---
slug: access-astra
title: Access Astra Board
authors: [asahu]
tags: [connect,access]
---

# Guide to access Astra Machina Dev Board
This tutorial will guide you through the steps required to access a Astra Machina Dev Board.

We can access our Astra Machina Board using:  


**1. Using ADB on Host Machine** 

**2. Using Tera Term / Putty on Host Machine** 

**3. Using Wayland Terminal on Astra Board**

## 1. ADB 

### Connect to your board

To communicate with your board via Android Debug Bridge (ADB) first connect a USB cable from your dev machine to the USB C port on the board marked "USB-2.0". 

![board](https://synaptics-astra.github.io/doc/v/0.9.0/_images/usb-c.png)

:::warning
The other USB-C marked PWR_IN should be connected to the power supply - make sure you get them the right way around!
:::


If you don't have ADB,it can be installed as part of [Android SDK Platform-Tools](https://developer.android.com/tools/releases/platform-tools#downloads). You should then be able to open a MacOS, Linux or Windows shell inside folder `platform-tools` and run:

```bash  
adb devices
```

You can check if the Synaptics Astra board is attached:

<pre>List of devices attached
SL16x0	device</pre>

See the [user guide](https://synaptics-astra.github.io/doc/v/0.9.0/linux/index.html#the-shell-with-adb) for more information on ADB.


### Copy across the sample image

First, copy the example image from your dev machine to the board:

```
adb push ~/Downloads/expanse.jpg /home/weston/expanse.jpg
```

### Start a shell session

Then start a shell session:

```
adb shell
hostname
```

You should see the prompt has changed and the board responds with a hostname:

<pre>
sh-5.1# hostname
sl1680
</pre>


## 2. Tera Term / Putty

### Connect to your board

To communicate with your board via Tera Term or Putty first connect a **UART** from your dev machine to the GPIO Header of the board following this image:

**VDD -> Pin 1 , GND -> Pin 6 , TX  -> Pin 8 and RX  -> Pin 10**.


![image](https://synaptics-astra.github.io/doc/v/1.0.0/_images/40-pin-connector.png )


### Tera Term settings

Open Tera Term: New connection then Select Serial -> Port: 'COM$: Silicon Labs CP210x USB to UART Bridge' 

Go to 'Setup' and Open 'Serial Port'
Then set 'Speed' -> '115200' and Click 'New Open'


### Copy across the sample image

Once in Tera Term is setup, Get the Inet address of your Astra Machina Board from here.
<!-- ```bash title="ADB_Terminal" class="no-copy-prompt"
sh-5.1# ifconfig eth0 | grep "inet addr" -->
```bash
ifconfig eth0 | grep "inet addr"
``` 
Copy the example image from your dev machine to the board using `scp ` to Machina board:

```bash 
scp ~/Downloads/expanse.jpg root@10.3.10.132:/home/root
``` 


## 3. Wayland Terminal 
### Connect to your board

Connect the Power supply in USB-C marked **PWR_IN**.  

Astra Machina’s graphical desktop is enabled be default. It can be displayed on an external display connected to the HDMI port or a MIPI display. 


Input can be provided by connecting a standard USB keyboard and mouse.

![image](https://synaptics-astra.github.io/doc/v/0.9.0/_images/board-ports.png)

:::warning
HDMI is currently not supported on SL1620
:::

### Wayland Desktop

Clicking on the icon in the top left corner will open a terminal.

![image](https://synaptics-astra.github.io/doc/v/0.9.0/_images/wayland-terminal.jpg)