Hi ,
I have built a jetbot and wanted to try jetracer without building a new vehicle. Is the code compatible ?

Thanks

Thanks for the amazing project and resources! I translated this repository resources (notebooks, markdown files) into Japanese.
https://github.com/tomo-makes/jetracer/tree/20190630-ja

Could you guide me if there is a proper / better way to contribute (pull request under specific directories etc)?

Tomo

In this step of the instructions, you say to connect to VCC but the picture shows the connection to V+. Which is right?
https://user-images.githubusercontent.com/25759564/60315002-a56b1000-9919-11e9-8a53-2d941cc1b139.JPG

Hi all,
i build me a jetracer and all notebooks are running, but i have several questions

1. when i turn on the car, the speedcontroller is bibing all the time
2. is their a webinterface to drive the car or only with the hardware controller
3. any assembling or training video available

thx for your help

Alexander

I setup python using sudo python3 setup.py install
The result I think is OK but I ran basic_motion.ipynb script copying to basic_motion.py
And run the script but raise RuntimeError("The current user does not have permissions set to "....

Does anyone have any idea how to solve this?

OS : linux18.04
python 3.6.8
jetsonnano local

----------------Output of setup.py-------------------

running install
running bdist_egg
running egg_info
writing jetracer.egg-info/PKG-INFO
writing dependency_links to jetracer.egg-info/dependency_links.txt
writing requirements to jetracer.egg-info/requires.txt
writing top-level names to jetracer.egg-info/top_level.txt
reading manifest file 'jetracer.egg-info/SOURCES.txt'
writing manifest file 'jetracer.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-aarch64/egg
running install_lib
running build_py
creating build/bdist.linux-aarch64/egg
creating build/bdist.linux-aarch64/egg/jetracer
copying build/lib/jetracer/racecar.py -> build/bdist.linux-aarch64/egg/jetracer
copying build/lib/jetracer/nvidia_racecar.py -> build/bdist.linux-aarch64/egg/jetracer
copying build/lib/jetracer/init.py -> build/bdist.linux-aarch64/egg/jetracer
byte-compiling build/bdist.linux-aarch64/egg/jetracer/racecar.py to racecar.cpython-36.pyc
byte-compiling build/bdist.linux-aarch64/egg/jetracer/nvidia_racecar.py to nvidia_racecar.cpython-36.pyc
byte-compiling build/bdist.linux-aarch64/egg/jetracer/init.py to init.cpython-36.pyc
creating build/bdist.linux-aarch64/egg/EGG-INFO
copying jetracer.egg-info/PKG-INFO -> build/bdist.linux-aarch64/egg/EGG-INFO
copying jetracer.egg-info/SOURCES.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
copying jetracer.egg-info/dependency_links.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
copying jetracer.egg-info/requires.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
copying jetracer.egg-info/top_level.txt -> build/bdist.linux-aarch64/egg/EGG-INFO
zip_safe flag not set; analyzing archive contents...
creating 'dist/jetracer-0.0.0-py3.6.egg' and adding 'build/bdist.linux-aarch64/egg' to it
removing 'build/bdist.linux-aarch64/egg' (and everything under it)
Processing jetracer-0.0.0-py3.6.egg
Removing /usr/local/lib/python3.6/dist-packages/jetracer-0.0.0-py3.6.egg
Copying jetracer-0.0.0-py3.6.egg to /usr/local/lib/python3.6/dist-packages
jetracer 0.0.0 is already the active version in easy-install.pth

