1. పరిచయం
The VJOYCAR G20 GPS Digital Speedometer HUD is designed to display real-time driving speed directly from GPS satellites. This head-up display offers a clear, large-font readout, making it easy to monitor your speed without diverting your attention from the road. It is universally compatible with all vehicles, including cars, trucks, SUVs, ATVs, pick-up trucks, scooters, golf carts, buses, trains, bikes, and motorcycles, as it operates independently of the vehicle's engine or OBD port.
The device features a 10 Hz high refresh rate VJOYCAR chipset, ensuring rapid and accurate speed updates. Its simple plug-and-play design requires no complex settings or button interactions, making installation and use straightforward. The G20 automatically powers on when the vehicle's ACC is detected as on, and powers off when the ACC is off, ensuring no power consumption when not in use.

Figure 1.1: The VJOYCAR G20 GPS Digital Speedometer HUD with its included USB cable, non-slip mat, and packaging.
2. ప్యాకేజీ విషయాలు
ప్యాకేజీని తెరిచినప్పుడు, దయచేసి కింది అంశాలన్నీ చేర్చబడ్డాయో లేదో తనిఖీ చేయండి:
- VJOYCAR G20 HUD Unit (Host)
- 2-meter USB Cable
- నాన్-స్లిప్ మ్యాట్
- వినియోగదారు మాన్యువల్ (ఈ పత్రం)

Figure 2.1: Illustration of the VJOYCAR G20 HUD unit, 2m USB cable, non-slip mat, user manual, and gift box.
3. సెటప్ మరియు ఇన్స్టాలేషన్
The VJOYCAR G20 is designed for simple plug-and-play installation, requiring no complex wiring or configuration. Follow these steps to set up your device:
- ఒక స్థానాన్ని ఎంచుకోండి: Place the HUD unit on your dashboard in a position that allows for clear visibility without obstructing your view of the road. The included non-slip mat can be used to secure the device.
- పవర్ కనెక్ట్ చేయండి: Connect the provided USB cable to the Mini USB port on the HUD unit. Plug the other end of the USB cable into a USB port in your vehicle. If your vehicle does not have a USB port, you will need a car adapter (not included) to provide power.
- Initial GPS Signal Acquisition: Upon first use, the device will take approximately 10-30 seconds to acquire a GPS signal. Ensure the vehicle is outdoors and not in an underground parking lot or tunnel for proper signal reception. Once connected, the display will show "0" or the current speed.

Figure 3.1: The USB cable connection for the VJOYCAR G20 HUD, illustrating its plug-and-play functionality.

Figure 3.2: The VJOYCAR G20 HUD placed on a car dashboard, displaying speed.
సెటప్ ప్రదర్శన వీడియో
Video 3.1: This video demonstrates the simple setup process of the VJOYCAR G20 Digital Speedometer HUD, including connecting the USB cable and placing the device on the dashboard. It also shows the device in operation, displaying speed in real-time.
4. ఆపరేటింగ్ సూచనలు
The VJOYCAR G20 operates automatically once connected to power and a GPS signal is acquired. There are no buttons or manual settings required for basic operation.
- ఆటోమేటిక్ పవర్ ఆన్/ఆఫ్: The device will automatically turn on and display the driving speed when it detects that the car's ACC (Accessory) power is on. When the car's ACC is turned off, the device will automatically power down, ensuring no battery drain.
- స్పీడ్ డిస్ప్లే: The large, green digital display shows your current speed in MPH (Miles Per Hour). The speed data is collected directly from GPS satellites, providing an accurate reading independent of your vehicle's internal systems.
- యూనివర్సల్ అనుకూలత: Due to its GPS-based operation, the G20 is compatible with virtually all types of vehicles, as it does not interfere with the car's engine or circuit board.

Figure 4.1: Diagram illustrating the accurate speed display of the GPS Digital Speedometer, showing consistency with dashboard readings.

Figure 4.2: This image demonstrates the universal compatibility of the VJOYCAR G20 HUD with various vehicle types, including pick-up trucks, buses, new energy vehicles, gasoline/hybrid vehicles, and motorcycles, all connecting via a standard USB cable.
5. నిర్వహణ
To ensure the longevity and optimal performance of your VJOYCAR G20 GPS Digital Speedometer HUD, please follow these simple maintenance guidelines:
- శుభ్రపరచడం: Use a soft, dry cloth to wipe the display and the device's exterior. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the surface or internal components.
- నిల్వ: ఎక్కువసేపు ఉపయోగంలో లేనప్పుడు, పరికరాన్ని ప్రత్యక్ష సూర్యకాంతి మరియు తీవ్రమైన ఉష్ణోగ్రతలకు దూరంగా చల్లని, పొడి ప్రదేశంలో నిల్వ చేయండి.
- నిర్వహణ: Handle the device with care to prevent drops or impacts, which could damage the internal electronics or the display.
6. ట్రబుల్షూటింగ్
If you encounter any issues with your VJOYCAR G20 HUD, please refer to the following common problems and their solutions:
- పరికరం ఆన్ చేయడం లేదు:
- Ensure the USB cable is securely connected to both the HUD unit and the vehicle's USB port or car adapter.
- Verify that the vehicle's ACC power is on. The device is designed to power on automatically with the vehicle.
- If using a car adapter, ensure it is functioning correctly and providing 5V power.
- No GPS Signal / Display Shows "0" for Extended Period:
- For first-time usage or after a long period of inactivity, it may take 10-30 seconds for the device to acquire a GPS signal.
- Ensure the vehicle is outdoors with a clear view of the sky. The device cannot acquire a GPS signal indoors, in underground parking lots, or in tunnels.
- Relocate the device on the dashboard to a position with less obstruction from the vehicle's roof or other components.
- Speed Reading Differs from Car Dashboard:
- The GPS speedometer collects data directly from satellites, while car dashboards typically measure speed from tire rotation. A difference of 1%-5% is normal and expected. The GPS reading is generally considered more accurate.
- Display Brightness Issues (Day/Night):
- The device is designed for clear visibility day and night. Ensure the display is not obstructed by direct sunlight or reflections. Adjusting the placement on the dashboard might help.
7. స్పెసిఫికేషన్లు
| ఫీచర్ | వివరాలు |
|---|---|
| మోడల్ సంఖ్య | G20 |
| బ్రాండ్ | VJOYCAR |
| ప్రదర్శన రకం | Digital Head-Up Display (HUD) |
| స్పీడ్ సోర్స్ | GPS Satellites |
| రిఫ్రెష్ రేట్ | 10 Hz (High Refresh Rate) |
| పవర్ ఇన్పుట్ | USB (5V) |
| మెటీరియల్ | యాక్రిలోనిట్రైల్ బుటాడిన్ స్టైరీన్ (ABS) |
| వస్తువు బరువు | 0.11 కిలోలు |
| UPC | 610521672619 |
| మొదట అందుబాటులో ఉన్నవి | అక్టోబర్ 25, 2022 |

చిత్రం 7.1: క్లోజప్ view of the VJOYCAR G20 HUD display, showing the clear green digital readout.
8. వారంటీ మరియు మద్దతు
VJOYCAR is committed to providing high-quality products and excellent customer service. The G20 GPS Digital Speedometer HUD comes with a manufacturer's warranty. For specific warranty details, please refer to the product packaging or contact VJOYCAR customer support.
Our client service is available 7 days a week, 24 hours a day. If you have any questions, concerns, or require assistance with your device, please do not hesitate to contact us. We are here to help.
For further assistance, please visit the official VJOYCAR store or contact their customer support channels.





