Car Head Up Display

Introduction

The HUD (Head Up Display) is designed to display essential car dashboard information, such as speed, RPM, water temperature, and trip distance. Its primary function is to keep the driver's eyes on the road, preventing the dangerous habit of looking down at the dashboard.

Kindly Attention

The Model C5 features an OBD+GPS dual system. Please switch to the GPS system when the OBD mode is not available. The OBD2 mode operating voltage is 5V~18VDC (12VDC/200mA).

Product Functions

The display includes several key features:

• 1. Compass: Shows the driving direction when the vehicle speed exceeds 5 KM/H. It also displays navigation information when using navigation features. Directions indicated are West, Northwest, North, Northeast, East, Southeast, South, and Southwest.
• 2. Light Sensor: The HUD automatically adjusts its brightness according to the ambient environment.
• 3. Lane Display: When using the mobile phone APP for navigation, this feature displays the current lane the vehicle is driving in (Note: This function is not supported in overseas versions).
• 4. Icons: Displays include a [Fault code icon], [Phone connection icon], [OBD system status], and [GPS system status]. The GPS icon flashes until a satellite signal is acquired.
• 5. Camera Monitoring Area: (Not supported in overseas versions).
• 6. Multi-function Area: Displays various data including RPM, water temperature, voltage, fuel consumption, altitude, mileage, navigation distance, driving time, power test results, satellite count, and the clock.
• 7. Data Abbreviations:
  • RPM: Rotating speed
  • °C/F: Water temperature
  • V: Voltage
  • LHK: Fuel consumption
  • ASL: Altitude
  • TRIP: Travel mileage
  • D: Navigation distance point
  • MIN: Travel time
  • a+: 100km acceleration test
  • GPS: Satellite number (GPS system is usable after 5 satellites are found)
• 8. Vehicle Speed Display: Shows the current speed of the vehicle.
• 9. Speed Unit: Displays speed in MPH (Miles per hour) or KM/H (Kilometers per hour).
• 10. RPM Icon: Indicates the RPM status.

Button Functions

The device has five buttons with short press (approx. 1 second) and long press (approx. 3 seconds, release after screen change) functions:

• 1. 'M' Button:
  • Short Press:
    • (1) In OBD system: Switches between RPM, voltage, water temperature, altitude, fuel consumption, driving time, mileage, clock, and 100 kilometers acceleration.
    • (2) In GPS system: Switches between voltage, altitude, travel time, travel mileage, clock, 100km acceleration, and number of satellites.
  • Long Press:
    • (1) Enters the menu settings (Menu 1-14).
    • (2) Saves settings and exits.
• 2. '<' Button:
  • Short Press:
    • (1) Switches between OBD and GPS modes within 5 seconds when the power-on screen flashes.
    • (2) Switches the RPM icon display.
    • (3) Decreases menu or parameter value after entering settings.
  • Long Press: Turns the buzzer off, and pressing again turns it back on.
• 3. '>' Button:
  • Short Press:
    • (1) Switches between OBD and GPS modes within 5 seconds when the power-on screen flashes.
    • (2) Increases menu or parameter value.
  • Long Press: Clears engine fault codes (when all LED lights are lit); pressing again returns to the main page.
• 4. Power Switch: Long press to turn the device off, press again to turn it on.
• 5. Connection Port: Interface for the OBD line and cigarette lighter line.

System Selection

Short press the '<' button to switch between OBD and GPS modes. If the OBD icon flashes, the system will automatically select the last used mode after 5 seconds of inactivity.

OBD System (For OBD2 Cars)

Functions include: Vehicle speed, engine RPM, fuel consumption, water temperature, voltage, clock, mileage, travel time, travel distance, altitude, number of compass satellites, and RPM icon.

GPS System (For All Cars)

Functions include: Vehicle speed, time, voltage, travel time, travel distance, travel direction, altitude, satellite number, and speed icon.

If the OBD system is not compatible, switch to the GPS system and connect using the USB cable.

GPS System Use

When the GPS icon is flashing, it indicates the system is searching for satellites. Move the car to an open road. Once a satellite is found, the GPS light will stop flashing and remain steady for normal use.

Restore Settings

To restore default settings: Unplug the power, long press the 'M' button, plug the power back in, and release the 'M' button once the screen is fully lit.

Clear Fault Codes

1. Power on the device and ensure the connection agreement is active.
2. Long press the '<' key; the HUD screen will light up and clear the fault code.
3. Long press the '<' key again to exit.

Turn Off/On the Buzzer

Long press the '>' button to turn the buzzer off; press again to turn it on.

Display Mode Switch

After the HUD is turned on, short press the '<' key to cycle through display modes: concise, racing, and standard.

How to Use Navigation

To use navigation features, connect your HUD to your smartphone via Bluetooth. The companion APP can then display synchronized navigation information. Compatible phones require Android 4.0 or iOS iPhone 5 or later.

For Android Phones: Search for the keyword 'WiiYii' in the Android Market.