Installed /usr/local/lib/python3.6/dist-packages/jetracer-0.0.0-py3.6.egg
Processing dependencies for jetracer==0.0.0
Searching for adafruit-circuitpython-servokit==1.1.0
Best match: adafruit-circuitpython-servokit 1.1.0
Processing adafruit_circuitpython_servokit-1.1.0-py3.6.egg
adafruit-circuitpython-servokit 1.1.0 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_servokit-1.1.0-py3.6.egg
Searching for adafruit-circuitpython-register==1.7.1
Best match: adafruit-circuitpython-register 1.7.1
Processing adafruit_circuitpython_register-1.7.1-py3.6.egg
adafruit-circuitpython-register 1.7.1 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_register-1.7.1-py3.6.egg
Searching for adafruit-circuitpython-pca9685==3.2.5
Best match: adafruit-circuitpython-pca9685 3.2.5
Processing adafruit_circuitpython_pca9685-3.2.5-py3.6.egg
adafruit-circuitpython-pca9685 3.2.5 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_pca9685-3.2.5-py3.6.egg
Searching for adafruit-circuitpython-motor==2.0.0
Best match: adafruit-circuitpython-motor 2.0.0
Processing adafruit_circuitpython_motor-2.0.0-py3.6.egg
adafruit-circuitpython-motor 2.0.0 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_motor-2.0.0-py3.6.egg
Searching for adafruit-circuitpython-busdevice==4.0.0
Best match: adafruit-circuitpython-busdevice 4.0.0
Processing adafruit_circuitpython_busdevice-4.0.0-py3.6.egg
adafruit-circuitpython-busdevice 4.0.0 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_busdevice-4.0.0-py3.6.egg
Searching for Adafruit-Blinka==2.5.0
Best match: Adafruit-Blinka 2.5.0
Processing Adafruit_Blinka-2.5.0-py3.6.egg
Adafruit-Blinka 2.5.0 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-2.5.0-py3.6.egg
Searching for spidev==3.4
Best match: spidev 3.4
Processing spidev-3.4-py3.6-linux-aarch64.egg
spidev 3.4 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/spidev-3.4-py3.6-linux-aarch64.egg
Searching for sysv-ipc==1.0.0
Best match: sysv-ipc 1.0.0
Processing sysv_ipc-1.0.0-py3.6-linux-aarch64.egg
sysv-ipc 1.0.0 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/sysv_ipc-1.0.0-py3.6-linux-aarch64.egg
Searching for Jetson.GPIO==2.0.1
Best match: Jetson.GPIO 2.0.1
Adding Jetson.GPIO 2.0.1 to easy-install.pth file

Using /usr/local/lib/python3.6/dist-packages
Searching for Adafruit-PureIO==0.2.3
Best match: Adafruit-PureIO 0.2.3
Processing Adafruit_PureIO-0.2.3-py3.6.egg
Adafruit-PureIO 0.2.3 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/Adafruit_PureIO-0.2.3-py3.6.egg
Searching for Adafruit-PlatformDetect==1.3.4
Best match: Adafruit-PlatformDetect 1.3.4
Processing Adafruit_PlatformDetect-1.3.4-py3.6.egg
Adafruit-PlatformDetect 1.3.4 is already the active version in easy-install.pth

Using /usr/local/lib/python3.6/dist-packages/Adafruit_PlatformDetect-1.3.4-py3.6.egg
Finished processing dependencies for jetracer==0.0.0

-----------------------------------------RunTime Error is below--------------------------------

Traceback (most recent call last):
File "./test.py", line 2, in
from jetracer.nvidia_racecar import NvidiaRacecar
File "", line 971, in _find_and_load
File "", line 955, in _find_and_load_unlocked
File "", line 656, in _load_unlocked
File "", line 626, in _load_backward_compatible
File "/usr/local/lib/python3.6/dist-packages/jetracer-0.0.0-py3.6.egg/jetracer/nvidia_racecar.py", line 3, in
File "", line 971, in _find_and_load
File "", line 955, in _find_and_load_unlocked
File "", line 656, in _load_unlocked
File "", line 626, in _load_backward_compatible
File "/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_servokit-1.1.0-py3.6.egg/adafruit_servokit.py", line 52, in
File "/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-2.5.0-py3.6.egg/board.py", line 86, in
from adafruit_blinka.board.jetson_nano import *
File "/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-2.5.0-py3.6.egg/adafruit_blinka/board/jetson_nano.py", line 3, in
from adafruit_blinka.microcontroller.tegra.t210 import pin
File "/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-2.5.0-py3.6.egg/adafruit_blinka/microcontroller/tegra/t210/pin.py", line 3, in
import Jetson.GPIO as GPIO
File "/usr/local/lib/python3.6/dist-packages/Jetson/GPIO/init.py", line 1, in
from .gpio import *
File "/usr/local/lib/python3.6/dist-packages/Jetson/GPIO/gpio.py", line 33, in
raise RuntimeError("The current user does not have permissions set to "
RuntimeError: The current user does not have permissions set to access the library functionalites. Please configure permissions or use the root user to run this

Hi, This is SG Kim,

I hope to send some data from Phone App to JetRacer based on BLE comm.
Can you guide what to do to enable BLE comm between JetRacer and Phone App based on Python?
( JetRacer : device ( Peripheral ), Phone : Central )

I tried to install pybluez, but failed it.

