Car Head Up Display
Model: D1
Product Introduction
HUD stands for Head Up Display. Its primary function is to reflect essential car dashboard information, such as speed, RPM, water temperature, voltage, and trip distance, onto the windshield. This allows drivers to keep their eyes on the road, avoiding the danger of looking down to read the instrument panel.
Special Reminder
The product operates within a voltage range of 5V~18Vdc (typically 12Vdc/200mA). It features a dual system, allowing users to choose between OBD and GPS modes. If the OBD system is not compatible with the vehicle, users can switch to the GPS system by plugging in the USB cable.
Product Functions
The display includes the following key areas and indicators:
- Multi-function Area: Displays RPM, water temperature, voltage, fuel consumption, altitude, driving distance, navigation distance, driving time, power test results, number of satellites, and clock.
- RPM Indicator: Displays rotating speed.
- Speed Indicator: Displays current vehicle speed.
- Speed Unit: Shows the unit of speed, either KM/H (Kilometer/hour) or MPH (Mile/hour).
- System Icons: Indicates the active system (OBD or GPS) and may show fault codes.
- Compass/Direction Indicator: Displays navigation information when navigating. Once a satellite signal is acquired, the GPS light stops flashing and remains steady. It also shows driving direction (N, S, W, E, NW, SW, SE, NE) when vehicle speed exceeds 5 KM/H.
- Lane Display: Shows the vehicle's current lane based on navigation from a connected smartphone app.
- Camera Icon: Indicates camera functionality (if applicable).
- Light Sensor: Automatically adjusts the HUD's brightness based on ambient light conditions.
- Display Voltage, Navigation Distance, Satellites: Shows these specific data points.
- Legend (V, KM, GPS): Clarifies the meaning of the voltage (V), navigation distance (KM), and number of satellites (GPS) indicators.
Button Functions
The device features several control buttons:
- 1. OBD connector/USB connector: For power and data connection.
- 2. Scroll button: This button can be pulled up, pulled down, short-pressed, or long-pressed to navigate menus and confirm selections.
- 3. System selection Button: Used to switch between OBD and GPS system modes. Pulling up selects OBD mode, and pulling down selects GPS mode.
Scroll Button Operations:
- Vertical short press: (Quick press and release within 1 second) Used to switch display modes or select menu options after entering the setup menu.
- Vertical long press: (Press for over 2 seconds and release) Used to enter the setting menu (Items 1-14) or to save and exit settings.
- Pull up: Switches to and displays the yellow "8888" interface or moves an option when in settings.
- Pull down: Switches to and displays the blue "888" interface or moves an option when in settings.
- Turn on/off buzzer: Pulling the scroll button up for 2 seconds turns off the buzzer (indicated by three beeps); pressing again turns it on (indicated by two beeps).
System Modes
OBD System (For OBD2 cars)
Functions include: vehicle speed, RPM, fuel consumption, water temperature, voltage, clock, driving mileage, driving time, driving direction, altitude, number of satellites, and RPM icon.
GPS System (For all cars)
Functions include: vehicle speed, time, voltage, driving time, driving distance, driving direction, altitude, number of satellites, and speed icon.
System Switching: If the OBD system is not compatible, pull down the system selection button to switch to the GPS system and connect via the USB cable.
GPS System Use
When the GPS is flashing, it is searching for stars. Move the car to an open road. Once the satellite is found, the GPS light will stop flashing and remain steady for normal use.
Restore Settings
Unplug the power. Long press the scroll button without releasing it, then plug in the power. Release the scroll button once the screen is fully lit.
Clear Fault Codes
After the OBD system is displayed normally, pull up the scroll button for 2 seconds (when the screen is fully on), then pull down again for 2 seconds to clear the fault code.
Navigation
To use navigation, connect the HUD to your smartphone via Bluetooth. A compatible app will then display synchronized navigation information. Compatible phones require Android 4.0 or iOS 5 (or later). For Android phones, search for 'WiiYii' in the Android Market. For iPhones, search for 'WiiYii' in the App Store.
App Installation and Connection:
- Download and install the WiiYii software.
- Actuate your car and manually turn on Bluetooth and location services on your phone.
- Click the WiiYii app icon; the system will automatically search for and connect to Bluetooth.
Troubleshooting Bluetooth Connection:
- If the mobile phone cannot connect correctly, ensure the HUD is displayed normally. If the OBD system is not connected, switch to the GPS system display.
- If the mobile phone's Bluetooth is connected to other devices, delete the paired Bluetooth device and re-bind WYHUD.
- Try turning Bluetooth off and on again, or restarting the phone.
