Product Introduction
Diagram showing the Walnut Camera with its key components: Status indicator, Detachable ND filter, Microphone, Type-C port, Memory card slot, Power button, M button, USB Magnetic Connector, and Buzzer.
Button Operations
| Button | Action | Description |
|---|---|---|
| Power button | Single press (Off state) | Turn on the camera. |
| Single press (On state) | Record/Stop recording. | |
| Press for 3 seconds | Turn off the camera. | |
| Function button (M button) | Single press | Switch resolution. |
| Press for 3 seconds | Turn on/off WIFI (SSID: CADDX_XXXXXX). |
If the camera is unresponsive, press and hold the power button for 10 seconds to force power off.
Note: When recording, a slow flash of the indicator corresponds to high battery power, and a fast flash corresponds to low battery power.
Wiring
Wiring Diagram for Buck Module:
- Yellow wire: KEY (FC UART TX)* - This signal line can remotely control the camera through the flight controller. Please read relevant precautions.
- Black wire: GND
- Red wire: Vbat+ (5~25.2V)
Power Supply and Remote Control
The Walnut camera supports two power supply modes: a built-in battery and an external 5~25.2V power supply. It also supports remote control of the camera's power on/off and start/stop recording functions.
Example Configuration with Betaflight F405 Flight Controller (using TX1 pin):
To configure remote control for recording on/off:
- Enter the following commands in Betaflight CLI:
resource SERIAL_TX 1 NONE// Disable the serial port function of the TX1 pin.resource PINIO 1 A09// Configure the TX1 pin (example uses A09, adjust for your flight controller) as PINIO function No. 1.set pinio_box = 40,255,255,255// Set the PINIO function range.save// Save configuration.- Next, map the No. 1 PINIO function (USER1) to an AUX channel in Betaflight Configuration.
The trigger mode is a low-level trigger. Moving the cursor from the yellow area to the white area and back to yellow triggers the camera to start or stop recording.
USB Magnetic Connector
The USB connector attaches to the back cover of the Walnut camera. Ensure the magnetic surface is clean and free of debris for optimal contact. Note: The power connector is not suitable for drones with severe vibration or intense movement, as it may detach.
Data Transmission
Data can be accessed via three methods:
- Method 1: Directly insert the memory card into a card reader.
- Method 2: Connect a Type-C cable to the USB port on the side of the camera.
- Method 3: Connect a Type-C cable to the USB magnetic connector.
APP Download and Usage
- Step 1: Scan the QR code or search for "CaddxFPV" in the App Store to download and install the CaddxFPV app.
- Step 2: Turn on your phone's WIFI. Short press the camera's power button to turn it on. Once the buzzer sounds, long press the M button to enable the camera's WIFI.
- Step 3: Open the CaddxFPV app and tap "Connect Now". Connect to the WIFI named "Caddx_*****" (password: "12345678"). After connection, tap back and enter the camera interface.
- Step 4: Tap the gear icon in the lower right corner of the app to configure camera parameters.
APP View Content
After shooting, connect to the app to access the album page and view your footage. You can also take photos and videos directly through the app.
Mounting Case
The camera mounting adapter helps protect the camera from damage due to falls. Select a suitable base for installation.
Precautions
Regarding Accessories:
- 1: Contains small parts; keep away from children to prevent swallowing.
- 2: Not recommended for use during high-intensity exercise, as the camera or accessories may detach.
- 3: Keep the magnetic surface clean to ensure good connection.
Regarding Firmware Upgrade:
- It is recommended to upgrade the firmware upon first use.
- Ensure the camera is fully charged before upgrading.
- Card upgrade steps:
- (1) Delete any old firmware from the TF card.
- (2) Copy the latest firmware to the TF card.
- (3) Insert the TF card into the camera's TF card slot.
- (4) Short press the power button to turn on the camera.
- (5) The camera's blue light will flash quickly, indicating firmware flashing mode.
- (6) When the indicator light turns green, firmware flashing is complete.
Indicator Status
| Camera Status | Indicator Status |
|---|---|
| Camera is power on | Steady green light (default; color varies by mode) |
| Camera flashing firmware | Blue light flashes quickly |
| Camera is charging | Steady red light |
| 4K recording mode | Steady green light |
| 2.7K recording mode | Steady blue light |
| 1440P recording mode | Steady cyan light |
| 1080P recording mode | Steady cyan light |
| Charging while recording | Steady red light, indicator light flashes slowly |
| Battery Indicator (during recording) | |
| Battery above 70% | Light flashes once every 2 seconds |
| Battery 20% - 70% | Light flashes once every 1 second |
| Battery below 20% | Light flashes once every 0.5 seconds |
Note: The effective distance of the camera's WIFI transmission (with no interference and obstruction) is 10 meters. The effective transmission distance may vary depending on usage scenarios.