Thanks in advance for your help.

Hello everyone,

I had a problems with basic_motion notebook.

1. During calibration no matter what numbers I put in car.steering_gain and car.steering_offset my servo does not turn to right. Maximum motion to the right is natural straight run position (which should be on '0' value). Maximum left motion touches chassis and it looks like it would turn more down if there is not a chassis plate.
2. Second problem is about throttle. Contrariwise to the instinctive thinking, when I put negative value the car moves forward and opposite with positive value it moves backward.

Thank you in advance for any hints.
Greetings

Will the 3D printer parts also work for a TT-01? If not, can anyone give some advice on what needs to change?

Hi there,
I had a this error cood ? what to do this matter,please advice for me. thenk you!

Hello,

I got Jetson Nano B01, and I tried included images in this repository but it didn't work. The Nano didn't boot at all.
This there may you mention what this image has over the original image. So, I can run the code over this Nano jetson.

Forgive my ignorance, as I'm sure the answer to this issue is incredibly simple.

I have attempted to run basic_motion.ipynb after finishing the software setup. However, there are apparently some erroneous values in the code, and I am not experienced enough to figure out what to do to fix it.

I figured posting this as an issue would help others who get stuck right after the software setup as well.

Thanks for any advice you can give, and happy holidays!

In both the basic_motion and road_following notebooks, the following line results in a timeout error:
car = NvidiaRacecar()

This same code ran fine a few weeks prior and we haven't changed anything since.

Hi,
I made a tamiya version. When I tried the basic motion part, the throttle command did not have any response from the car. I viewed an issue about the transmitter do not have manual override switch. So I bypass the multiplexer and connect the cable of servo motor and ESC to the PCA PWM driver directly. The steering command had response but the throttle did not have. My ESC's model number is TAMIYA TBLE-02S. What problems it might have? Thank you.

When I run the road_following instruction, the trajectory of the car movement is very different from the trajectory I want. How can I optimize the model used by road_following?

合并视频20200409115735.zip

on the wiki page none of the link are working... :(

Follow these steps and you should be up and running with JetRacer in no time!

Get parts from the bill of materials
Follow the hardware setup
Follow the software setup
Run through the examples

ERROR : AttributeError: module 'torch' has no attribute 'reciprocal_'

while running
'''
from torch2trt import torch2trt
data = torch.zeros((1, 3, 224, 224)).cuda().half()
model_trt = torch2trt(model, [data], fp16_mode=True)
'''

is there any version problem for torch2trt?

Would it be too heavy on the chassis to add an Intel NUC to jetracer?

I am using a Traxxas 4WD Slash RC Car in place of the Tamiya RC Car and have found during the basic motion tests that the Slash car steering direction is the opposite of the Tamiya car steering direction ie: the Slash steers left when steering is set to 1 instead of steering right.
Therefore I would appreciate it if someone can point me to the proper python code in jetracer where I can reverse the steering input so that my Traxxas car will steer right when steering is set to 1 instead of to the left.
TCIII

The current version has a dependency on markupsafe, which does not seem to be installed by default. Must run:

sudo pip3 install markupsafe

Hi,
I am thinking to order an online 3D print service to purchase the supports and the provider asks if the unit dimensions are in millimeters, centimeters or inches?

Does anyone suggest any 3d printing services?

Thanks,
Albano

Hello, I have a question about the setup components for Latrax-version JetRacer. Is it possible to replace the wide angle Leopard camera with a jetson nano compatible wide angle camera, e.g.,
https://www.amazon.de/IMX219-160IR-Camera-Developer-8-megapixel-Infrared/dp/B07TB8STRK/ref=sr_1_5?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=Wide+Angle+Jetson+Nano&qid=1588452355&s=computers&sr=1-5. Thank you very much.

