## Clock Screen

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### Overview

|           OLED            |           E-Ink           |
| :-----------------------: | :-----------------------: |
| ![](./clk_scr_1_oled.png) | ![](./clk_scr_1_eink.png) |

A full-screen clock page on the home screen. Shows the current time and date, with up to three configurable data fields below.

Time is synchronized from GPS or via the companion app. Timezone offset is applied from **Settings › System**.

If no time source is available, the screen shows _"! No time sync"_ with a hint to enable GPS or connect the app.

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### Time display

- **Format** — 24 h or 12 h with AM/PM; configurable in **Settings › Display**
- **Seconds** — shown by default on OLED; hidden on e-ink (always) and optionally on OLED via **Settings › Display › Clock seconds**; hiding reduces the refresh rate from 1 s to 60 s

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### Data fields

|           OLED            |           E-Ink           |
| :-----------------------: | :-----------------------: |
| ![](./clk_scr_2_oled.png) | ![](./clk_scr_2_eink.png) |

Up to three data fields are shown below the date separator. Each field displays a label and a value on the same line.

| Field       | Label | Value                                                                     |
| ----------- | ----- | ------------------------------------------------------------------------- |
| None        | —     | —                                                                         |
| Batt V      | Batt  | Battery voltage (e.g. `3.92V`)                                            |
| Batt %      | Batt  | Battery percentage using LiPo curve anchored at the low-battery threshold |
| Temperature | Temp  | °C from onboard sensor                                                    |
| Humidity    | Hum   | % from onboard sensor                                                     |
| Pressure    | Pres  | hPa from onboard sensor                                                   |
| GPS         | GPS   | `lat lon` decimal degrees, or `no fix`                                    |
| Altitude    | Alt   | metres from onboard sensor (GPS or barometric)                            |
| Luminosity  | Lux   | lux from onboard sensor                                                   |
| CO₂         | CO2   | ppm from onboard sensor                                                   |
| Contacts    | Nodes | Total contacts in the mesh                                                |
| Messages    | Msgs  | Total unread message count                                                |

Sensor fields show `--` when the sensor is not connected or has no data.

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### Configuring fields

**Hold Enter** (or press the **Context menu** key) on the Clock page to open the Dashboard Config screen, where each of the three field slots can be cycled with **LEFT/RIGHT**.