Setting Mode (Menu Mode)
To enter the setting menu, long-press the scroll button for 2 seconds. Use short presses to select menu items (1-14). Pull up to change parameter values, and long-press the scroll button for 2 seconds to save and exit.
| Menu | Functions | Adjust Range | Explanation | Default Value | Setting Screen Description |
|---|---|---|---|---|---|
| 0 | Speed | 50-150 | Adjust when speed is not correct. For example, if the instrument displays 100 KM/H and the device displays 105KM/H, adjust the parameter value to 102. | 107 | Displays '107' in the main speed area, '180' in another digital readout, and '88.8' in a third area. |
| 1 | Fuel Consumption | 50-150 | Adjust parameter value when there is an error in fuel consumption. | 100 | Displays '100' in the fuel consumption area, '180' and '88.8'. |
| 2 | RPM Alarm | 100-7500 | Alarm after the speed reaches the set default value of 7500 rpm. | 7500 | Displays '7500' in the RPM area, '18888' and '88.8'. |
| 3 | Alarm Mode | 0-1 | 0 = Close alarm, 1 = Four levels alarm. | 0 | Displays an alarm indicator ('0' or '1'), '18888' and '88.8'. |
| 4 | Over-speed Alarm | 30-250 | Users can freely set this value for over-speed alarms above 150 KM/H. | 150 | Displays '150' in the speed area, '18888' and '88.8'. |
| 5 | Brightness Level | 0-5 | 0 = automatic photosensitive mode, 1-5 = manual adjustment. | 0 | Displays a brightness level indicator ('0' or '1-5'), '188' and '88.8'. |
| 6 | Water Temperature Alarm | 50-150 | Alarm when water temperature exceeds 120°C; users can freely set this value. | 120 | Displays '120' in the temperature area, '188' and '88.8'. |
| 7 | Voltage Alarm | 0-15.0 | Alarm when voltage is below 10V; users can freely set this value. | 10.0 | Displays '10.0' in the voltage area, '188' and '88.8'. |
| 8 | Fatigue Driving Reminder | 1.0-8.0 | Reminds after continuous driving exceeds the default value of 4.0 hours. | 4.0 | Displays '40' in a driving time indicator, '188' and '88.8'. |
| 9 | Speed Unit | 1-2 | 1 = KM/H, 2 = MPH. | 1 | Displays 'KM/H' or 'MPH' unit indicator, '88.8' and '88.8'. |
| 10 | Temperature Unit | 1-2 | 1 = Celsius, 2 = Fahrenheit. | 1 | Displays '°C' or '°F' unit indicator, '88.8' and '88.8'. |
| 11 | Shutdown Voltage | 0-15.0 | 1. Automatic start-stop or diesel-electric hybrid adjust to 1. 2. Adjust the voltage to 13.2 V when unable to shut down. | 0 | Displays a voltage value (e.g., '13.2'), '888' and '88.8'. |
| 12 | Shutdown Time | 5-300 | Sets shutdown delay. For example, 20 seconds after fire break, or 180 seconds. | 20 | Displays '20' in the time area, '1888.8' and '88.8'. |
| 13 | Time Calibration | 00:00-23:00 | Time adjustment. Choose your area's time zone after searching for satellites to directly adjust to local time. (Dial up to increase time zone time, dial down to decrease). Displays 8 before star found, and GMT+8 (China time) after. | Displays 8 before star found, and GMT+8 (China time) after. | Displays time (e.g., '8:00' or '13:00'), '88.8' and '88.8'. |
| 14 | Factory Reset | 0-1 | The default value is 0. When set to 1, long press scroll button for 5 seconds to save and exit. | 0 | Displays '0' or '1', '888' and '88.8'. |
Remind Warning
Please disconnect the HUD if you do not drive for more than a week. Car batteries typically have a standby time of one month. It is recommended to unplug the OBD device when the car is not used for a long time, due to varying vehicle conditions.
OBD FAQ
1. No function is displayed, no power
Check if the OBD cable is tightly connected. Pull down repeatedly to confirm. Try it on another car. If it's still not working, analyze if the issue stems from the OBD diagnostic interface. If so, repair it and reconnect the device.
2. Only the car voltage displays and automatic power off after 30 seconds
- This product is only available for OBDII and EOBD cars when in OBD2 mode.
- OBD2 is a car protocol (U.S.A Cars: 2003, Other regions: 2008).
- This product's OBD2 mode does not support OBD I and JOBD.
- Switch to the GPS system using the USB cable to display.
3. Wrong operation leads to crashes
- Check for other OBD devices on your car (e.g., parking sensor, TPMS, lock lift window, ELM27).
- Has your car been modified or "brushed" (e.g., central navigation, electronic throttle controller, fixed speed cruise, system reset, engine start/stop, keyless entry, or remote start)? These can cause crashes. Unplug other OBD devices and perform a factory reset (refer to menu settings).
Please switch to the GPS system, which should be connected with a USB cable.
4. Inaccurate speed
- Please check that the unit is correct (KM/mile MPH). Refer to settings: Item 9 for speed unit switch.