Can we run the project of jetbot on this, for example: follow something/people, avoid obstacles, etc

Hi,

This is not really an issue but a query. Did you choose the Traxxas LaTrax Rally car specifically for a particular reason, such as the 3d printed base board would fit well with it, or you knew that it was hackable? I am asking because the Traxxas RC cars are not available in India and importing it costs 3x more. There are other RC cars with similar specs (1:18 scale, 2.4 GHz radio, 4WD), such as this.

The Donkey car is also a relatively affordable option. I would appreciate if you could give any opinion on this, I have never played with RC cars and haven't done any hardware hacking before.

When PiOLED is not connected, i2c error message (no acknowledge from address 0x3c) keep sending to console. how to disable or remove PiOLED on Jetracer platform?

TimeoutError Traceback (most recent call last)
/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_busdevice-4.1.1-py3.6.egg/adafruit_bus_device/i2c_device.py in __probe_for_device(self)
162 try:
--> 163 self.i2c.writeto(self.device_address, b'')
164 except OSError:

/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-3.3.4-py3.6.egg/busio.py in writeto(self, address, buffer, start, end, stop)
83 return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=stop)
---> 84 return self._i2c.writeto(address, buffer, stop=stop)
85

/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-3.3.4-py3.6.egg/adafruit_blinka/microcontroller/generic_linux/i2c.py in writeto(self, address, buffer, start, end, stop)
37 end = len(buffer)
---> 38 self._i2c_bus.write_bytes(address, buffer[start:end])
39

/usr/local/lib/python3.6/dist-packages/Adafruit_PureIO/smbus.py in write_bytes(self, addr, buf)
255 self._select_device(addr)
--> 256 self._device.write(buf)
257

TimeoutError: [Errno 110] Connection timed out

During handling of the above exception, another exception occurred:

OSError Traceback (most recent call last)
/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_busdevice-4.1.1-py3.6.egg/adafruit_bus_device/i2c_device.py in __probe_for_device(self)
168 result = bytearray(1)
--> 169 self.i2c.readfrom_into(self.device_address, result)
170 except OSError:

/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-3.3.4-py3.6.egg/busio.py in readfrom_into(self, address, buffer, start, end)
73 stop = True # remove for efficiency later
---> 74 return self._i2c.readfrom_into(address, buffer, stop=stop)
75

/usr/local/lib/python3.6/dist-packages/Adafruit_Blinka-3.3.4-py3.6.egg/adafruit_blinka/microcontroller/generic_linux/i2c.py in readfrom_into(self, address, buffer, start, end, stop)
43
---> 44 readin = self._i2c_bus.read_bytes(address, end-start)
45 for i in range(end-start):

/usr/local/lib/python3.6/dist-packages/Adafruit_PureIO/smbus.py in read_bytes(self, addr, number)
154 self._select_device(addr)
--> 155 return self._device.read(number)
156

OSError: [Errno 121] Remote I/O error

During handling of the above exception, another exception occurred:

ValueError Traceback (most recent call last)
in
1 from jetracer.nvidia_racecar import NvidiaRacecar
2
----> 3 car = NvidiaRacecar()

/usr/local/lib/python3.6/dist-packages/jetracer-0.0.0-py3.6.egg/jetracer/nvidia_racecar.py in init(self, *args, **kwargs)
16 super(NvidiaRacecar, self).init(*args, **kwargs)
17 self.kit = ServoKit(channels=16, address=self.i2c_address1)
---> 18 self.motor = ServoKit(channels=16, address=self.i2c_address2)
19 self.motor._pca.frequency = 1600
20 self.steering_motor = self.kit.continuous_servo[self.steering_channel]

/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_servokit-1.1.0-py3.6.egg/adafruit_servokit.py in init(self, channels, i2c, address, reference_clock_speed)
84 if i2c is None:
85 i2c = board.I2C()
---> 86 self._pca = PCA9685(i2c, address=address, reference_clock_speed=reference_clock_speed)
87 self._pca.frequency = 50
88

/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_pca9685-3.2.5-py3.6.egg/adafruit_pca9685.py in init(self, i2c_bus, address, reference_clock_speed)
129
130 def init(self, i2c_bus, *, address=0x40, reference_clock_speed=25000000):
--> 131 self.i2c_device = i2c_device.I2CDevice(i2c_bus, address)
132 self.channels = PCAChannels(self)
133 """Sequence of 16 PWMChannel objects. One for each channel."""

