Search found 17 matches

by leonana69
Wed Jul 22, 2020 3:51 am
Forum: Quadcopters
Topic: CF Bolt schematic
Replies: 1
Views: 140

CF Bolt schematic

I see that in the cf bolt schematic, the STM_SWIO and STM_SWCLK are not connecting to the NRF51822, so how can the RF chip upload the firmware?
by leonana69
Tue Jun 02, 2020 5:57 am
Forum: Bitcraze
Topic: Oscillator for NRF51822
Replies: 1
Views: 248

Oscillator for NRF51822

Hi, I'd like to know the specific type of X3 16MHz oscillator. It seems to need power, but two terminals are connected to GND.
by leonana69
Fri Apr 17, 2020 2:49 pm
Forum: Bitcraze
Topic: Make a more powerful but still tiny drone.
Replies: 27
Views: 5402

Re: Make a more powerful but still tiny drone.

@leonana69 may you share your pid and thrust base values so I can compare to the crazyflie and make the right decision for my new quad? The thrustBase is 32000 and thrustMin is 20000. For height control PID, the PID_Z_RATE_KP/KI/KD are 7.0/2.0/0.3, the PID_K_KP/KI/KD are 10.0/2.0/1.0. I didn't chan...
by leonana69
Tue Mar 31, 2020 11:57 pm
Forum: Quadcopters
Topic: Sensor BMI088 and BMP388
Replies: 2
Views: 1122

Re: Sensor BMI088 and BMP388

The reason for that is that it might be possible to build a very small and powerful quadrotor using the Bolt. Then the latency between the sensor readings and motor output will be more important. The SPI has lower latency and therefore this was chosen. It adds some possible compatibility issues tho...
by leonana69
Tue Mar 31, 2020 12:46 am
Forum: Quadcopters
Topic: Sensor BMI088 and BMP388
Replies: 2
Views: 1122

Sensor BMI088 and BMP388

I wonder is there any reason for changing I2C to SPI DMA way of reading sensors data in cf bolt?
by leonana69
Tue Mar 31, 2020 12:40 am
Forum: Bitcraze
Topic: Make a more powerful but still tiny drone.
Replies: 27
Views: 5402

Re: Make a more powerful but still tiny drone.

Very nicely done! Did you also get the flow deck to work OK? I think there are some parameters that needs to be changed/tuned to compensate for the different inertia, weight and thrust. Yes, I re-tuned the PID controller, changed the thrustBase in the position_controller_pid.c to match the current ...
by leonana69
Fri Mar 06, 2020 9:29 pm
Forum: Bitcraze
Topic: Make a more powerful but still tiny drone.
Replies: 27
Views: 5402

Make a more powerful but still tiny drone.

These days I've been working on somehow combine these two drones: https://cdn.shopify.com/s/files/1/1285/4651/products/CineBee-75HD-with-RuncamSplitNano_4_-1000x1000_700x700.jpg?v=1579823606 and https://www.bitcraze.io/images/Crazyflie2.0/Crazyflie2.0-585px.JPG . The first is iFlight Cinebee, it's v...
by leonana69
Wed Feb 12, 2020 10:11 pm
Forum: Off topic
Topic: Test for sending image
Replies: 2
Views: 5841

Re: Test for sending image

Image
by leonana69
Wed Feb 12, 2020 10:10 pm
Forum: Off topic
Topic: Test for sending image
Replies: 2
Views: 5841

Test for sending image

Image
by leonana69
Fri Jan 31, 2020 3:28 pm
Forum: Bitcraze
Topic: [RESOLVED] Changing battery voltage
Replies: 9
Views: 2483

Re: Changing battery voltage

tobias wrote: Fri Jan 31, 2020 8:36 am After checking the datasheet a bit more the operating voltage range is 4.35V to 6.4V, thus it will not regulate the voltage above ~6.4V so It looks like it can not be powered by more then that.
bq24075-vop-range.png
OK, I'd rather using a external 5V LDO instead.