# LEDs and Buttons

## LEDs

The device has a total of 3 status LED’s on the front of the device, these leds can have different colors and can flash or be solid.

### Status LED

The status led is used for displaying the overall status of the device.

| Cause                     | Color  | State                                 |
| ------------------------- | ------ | ------------------------------------- |
| Not Connected to LoRaWAN  | Red    | Blink : 2 second on, 1 second off.    |
| Joining LoRaWAN Network   | Blue   | Solid                                 |
| Joined to LoRaWAN Network | Green  | Solid                                 |
| Sending data LoRaWAN      | Blue   | Blink : 0.5 second on, 0.5 second off |
| Warning or Alarm          | Orange | Blink : 2 second on, 1 second off.    |

### Opentherm Master LED

The Opentherm Master LED provides information regarding the communication with the Master Device, the master device is the Opentherm Thermostat connected to the Thermostat input.

| Cause                    | Color  | State                                   |
| ------------------------ | ------ | --------------------------------------- |
| Checking Communication   | Blue   | Blink : 0.5 seconds on, 0.5 seconds off |
| Sending / Receiving Data | Orange | Blink : 0.5 seconds on, 0.5 seconds off |
| Communication Error      | Red    | Solid                                   |

### Opentherm Slave LED

The Opentherm Slave LED provides information regarding the communication with the Slave Device, the slave device is the Opentherm Boiler connected to the Boiler terminals.

| Cause                    | Color  | State                                   |
| ------------------------ | ------ | --------------------------------------- |
| Checking Communication   | Blue   | Blink : 0.5 seconds on, 0.5 seconds off |
| Sending / Receiving Data | Orange | Blink : 0.5 seconds on, 0.5 seconds off |
| Communication Error      | Red    | Solid                                   |

## Status Button

The status button can be used for the following actions;

* **Reset Device** (short press < 2 seconds)
* **Start join procedure** (short press > 5 seconds)