- Car manufacturers often increase the displayed speed by 5-7% compared to the actual speed. International standards are based on data from the trip computer.
- Fine-tune the vehicle speed. For example, if the instrument displays 100 Km/h and the HUD displays 105Km/h, adjust the parameter value to 102.
5. Unclear in daytime with double shadow
This may be due to a high-brightness reflective film. Try the following:
- Wipe the glass clean.
- Spray a little water.
- Tear off protective film "1" and stick the reflective film on the windshield.
- Tear off protective film "2".
6. Automatic start-up will auto-off when the brake is stepped on in hybrid cars
Method One: Enter menu item 11 and adjust the value to 1. (See menu settings)
Method Two: Set the shutdown delay to 300 seconds on item 12, so it turns off after 5 minutes.
7. HUD cannot auto shut down
After the car engine stops, if the RPM and speed do not turn off, enter the setting menu, go to item 11, and set the voltage to 13.2V or 13.5V. The car should then turn off after 3 minutes. (See menu settings)
8. Shut down during driving after adjusting the voltage
If the machine turns off during driving after the voltage is set, it is recommended to adjust the value of item 11 to 12.8V or 12.5V.
9. Shut down and restart
Indicates that the voltage is higher than the starting voltage (13.2V). Enter the setting menu, switch to item 11, and set the voltage to 13.6-13.8V. The device can only be turned on after the vehicle voltage is higher than the set voltage.
GPS FAQ
1. Nothing on the screen, no power
Check if the USB interface has power or if the connection is loose. Pull it out and plug it in again several times, or replace the USB cable.
2. No speed
The GPS is flashing to search for stars. Please move the car to an open road. After the satellite is found, the GPS light will be on and off, and it can be used normally.
3. Cannot automatically turn on or turn off repeatedly during driving
When the OBD line is connected, the device will shut down if the voltage is less than 13.2V for 3 minutes. Long-press the scroll button for 5s to enter item 11 of the setting menu and adjust the parameter value voltage to 13.0V or 12.8V.
4. Inaccurate speed
- Check whether the unit is correct (kilometers KM/mile MPH). Switch the speed unit on item 9.
- Car manufacturers often increase the displayed speed by 5-7%. International standards are based on satellite data.
- Fine-tune the vehicle speed. For example, if the instrument displays 100 Km/h, adjust the HUD display to 105Km/h by adjusting the parameter value to 102.
5. The speed is stuck and does not work during driving
The power supply of the USB power cord is less than 5V. Please use an OBD cable for power supply.
6. Wrong driving direction or random jump
It will be normal until the speed exceeds 5 KM/H.
7. Speed is still on after the car stops
Underground parking lots, tunnels, and overpasses, where obstructions can cause unstable signals and satellite drift, require driving to an open road. If more than 5 satellites are found, it will be normal.
8. Check the number of satellites
Pull down the scroll button to switch to the GPS icon. More than 5 satellites can be displayed normally.
9. Cannot automatically turn off after the car shutdown
When the OBD cable is connected, the HUD will automatically shut down after 3 minutes. If the machine is not turned off after 5 minutes of stopping the engine, adjust the voltage setting parameter value of item 11 to 13.5V (See the menu settings).
Navigation FAQ
1. Install APP
Scan QR code to download this APP (refer to manual). For iPhones, search keyword 'WiiYii' in the App Store. For Android phones, search keyword 'WiiYii' in the Android Market.
- Please download this software.
- Manually turn on Bluetooth and location services.
- Click the WiiYii app icon; the system will automatically search for Bluetooth and connect.
2. Use APP
- After installing the APP software correctly, turn on Bluetooth on the mobile phone, turn on location services, and turn on network.
- Click the WiiYii APP; the system will automatically search for Bluetooth devices and connect.
3. APP Bluetooth connection is not successful
- The HUD needs to display normally.
- Check if the Bluetooth of the mobile phone is connected to other devices; delete paired Bluetooth devices and then bind WYHUD.
- Turn off Bluetooth and then turn it on again, or restart the phone.
- Ensure that other phones have Bluetooth turned off.
4. Phone cannot search for WiiYii APP
- Check the phone system version and ensure it supports Bluetooth 4.0, Apple system iOS 9 or above, or Android 4.4 or above.
- The mobile phone needs to search for WYHUD via Bluetooth; open your network.
- Turn on GPS navigation positioning. You can enter the navigation address after successful positioning.
5. App Bluetooth connection is successful, but no display of input address
Please turn on location services, open your network, check the signal, move to a place with a strong signal, and enter the address again.
6. HUD stuck during navigation or when switching the display interface, but speed display is normal
Turn off the phone's power-saving mode, turn off the screen forbidden function, or click to enter the phone navigation page and stay on it.
7. Navigation is 10-20 meters away from the indication point
Since the GPS positioning error is about 5-10 meters, it is normal for the satellite signal to be 10-20 meters away when the signal is weak.
