Cannot run basic motion

NVIDIA-AI-IOT / jetbot

An educational AI robot based on NVIDIA Jetson Nano.

MIT License

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Cannot run basic motion #97

Closed tohmasung closed 5 years ago

tohmasung commented 5 years ago

Just finished setting up the jetbot and tried to run the Basic_motion notebook but always get TimeoutError: [Errno 110] Connection timed out when i try to run: robot=Robot() on jupyter notebook. Anyone know how to fix this?

Screenshot from 2019-06-26 22-36-55

tohmasung commented 5 years ago

One unrelated question. The jetbot ip address is the ip address of the wifi it's connected to right?

Mubeeni35 commented 5 years ago

Hello,

I had this same problem. Here is what I did to fix it.

Disconnect all wires from motors to motor driver.
Reconnect all wires and make sure they are inserted correctly. (The DIY has the wires flipped which is not correct).
Ensure that all wires are snug, any loose connection can also give you this error.

As for the ip address, it is different from the wifi ip address. The address should be listed on the PiOLED screen.

Let me know if you have issues with the IP, I can help you find that too.

tohmasung commented 5 years ago

Thank you for the reply.

I tried what you listed above but it didn't work for me.

Whenever I connect the 3V3 and GND using jumper wires between the piOLED and motor driver, the piOLED turns off. The jumper wires work fine so I am suspecting that the problem is with either the motor driver or the piOLED display.

Any thoughts on this?

Mubeeni35 commented 5 years ago

Can you post a picture of the connections on the PiOLED and the motor driver?

Few things to check:

make sure your solder connections are good.
check to see if the header pins on the PiOLED look exactly as the ones in the Wiki (making sure connections are at the correct location).

Thanks

tohmasung commented 5 years ago

Connection to motor driver Connection to pioled pioled turning on without jumper wire Display 2 Full setup Motor driver solder Motor driver solder 1 Motor driver solder 2 pioled solder pioled solder 1 pioled solder 2

Since I can't upload a video on this platform, I uploaded the video of the display shutting down as I plug in the 3.3V and GND wires. Link: https://youtu.be/DKajEA8Sg74

Mubeeni35 commented 5 years ago

Check if your soldering on pin headers near M3&M4 is not bridged. -- Try to plug in the motor driver without the PiOLED and see what happens then.
Also, which power supply/USB cable are you using?

tohmasung commented 5 years ago

I checked the soldering near M3 and M4 and using a magnifying glass and is pretty sure that they aren't bridged. Unfortunately plugging the motor driver directly to the nano still gave the same error.

USB I'm using to connect to nano Battery Pack USB I'm using to connect to motor driver

Mubeeni35 commented 5 years ago

hmmm. refer to this link https://github.com/NVIDIA-AI-IOT/jetbot/issues/92#issue-458215167

check in the terminal for the power thing

tohmasung commented 5 years ago

As I suspected, the problem was with the motor driver. The new one I ordered got delivered today, and I soldered the parts, connected the jumper wires, and it worked. Thanks for helping Mubeeni35 :).