JetBot Kit 2.1 and Nano 2gb

Robotics
1

Hi all,

I just assembled the 2.1 JetBot kit and using the Nano 2gb but it doesnt seem to work. The board lights up and the motor driver led flashes blue, but the Oled doesnt light up.

I started up the board with a screen and keyboard and i can see the boot is stuck on the bootloader with continue highlighted. When I try to connect a keyboard and mouse to tray to “continue” they dont work, no power seems to be sent to the keyboard. I tried with both a battery pack and directly to a powersupply.

I removed the hat, and trying booting, but its stuck on the same place. If I replace the sdcard with the one that I did based on nvidia’s default image, it boots and everything works.

I am going to reflash the spark image to the sdcard, but maybe I am missing something?

Thank you!

Kind Regards,

D

2

Just an update, reflashed the sdcard with 1.1 and its still stuck on the bootloader and not able to use keyboard. Disconnected the camera as well just to be sure its not an attachment issue.

3

Did a bit more digging, its seem the bootloader/recovery is only visibile in cases when the image used was not for the right Nano model. Is there a 2GB image available somewhere? or do I have to build it myself?

From what I understood to build it my self I would need the official nvidia image and the JetBot repository that would need to be updated with the sparkfun changes. Plus I would need the Qwiic python library. Is that correct?

Thanks!

4

So if anyone every comes this way because of the same issue, the easiest way to get it to work for me was was:

1)Take the official nvidia jetbot image from https://jetbot.org/master/software_setup/sd_card.html

2)Installed the github versions of Qwiic_I2C_Py,Qwiic_Micro_OLED_Py and Qwiic_SCMD_Py

3)Get the latest git clone of https://github.com/NVIDIA-AI-IOT/jetbot

4)Get the modified sparkfun files from https://cdn.sparkfun.com/assets/learn_t … jetbot.zip

5)To get the system running you only really need these three files in the jetbot directory motor.py robot.py and apps/state.py

  1. overwrite those three files into the clone repo from step 3 (same locations)

  2. run the install on the updated repo, restart and you should be good.

My oled didn’t want to turn on automatically at start, I still need to find the starup script and see if there are any problems there, otherwise you can run it manually by running the state.py file.

Hope this helps someone.

5

Hello! Your first reply! Yes I have the same exact issue as you. But I’m using the 4G B01 version. It sounds odd but I am happy someone else is having the exact same issue as I. Do you have any other updates to give before I tear the cd card apart?