For iPhones: Search for the keyword 'WiiYii' in the App Store.

Scan the QR codes below to download the WiiYii app:

[QR code for WiiYii Android app]

[QR code for WiiYii iPhone app]

App Installation and Connection:

• Download and install the "WiiYii" APP.
• Actuate your car, manually turn on Bluetooth, and position your phone.
• Click the WiiYii icon; the system will automatically search for and connect to Bluetooth.

If the mobile phone cannot connect to the Bluetooth device correctly, please follow the instructions provided in the FAQ section.

Troubleshooting and FAQs

General Notes

If the OBD system cannot be connected for normal display, switch to the GPS system. Ensure the mobile phone's Bluetooth is not connected to other devices; if so, delete the paired device and re-bind WYHUD. Turn Bluetooth off and on again, or restart the phone.

Setting Mode (Menu Mode)

To enter the settings menu (1-14), long press and hold the 'M' button. The menu displays sequentially. Short press '<' to increase menu options, and '<' or '>' to adjust parameter values. Short press 'M' to return to the menu, and long press 'M' to save and exit.

Reminders and Warnings

Disconnect the HUD if the car is not driven for more than a week. Car batteries typically have a standby time of about one month. It is recommended to unplug the OBD device when the car is unused for extended periods 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 on another car; if still not working, check the OBD diagnostic interface for issues. If found, repair and reconnect the device.
• 2. Only car voltage displays and automatic power off after 30 seconds:
  • This product is only available for OBDII and EOBD cars in OBD2 mode.
  • OBD2 is a car protocol suitable for cars produced after 2008.
  • This product's OBD2 mode does not support OBD I and JOBD.
  • Switch to the GPS system using the USB cable. Within 5 seconds of power-on, short press the '<' button to select the GPS system.
• 3. Wrong operation leads to crashes:
  • Are there 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 can cause crashes. Unplug other OBD devices and perform a factory reset (refer to menu settings).
• 4. Inaccurate speed:
  • Please verify that the unit (KM/mile MPH) is correct. Refer to settings item 9 for speed unit switch.
  • Manufacturers often increase the speed displayed on the dashboard by 5-7% when the car leaves the factory. International standards are based on trip computer data.
  • Fine-tune the vehicle speed. For example, if the instrument displays 100 Km/h and the HUD displays 105 Km/h, adjust the parameter value to 102.
• 5. Unclear in daytime with double shadow:
  • There is a high-brightness reflective film.
  • 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, and hybrid cars will turn off during driving:
  • Method one: Enter menu item 11 and adjust the value to 1. (See menu settings).
  • Method two: Set shutdown delay to 300 seconds on item 12, so that it turns off after 5 minutes.
• 7. HUD cannot auto shut down: After the car engine stops, if RPM and speed do not turn off, enter the setting menu, navigate to item 11, and set the voltage to 13.2V or 13.5V. The car can then be turned off after 3 minutes. (See menu settings).
• 8. Shut down during driving after adjusting the voltage: After voltage is set, if the machine turns off during driving, it is recommended to adjust the value of item 11 to 12.8V or 12.5V.
• 9. Shut down and restart: If 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 setting 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 <13.2V for 3 minutes. Long press the scroll button for 5 seconds to enter setting menu item 11 and adjust the parameter value voltage to 13.0V or 12.8V.
• 4. Inaccurate speed:
  • Check whether the unit (kilometers KM/mile MPH) is correct. (Switch the speed unit on item 9).
  • When the car leaves the factory, the manufacturer increases the speed displayed on the dashboard by 5-7%. International standards are based on satellite data.
  • Fine-tune the vehicle speed. For example, if the instrument displays 100 Km/h, the HUD displays 105 Km/h; adjust 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 <5V. Please use an OBD cable for power supply.
• 6. Wrong driving direction or random jump: This will be normal once the speed is >5 KM/H.
• 7. Speed is still on after the car stops: In underground parking lots, tunnels, and overpasses, obstructions can cause unstable signals and satellite drift. Please drive 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 (see 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 icon; the system will automatically search for and connect to Bluetooth.
• 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 mobile phone's Bluetooth is connected to other devices; if so, delete the paired Bluetooth devices and then bind WYHUD. Turn off Bluetooth and then turn on the phone's Bluetooth, or restart the phone. Make sure that other phones have Bluetooth turned off.
• 4. Phone cannot search for WiiYii APP: Check the phone system version; it should support Bluetooth 4.0, Apple iOS 9 or above, or Android 4.4 or above. The mobile phone needs to search for WYHUD via Bluetooth and have its network open. Turn on GPS navigation positioning; you can enter the navigation address after successful positioning.
• 5. App Bluetooth connection is successful, no display of input address: Please turn on location services, open your network, and check the signal. Move to a location with a strong signal and enter the address again.
• 6. HUD stuck during navigation or when switching the display interface (speed display is normal): Turn off the power-saving mode of the phone, turn off the screen forbidden function, or click to enter the phone navigation page and stay on the phone navigation page.
• 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.