# Installing PowerBoard

{% hint style="info" %}
For details on hardware installation, see the [12V Power Distribution](/build/hardware/control-box/12v-power-distribution.md) instructions.
{% endhint %}

## Installation

The POCS repository includes a script that will perform all the necessary steps for the Power Board installation. After successfully [Installing POCS](/build/software/installation/installing-pocs.md) you should have all the required tools. First make sure that the Arduino is connected directly to the Raspberry Pi and then issue the following commands at a terminal:

```
cd $HOME/pocs/resources/arduino
bash install-arduino.sh
```

The above script will download all the required libraries, compile the Arduino sketch, and upload the script from the Raspberry Pi to the Arduino.

After installing Arduino, you will need to reboot the Pi. After the Pi has restarted check and make sure the [Services](/build/software/appendix/services.md)are running, finish the [Configuration](/build/software/configuration.md), then start [Testing](/build/testing.md)!

## PowerBoard Configuration

The relays are numbered `0` to `4` and given the generic names `RELAY_0`, `RELAY_1`, etc. You can assign labels to each of these relays by editing the [Configuration](/build/software/configuration.md), with the default labels matching the suggested instructions in the [Power Distribution](/build/hardware/control-box/12v-power-distribution.md) setup instructions. By default, those labels are:

| Relay    | Label            | Default status |
| -------- | ---------------- | -------------- |
| RELAY\_0 | weather\_station | on             |
| RELAY\_1 | unused1          | off            |
| RELAY\_2 | fans             | on             |
| RELAY\_3 | unused2          | off            |
| RELAY\_4 | mount            | on             |

As a reminder, in the current configuration the camera box power is delivered via the mount.


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