/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_busdevice-4.1.1-py3.6.egg/adafruit_bus_device/i2c_device.py in init(self, i2c, device_address, probe)
65
66 if probe:
---> 67 self.__probe_for_device()
68
69 def readinto(self, buf, **kwargs):

/usr/local/lib/python3.6/dist-packages/adafruit_circuitpython_busdevice-4.1.1-py3.6.egg/adafruit_bus_device/i2c_device.py in __probe_for_device(self)
169 self.i2c.readfrom_into(self.device_address, result)
170 except OSError:
--> 171 raise ValueError("No I2C device at address: %x" % self.device_address)
172 finally:
173 self.i2c.unlock()

ValueError: No I2C device at address: 60
这是为什么啊

After running through the code in interactive_regression.ipynb and training/evaluating a dataset, I am unable to get past creating the camera class in road_following.ipynb. Specifically, the block of code starts compiling but never finishes compiling.

Particularly I am talking about this block:

Everything before it compiles with no problem.

I also have no problem creating the camera class in interactive_regression.ipynb so I am unsure what would be causing it to hang in road_following.ipynb.

Any help would be appreciated. Thank you.

show error message as below, please kindly help

Hello all, happy holidays!

I am having a strange issue when running the JetRacer basic motion notebook.

When I run basic_motion.ipynb and adjust car.throttle, positive values actually make the car go in reverse, and negative values move it forward.

If I adjust car.throttle_gain to a negative number, that allows positive values in car.throttle to move the car forward.

Basically, things seem to be working in reverse for some reason. Anyone have any clue what's going on here?

Let me know if you need additional info to give an answer and I'll provide what you need. Thanks!

In road_follwing, it looks like setting the value of car.steering and bias
Actually, it is set up by adding up the setting value of Bias.
It looks like you need to change car.steering_offset to change Bias.
Is that right?

road_following.iphnb

from utils import preprocess
import numpy as np

STEERING_GAIN = 0.75
STEERING_BIAS = 0.00

car.throttle = 0.15

while True:
image = camera.read()
image = preprocess(image).half()
output = model_trt(image).detach().cpu().numpy().flatten()
x = float(output[0])
car.steering = x * STEERING_GAIN + STEERING_BIAS

class NvidiaRacecar(Racecar):

i2c_address = traitlets.Integer(default_value=0x40)
steering_gain = traitlets.Float(default_value=-0.65)
steering_offset = traitlets.Float(default_value=0)
steering_channel = traitlets.Integer(default_value=0)
throttle_gain = traitlets.Float(default_value=0.8)
throttle_channel = traitlets.Integer(default_value=1)

def __init__(self, *args, **kwargs):
    super(NvidiaRacecar, self).__init__(*args, **kwargs)
    self.kit = ServoKit(channels=16, address=self.i2c_address)
    self.steering_motor = self.kit.continuous_servo[self.steering_channel]
    self.throttle_motor = self.kit.continuous_servo[self.throttle_channel]

@traitlets.observe('steering')
def _on_steering(self, change):
    self.steering_motor.throttle = change['new'] * self.steering_gain + self.steering_offset

@traitlets.observe('throttle')
def _on_throttle(self, change):
    self.throttle_motor.throttle = change['new'] * self.throttle_gain

notebooks/interactive_regression.ipynb

Data Collection

import cv2
import ipywidgets
import traitlets
from IPython.display import display
from jetcam.utils import bgr8_to_jpeg
from jupyter_clickable_image_widget import ClickableImageWidget

ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-4-ffabc01d44a0> in <module>
      4 from IPython.display import display
      5 from jetcam.utils import bgr8_to_jpeg
----> 6 from jupyter_clickable_image_widget import ClickableImageWidget
      7 
      8 

ModuleNotFoundError: No module named 'jupyter_clickable_image_widget'

I can't find a package or module named "jupyter_clickable_image_widget"

Hello,
Is there any reason of buying RX TX Combo (Futaba 3PV) with R304SB as we are being pointed by moving to Amazon listing? As far as I know R203GF just don't have the voltage telemetry, which I don't think we use anyway, but it can save some extra bucks.
EDIT1: Actually, by looking at this section, I can see that only 3 channels are being used and none of them is the telemetry one (one for servo, one for ESC and another one for SEL). Does it mean that I can use any receiver with 3CH and not exactly Futatba 3PV as the controller?

