@Moderator Any idea where in the code i would do that? Trying to understand the code but it is a little confusing, a lot of your variables are initialized with pass through values.

Hello I was just trying to calibrate the 4 in 1 ESC and it caught on fire! Why did this happen? Can you guys replace it? I am so confused.

I'm trying to Calibrate my 4 in 1 ESCs. I run the command listed here https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-esc/-/blob/master/voxl-esc-tools/calibration.md. At the end, no calibration parameters file is printed, only error. How can i fix this to get the parameters file so i may upload it through the Voxl with this command ./voxl-esc-upload-params.py --params-file ../voxl-esc-params/<params_file>.xml to successfully calibrate the ESCs?

Thank You

ERROR IS BELOW:

./voxl-esc-calibrate.py --id 0 --pwm-min 10 --pwm-max 95 --pwm-step 3 --pwm-step-duration 0.7
Detected Python version : 3.6.9 (default, Mar 10 2023, 16:46:00)
[GCC 8.4.0]
Found voxl-esc tools bin version: 1.4
VOXL Platform: M0054
Detected RB5 Flight, VOXL2 M0054 or M0104!
INFO: Scanning for ESC firmware: /dev/slpi-uart-2, baud: 2000000
Sending library name request: libslpi_qrb5165_io.so
Received standard error event 2
Sending initialization request
INFO: ESC(s) detected on port: /dev/slpi-uart-2, baud rate: 2000000
WARNING:
This test requires motors to spin at high speeds with
propellers attached. Please ensure that appropriate
protective equipment is being worn at all times and
that the motor and propeller are adequately isolated
from all persons.

For best results, please perform this test at the
nominal voltage for the battery used.

Type "Yes" to continue: yes

POW: 0, RPM: 1353.00, Voltage: 15.79V, Current: 0.05A
POW: 0, RPM: 1369.00, Voltage: 15.79V, Current: 0.05A
POW: 0, RPM: 1385.00, Voltage: 15.79V, Current: 0.02A
POW: 0, RPM: 1419.00, Voltage: 15.79V, Current: 0.07A
POW: 0, RPM: 1419.00, Voltage: 15.79V, Current: 0.07A
POW: 0, RPM: 1453.00, Voltage: 15.79V, Current: 0.02A
POW: 0, RPM: 1453.00, Voltage: 15.79V, Current: 0.02A
POW: 0, RPM: 1486.00, Voltage: 15.79V, Current: 0.17A
POW: 0, RPM: 1486.00, Voltage: 15.79V, Current: 0.17A
POW: 0, RPM: 1499.00, Voltage: 15.79V, Current: 0.02A
POW: 5, RPM: 1569.00, Voltage: 15.79V, Current: -0.23A
POW: 10, RPM: 969.00, Voltage: 15.79V, Current: -0.02A
POW: 10, RPM: 969.00, Voltage: 15.79V, Current: -0.02A
POW: 10, RPM: 928.00, Voltage: 15.79V, Current: 0.12A
POW: 10, RPM: 913.00, Voltage: 15.79V, Current: 0.01A

...

POW: 46, RPM: 4759.00, Voltage: 15.77V, Current: 0.23A
POW: 46, RPM: 4759.00, Voltage: 15.77V, Current: 0.26A
...

POW: 79, RPM: 8226.00, Voltage: 15.75V, Current: 0.38A
POW: 79, RPM: 8162.00, Voltage: 15.75V, Current: 0.39A
...

POW: 94, RPM: 9683.00, Voltage: 15.74V, Current: 0.45A
POW: 94, RPM: 9691.00, Voltage: 15.74V, Current: 0.42A

INFO: Test took 20.56 seconds
Quadratic fit: motor_voltage = a2rpm_desired^2 + a1rpm_desired + a0
a0 = -177.472309779
a1 = 1.57805489295
a2 = -3.72938840838e-06
ESC Params (after scaling):
pwm_vs_rpm_curve_a0 = -177.472309779
pwm_vs_rpm_curve_a1 = 1.57805489295
pwm_vs_rpm_curve_a2 = -3.72938840838e-06
Traceback (most recent call last):
File "./voxl-esc-calibrate.py", line 194, in <module>
plt.plot(rpms, motor_voltages, 'bo')
File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 3250, in plot
ax = gca()
File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 962, in gca
return gcf().gca(**kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 592, in gcf
return figure()
File "/usr/lib/python3/dist-packages/matplotlib/pyplot.py", line 539, in figure
**kwargs)
File "/usr/lib/python3/dist-packages/matplotlib/backend_bases.py", line 171, in new_figure_manager
return cls.new_figure_manager_given_figure(num, fig)
File "/usr/lib/python3/dist-packages/matplotlib/backends/backend_tkagg.py", line 1049, in new_figure_manager_given_figure
window = Tk.Tk(className="matplotlib")
File "/usr/lib/python3.6/tkinter/init.py", line 2023, in init
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment variable

@AP123 SDK 1.1.1

Do i need to calibrate 4 in 1 ESC for Voxl 2? i have a M0134.

@tom stuck here

INFO: perform manual power cycle now, if needed
Sending library name request: libslpi_qrb5165_io.so
Received standard error event 2
Sending initialization request
Updated baud rate to 230400
INFO: Installing firmware to ESC ID 0 : /home/root/m0065_firmware.bin

I plug the cord into the IO board and nothing happens.

@tom Where can i get m0065_firmware.bin from?

@tom 1.1.1 is out and it is not working? was it not added as planned??

@Moderator Any idea where in the code i would do that? Trying to understand the code but it is a little confusing, a lot of your variables are initialized with pass through values.

How can i black out the frames of the stereo that see the blades so collision prevention will work? How did you guys do it? We have the same exact drone with 10 in props and the stereo sees the props spinning and wont move if collision prevention is enabled.

@Moderator Please tell me how i can narrow the frame of the stereo in the code.