Receiver Operation

The receiver is the device a camera operator uses to visually check their own Tally state. Through the OLED screen, LED indicator, and button, you can intuitively tell whether the current camera is LIVE (PGM) or READY (PVW).

What is a receiver#

A receiver is a small display device mounted on a camera that provides the following functions:

• OLED screen: shows camera ID, Tally state, RF signal strength, and battery level
• LED indicator: PGM (red), PVW (green) visual alert
• Button: change camera ID, cycle OLED pages
• LoRa reception: receives Tally data wirelessly from the Master

Camera ID assignment#

Assign a camera_id to the receiver to associate it with a specific camera.

Long-press the button#

1. 1
   Long-press the button

   With the receiver powered on, press and hold for about 2 seconds
2. 2
   Enter CAMERA ID mode

   A camera ID popup appears on the OLED
3. 3
   Cycle ID (800ms interval)

   camera_id cycles in the order 1 → 2 → … → 20 → 1
4. 4
   Release the button

   Release when the desired ID is shown
5. 5
   Auto save

   Saved automatically to NVS

Camera ID change

Verify assignment#

After assignment, you can check the current camera_id on the OLED screen:

• Tally page: your camera ID is highlighted at the top
• System Info page: check via the Camera ID field

Reading the screen#

The receiver OLED has 3 pages. Cycle pages with a short button press:

Tally page (default)#

Tally page

• Your ID highlighted: if your camera is LIVE (PGM) a rotating dashed animation is shown; if READY (PVW), a static thin dash is shown
• PGM/PVW list: shows the currently on-air/scheduled camera numbers

LIVE state (rotating dashes) · READY state (static dashes)

LIVE

READY

System Info page#

System Info page

• Basic info such as Camera ID, Uptime, firmware Version

RX Stats page#

RX Stats page

• RSSI (signal strength), received packet rate, error count, and other RF communication status

STOPPED overlay#

When the STOP state occurs (e.g. invalid license), a STOPPED overlay is shown on every page.

STOPPED overlay

LED indication#

The receiver LED lets you grasp the Tally state at a glance.

LED color meaning#

LED brightness adjustment#

Adjust the LED brightness from the Master Web UI (see Web UI):

1. Open the Devices page
2. Find the receiver
3. Adjust 0-100% with the Brightness slider
4. Click the Save button

Button operation#

The receiver button is a single button that performs multiple functions.

Operation summary#

Operation example#

Page cycling:

short press → Tally → System Info → RX Stats → Tally → ...

Camera ID change:

long press → "CAMERA ID: 1" popup → after 0.8s "CAMERA ID: 2" → after 0.8s "CAMERA ID: 3" → ... → release at the desired ID → save complete

Battery management#

The receiver runs on a built-in battery; you can check the battery level on the OLED and the Master Web UI.

Check battery#

OLED screen:

• No battery display on the System Info page (only the Master can check it via RF packets)
• Estimate low battery from LED blinking/turning off

Master Web UI:

• The Devicespage shows each receiver's battery level
• Check the exact level via the Voltage value

Low battery behavior#

As the battery runs low, the receiver behaves in the following order:

1. 1
   LED brightness decreases

   50% → 25% → 10%
2. 2
   LED blinks

   Enters warning mode
3. 3
   Final warning

   A 10s countdown is shown on the OLED
4. 4
   Deep Sleep

   Automatic power off

Low Battery

Deep Sleep

Charging method#

1. Connect a USB-C cable
2. The LED lights orange while charging
3. The LED turns off when charging completes
4. Charging time: about 2-3 hours