We've been using LaneNet on similar small cars and it's amazing. Have you considered adding that as a pre-trained lane-follower in JetRacer?

https://twitter.com/nvidiadrive/status/1149051960940814341
https://arxiv.org/abs/1802.05591

We used this version:
https://github.com/MaybeShewill-CV/lanenet-lane-detection

Futaba S3004 Standard Ball Bearing Servo is listed in Tamiya Bill-Of-Materials . But its not used in the Hardware assembly .

So is it Futaba S3004 Standard Ball Bearing Servo really required for Tamiya setup ?

I definitely took 400 pictures and 10 trainings, but in road_following the jetracer can't follow the line properly. Obviously the blue dot in the 'evaluate' followed the line well, but in the road_following the jetracer doesn't have it properly.

Is there any replacement for servo multiplexer?
I can't buy it in my country...

After following all the software setup, when I try to run the first line in basic_motion.ipynb, I get this error:

saying an integer was required but got a type bytearray.

Not sure what to do to fix it.

When i etched the image on the sd card and booted up my jetson nano, i got no display. No idea where to go from here. Any help would be appreciated.

Hi!
Just builded my Jetracer (latrax 1:18 -> youtube video )
I created a setup track:



After following instructions:

1. basic motion works correctly;
2. interactive regression gives me always right-bottom blue point during "evaluation";
3. road following: car always go right.

I always tried with a simple path:

And car goes right.

Installed camera is: IMX219 with wide angle.

How do I choice correctly points? Which is correct sequence (create images -> train button -> evaluate -> save)?
Is my track correct or are necessary other stuffs such as central line and uniform colours?

Thank you in advance!

Is there any link we can buy all the items in one package?

Hello,

I am wondering if I can replace Pololu 4-Channel RC Servo Multiplexer with other chips. It is expansive to ship it to Canada. I don't have any experience with electronics, I appreciate any help.

There's an extra "o" in the Amazon link for the PWM board.

It should be http://amzon.com/B01D1D0CX2/

Is there any work underway to release instructions to create a "jetracer-ROS" platform, analagous to the "jetbot-ROS? It seems the most significant change is changing the jetbot AdafruitMotorHAT motor driver (which is not actually a ROS Node) to a steering Servo/ESC motor drive Node listening to geometry_msg/Twist. This should be functionally similar to what's used on the Racecar-j-ROS, https://www.jetsonhacks.com/2018/08/19/racecar-j-ros-teleoperation/ ?

Seems you have to run Python via WIFI to control the car. What if you do not have WIFI? Can you run C++ and ROS to control the car?

Hi, I made JetRacer of tamiya version.

Then, I followed the instruction in docs/examples.md Example 1 - Basic Motion.
When I run the line of car.steering = 0.3 in notebooks/basic_motion.ipynb, my car doesn't response.
The comment in the notebook said:

If the car does not respond, it may still be in manual mode. Flip the manual override switch on the RC transmitter.

However, my RC transmitter ( which is TTU-08 also in the photo of docs/tamiya/bill_of_materials.md) doesn't have override switch.

It seems like the hardware setup for latrax (at the Phase 4 of docs/latrax/hardware_setup.md) has RC transmitter modification.
Does tamiya version also have to do same modification like latrax version to make it manual mode?

Can anyone share the successful training method or a training video !

1. I have tried a lot but the car doesn't turn through the curves and if i adjust it to make curve...even for fractional adjustments in the value makes the car to be turning forever.

2. I had also tried various positions of camera from the default position(where the feed image has half road and half of the room) to fully focusing the road by tilting the camera downwards a little.

Hello, I have a question about the cable orientation in the final build.

The pictures in the build show the original 2 channel + B receiver, however it's unclear where the cables are supposed to be connected in the final build.

I can get the car running in Jupyter Lab, but when running the Basic Motion file, steering seems to control the car's throttle, and vice versa for throttle controlling the steering. In manual mode, the car controls as you would expect, this is only a problem for "Nvidia" mode.

Do you have any photos of the updated final build that would make the cable orientation more obvious? I feel like I must simply have wires in the wrong place or something.

Thanks a bunch!