# Jetson connection
**There are three ways to connect to the Nvidia Jetson from the host computer:**
* Micro-USB cable connection through SSH
* Micro-USB cable connection through serial terminal (PuTTY)
* Wireless connection through SSH
### Micro-USB cable connection through SSH
{% stepper %}
{% step %}
**Connect the USB cable from the host computer to the micro-USB port on DroneCore.Pilot marked as USB\_DEV**
{% endstep %}
{% step %}
**Power on the board and wait till Jetson boots**
{% endstep %}
{% step %}
**Open the terminal on the Linux host computer**
{% endstep %}
{% step %}
**Type `ssh dcs_user@192.168.55.1` (dcs\_user is default username)**
{% endstep %}
{% step %}
**The user is now remotely connected to the Jetson terminal**
{% endstep %}
{% endstepper %}
***
###
### Wireless connection through SSH
{% stepper %}
{% step %}
**Wi-Fi card with antennas must be assembled on the board. (M2 WIFI cards verified: Intel AC-9260NGW, Intel AC-8265NGW)**
{% endstep %}
{% step %}
**Power on the board and wait till Jetson boots**
{% endstep %}
{% step %}
**Create Wi-Fi hotspot with SSID: DCS\_wifi, PASSWORD: dronecore**
{% endstep %}
{% step %}
**Find this Wi-Fi network and connect to it from the Linux host PC**
{% endstep %}
{% step %}
**Open the terminal on the host PC and type `ssh dcs_user@10.42.0.1` (dcs\_user is the default username)**
{% endstep %}
{% step %}
**Enter the password (default password = dronecore)**
{% endstep %}
{% step %}
**The user is now remotely connected to the Jetson terminal**
{% hint style="info" %}
NOTE: if Jetson is not in access-point mode but connected to existing Wi-Fi network, the user must know the IP address of Jetson in that network and connect to this IP `ssh dcs_user@x.x.x.x`
{% endhint %}
{% endstep %}
{% endstepper %}
***
###
### Micro-USB cable connection through serial terminal (PuTTY)
{% stepper %}
{% step %}
**Connect USB cable from the host computer to the micro-USB port on DroneCore.Pilot marked as USB\_DEV**
{% endstep %}
{% step %}
**Power on the board and wait till Jetson boots**
{% endstep %}
{% step %}
**Open a serial terminal program (putty, teraterm, gtkterm etc.) on a Linux or Windows host PC**
{% endstep %}
{% step %}
**Open the corresponding port (Jetson is commonly identified as ttyACM0 on the Ubuntu host PC)**
{% endstep %}
{% step %}
**Enter the user name of the user (DCS\_user is the default username)**
{% endstep %}
{% step %}
**Enter the password (default password = dronecore)**
{% endstep %}
{% step %}
**The user is now remotely connected to the Jetson terminal**
{% endstep %}
{% endstepper %}
***
###
### Useful hints
**Changing Ubuntu hostname:**
* Execute the following commands in the terminal
* `hostnamectl set-hostname desired_hostname`
* `sudo reboot`
**Changing Ubuntu user-name:**
* Execute the following commands in the terminal
* `sudo usermod -l desired_username current_username`
* `sudo usermod -d /home/desired_username -m desired_username`
* `sudo groupmod -n desired_username current_username`
**Changing Ubuntu user-password:**
* Execute the following commands in the terminal
* For user password: `passwd`
* For root password: `sudo passwd`
**Changing Wi-Fi SID/PASSWORD:**
* Execute the following commands in the terminal
//add how to change automatic wifi hotspot sid/pass
---
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