : PB12 */ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_12, 1); GPIO_InitStruct.Pin = GPIO_PIN_12; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Spee...
by justinleeyang
Tue Mar 01, 2016 2:16 am
Forum: Developer Discussions
Topic: Share the DWM1000 node Schematic?
Replies: 1
Views: 1631

Share the DWM1000 node Schematic?

Hi,All:
can you share the DWM1000 node Schematic? we want to reference it.
Thanks!
https://wiki.bitcraze.io/projects:lps:index
by justinleeyang
Wed Jan 13, 2016 10:37 am
Forum: Developer Discussions
Topic: about _param_start and _param_stop
Replies: 0
Views: 2194

about _param_start and _param_stop

Hi, we are learning the crazyflie-firmware, About the paramsLen, the code as follow: //These are set by the Linker extern struct param_s _param_start; extern struct param_s _param_stop; ...... paramsLen = &_param_stop - &_param_start ...... I don't understand the code, why? the Linker set th...
by justinleeyang
Mon Dec 28, 2015 5:27 am
Forum: Developer Discussions
Topic: crazyflie-firmware sensfusion6GetEulerRPY funtion issue
Replies: 0
Views: 1995

crazyflie-firmware sensfusion6GetEulerRPY funtion issue

Hi, All: I am interesting in the crazyflie2.0, so try analyze your code. the funtion get the Euler form quatertion: void sensfusion6GetEulerRPY(float* roll, float* pitch, float* yaw) { float gx, gy, gz; // estimated gravity direction gx = 2 * (q1*q3 - q0*q2); gy = 2 * (q0*q1 + q2*q3); gz = q0*q0 - q...