Can't Create gamepad controller about jetbot HOT 15 CLOSED

Are you sure that you are connecting the gamepad to pc instead of robot?
if connected it right this would be appear

from jetbot.

@dennis08 The joystick is intended to be connected to the desktop machine which is remotely connected to the JetBot. I got the same error as you while the gamepad was connected to the JetBot.

from jetbot.

Since I only have one gamepad, I use index 0.
controller = widgets.Controller(index=0)

from jetbot.

A couple of things.

• unlink after successfully linking (before linking again)
• The remote controller USB dongle goes on the computer you're viewing the notebook on
• I had to press home twice to get two lights to show up on the game pad, and then I could link axis 5 to the right wheel, where as in any other mode only the left wheel gets hooked up to axis[1]. View the html5gamepad or starting widget display to validate you're using a valid axis.

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By the way.

When I execute traitlets, also get some errors.
`
from jetbot import Robot
import traitlets

robot = Robot()

left_link = traitlets.dlink((controller.axes[1], 'value'), (robot.left_motor, 'value'), transform=lambda x: -x)
right_link = traitlets.dlink((controller.axes[3], 'value'), (robot.right_motor, 'value'), transform=lambda x: -x)
`

ERRORS:

`
IndexError Traceback (most recent call last)
in
2 # the commands transfered
3
----> 4 left_link = traitlets.dlink((controller.axes[1], 'value'), (robot.left_motor, 'value'), transform=lambda x: -x)
5 right_link = traitlets.dlink((controller.axes[3], 'value'), (robot.right_motor, 'value'), transform=lambda x: -x)
6 camera_link = traitlets.dlink((camera, 'value'), (image, 'value'), transform=bgr8_to_jpeg)

IndexError: tuple index out of range
`

from jetbot.

Hi dennis08,

Typically, this means that the gamepad wasn't found (or initialized, ie by pressing a button) for the index that you selected.

1. Check if your gamepad responds by navigating to https://html5gamepad.com/ and moving the axes around
2. Note the index of the gamepad that responds to the axis movements, use this value in the notebook.

Best,
John

from jetbot.

Hi dennis08,

Since there need a third party Gamepad Controller to control Jetbot, so I create a project based on Flask and HTML/JavaScript, with this project, you can only use mobile phone browser to control Jetbot.

Project: https://github.com/mayuanjason/mbot
Project Wiki: https://github.com/mayuanjason/mbot/wiki/Remote-Control

The Wiki is written in Chinese, but I think the codes should be fairly self-explanatory, you can follow the the commands listed in the Wiki in your PC(not Jetson Nano) and have a try.

Hope you enjoy it.

from jetbot.

Hi dennis08,

Typically, this means that the gamepad wasn't found (or initialized, ie by pressing a button) for the index that you selected.

1. Check if your gamepad responds by navigating to https://html5gamepad.com/ and moving the axes around
2. Note the index of the gamepad that responds to the axis movements, use this value in the notebook.

Best,
John

Dear John,

Sure.

1. My gamepad responds by navigating to https://html5gamepad.com/ is fine, and buttons reponse is fine too.
2. And The index of my gamepad is "1".
   I try to buy another gamepad to control it.
   Thnaks so much.

from jetbot.

Hi dennis08,

Since there need a third party Gamepad Controller to control Jetbot, so I create a project based on Flask and HTML/JavaScript, with this project, you can only use mobile phone browser to control Jetbot.

Project: https://github.com/mayuanjason/mbot
Project Wiki: https://github.com/mayuanjason/mbot/wiki/Remote-Control

The Wiki is written in Chinese, but I think the codes should be fairly self-explanatory, you can follow the the commands listed in the Wiki in your PC(not Jetson Nano) and have a try.

Hope you enjoy it.

Dear mayuanjason ,

Excellent, I will try it, thanks for your suggestion.

from jetbot.

Hi dennis08,

I have refactoring the whole program and test it on my Jetbot, it can work now.
Just check the latest Wiki for how to run the program.
Wiki: https://github.com/mayuanjason/mbot/wiki/Remote-Control
Hope you enjoy it.

from jetbot.

i have the same error. The game controller works on the website https://html5gamepad.com/ but not on jupyter . ill also try the remote controll

from jetbot.

I have the same problem... I have the index set correctly and have tried 3 controllers (2 no name brand controllers and an official xbox one controller) just for a sanity check. I have seen the link above but i dont want to use my phone or tablet to control this.

For me, I have 3 scenarios...
1: it works without throwing the tuple index out of range (maybe 30% of the time or less).

2: it throws the tuple index out of range error and doesnt work (60% of the time or more).

3: it throws the tuple index out of range error and decides to work anyways. BOTH motors can be controlled using the controller despite it throwing the error at left_link.

The example code throws it even! I'm just starting out with coding... idk how to fix this yet. Hoping someone can help me out.

from jetbot.

I too am also having the same problem. I can see the axis moving in the widgets in the program, but no movement.

from jetbot.

So if i run the example, it works! If i want to do anything other than the demo or If i copy and paste the code into a single "block", it throws a tuple index out of error when trying to use a controller for movement. This is with the correct index set and tried with 3 controllers. Can someone explain why? I mean its the EXACT same code... if it runs the block and then runs the next block, if i make just one block with all the code, it should still work. Am i missing something?

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How to unlink after successfully linking?

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