UART on GPIO HEADER - Jetson Nano

[@prefpkg21]

Thank you for walking through how to track it down! This helped with troubleshooting some dynamixel controllers that were causing errors.

[@JetsonHacks]

You are welcome, that's excellent to hear that the walk through was useful! Dynamixel controllers sound like an interesting project, I hope you can share it at some point. Thanks for watching.

[@parth8044]

Thanks a lot buddy , I was stuck on this problem for 2 days !!!

[@JetsonHacks]

You are welcome, I am glad you find it useful. Thanks for watching!

[@hanzmarin4655]

Thank you very much. In my case I can send data from Putty to the Jetson Nano , but can't receive the data from Jetson to Putty. I am using the PL2303 USB TTL driver and the J41 pins as explained, in the right order , can you please help me with this issue

[@angelleal3005]

Hey Jim you know if it's possible to do it the other way around. I want to establish communication from an uart port coming from a flight controller to a USB port on the Jetson nano. I want to read/write data from the Jetson to the FC. Also how to set up that configuration internally in the nano ? Thanks for the video.

[@JetsonHacks]

I am not sure what you are asking. It seems as if you are trying to read and write to the Jetson USB port, which is a standard Linux task. You should be able to use a serial port library.

[@autonomousselfdrivingnonco8334]

Hi, wonderful and simple demonstrations. thank you. can u make a video on jetson nano connected to MATLAB

[@pakhack_pk]

My GIPOs are not showing any output(voltage) although the code is running properly. I have tried to blink an led (with and without transistor) but still not working!!!Plz help...

[@Bwajster]

Is it possbile to use a USB UART cable in place of the USB TTL cable to establish serial communication between the Nano and a Laptop?

[@JetsonHacks]

I do not know. You have to convert the TTL logic to something that USB understands, so it will depend on the USB UART cable you are using.

[@Bwajster]

Why is the power pin of the TTL cable left unconnected?

[@JetsonHacks]

The PC is generating power. The Jetson is generating power. If you plug the two together, it is the same thing as plugging two wall receptacles together. You'll get a short circuit, and if you're unlucky a fire. Thanks for watching!

[@KangJangkrik]

Unfortunately, Jetson Nano won't receive any raw bytes (via cat) but works with ASCII printable characters

[@vineetranjan08]

Hi, Please make a tutorial on Nvidia Deepstream SDK on Jetson.

[@alpyldrm8448]

Hi, firstly thanks for the video. For my grad project I have to communicate my jetson nano with a stm32f4 device. I am watching bunch of different tutorials but there is nothing helpful. Do you have any idea how can I do that?

[@JetsonHacks]

I do not know enough about your project to provide any advice. Please ask this question on the official NVIDIA Jetson Nano forum.

[@cjmvirus]

Weirdest thing is happening. I thought this was completely straight forward but as soon as I connect to the serial port the terminal gets flooded with random characters, like something is flooding the port itself as soon as I launch the demo. Any ideas?

[@zdrom4564]

Experienced the same problem. Changed the cable to ADAFRUIT 954. updated driver to CP210x Universal Windows Driver v10.1.10 fixed it.

[@KangJangkrik]

1. Make sure the pins are plugged properly (Rx->Tx and Tx->Rx) 2. If it still happens, run this on terminal: sudo stty -F /dev/ttyTHS1 115200

[@AlbertoGonzalez-jn3os]

Help me please...PuTTy doesn't response me. I think that jetson nano is not recognizing the rs232 cable.

[@JetsonHacks]

What cable are you using? In the video, we are using a TTL to USB which has a converter in it so that the PC can talk to the Jetson. It is not RS232.

[@AlbertoGonzalez-jn3os]

@@JetsonHacks I mean.....i want that my PC and jetson detect each other with a com port. I want them to detect each other through a com port. I want that jetson nano detects my pc with a com port and my pc detects the jetson on another com port.

[@AlbertoGonzalez-jn3os]

@@JetsonHacks In my case, the jetson nano need to talk to the pc too(I put on it a monitor, etc)

[@AlbertoGonzalez-jn3os]

@@JetsonHacks TTL TO USB is the same that rs232-usb ??

[@JetsonHacks]

@@AlbertoGonzalez-jn3os They don't "detect" each other. You have to run a program which sends and receives data.

[@quotesfromanimes]

I watched your video while I was looking for how to connect Jetson nano to a PLC. Could you please prepare a video about connecting a PLC and Jetson nano if it is possible? If not, could you please explain how to do MODBUS TCP connection between Jetson nano and PLC?

[@JetsonHacks]

I don't know what your particular PLC is, or how it interfaces to a computer.

[@quotesfromanimes]

@@JetsonHacks Thank you for your answer.