1. Introdución
This manual provides detailed instructions for the installation, operation, and maintenance of your HGLRC SPECTER F722 Lite Flight Controller. Designed for FPV drones, this flight controller integrates an ICM42688 Gyro and an ELRS 2.4G receiver, offering high performance in a compact form factor. Please read this manual thoroughly before use to ensure proper setup and safe operation.
2. Contido do paquete
Verify that all items listed below are included in your package. If any components are missing or damaged, please contact HGLRC support.
- 1x SPECTER F722 Lite Flight Controller
- 1x 25mm 8Pin Flight Control Cable
- 1x 90mm 2.4G T-type Antenna
- 1x 40mm 2.4G T-type Antenna
- 4x M3*8 Shock Absorbers

Image: The complete package contents, including the flight controller, cables, antennas, and shock absorbers.
3. Produto rematadoview
The HGLRC SPECTER F722 Lite is a high-performance flight controller designed for FPV applications. It features a powerful STM32F722 MCU, an ICM42688P gyroscope, and an integrated ELRS 2.4Ghz R2 receiver, providing precise control and minimal latency. Its compact size and lightweight design make it suitable for a wide range of FPV drones.

Imaxe: Arriba view of the HGLRC SPECTER F722 Lite Flight Controller, showing the main MCU, gyroscope, and ELRS module.

Imaxe: Parte inferior view of the HGLRC SPECTER F722 Lite Flight Controller, highlighting the USB port and other components.
4. Especificacións
Detailed technical specifications for the HGLRC SPECTER F722 Lite Flight Controller:

Image: A diagram illustrating the key product parameters and dimensions of the flight controller.
| Parámetro | Valor |
|---|---|
| FC Name | HGLRC F722 Lite |
| Firmware | HGLRCF722MINI_4.5.1 |
| MCU | STM32F722 |
| Xiroscopio | ICM42688P |
| Barómetro | DPS310 |
| Vol. Operativotage | 8.4V-25.2V (2-6S LiPo) |
| Saída BEC | 5V 2A |
| Caixa Negra | 16 MB |
| Serial UARTS | 5 |
| Receptor incorporado | ELRS 2.4Ghz R2 |
| OSD | Soportado |
| Orificios de montaxe | 20 x 20 mm, M3 |
| Tamaño | 28 x 28 mm |
| Peso | 4g |

Image: Visual representation of the flight controller's dimensions (28x28mm) and weight (approximately 4g).
5. Configuración e instalación
Careful installation is crucial for the performance and longevity of your flight controller. Follow these guidelines:
- Montaxe: Use the provided M3*8 shock absorbers to mount the flight controller onto your drone frame. The mounting hole pattern is 20x20mm. Ensure the arrow on the flight controller points towards the front of the drone.
- Conexión de alimentación: Connect the flight controller to your drone's power distribution board (PDB) or ESCs. The operating voltage range is 8.4V-25.2V (2-6S LiPo). Ensure correct polarity (VIN, GND).
- Conexións do motor: Connect your ESCs to the appropriate motor output pads on the flight controller. Refer to your ESC and motor documentation for specific wiring.
- Conexión do receptor: The SPECTER F722 Lite has a built-in ELRS 2.4Ghz R2 receiver. Ensure your ELRS transmitter is bound to this receiver. If using an external receiver, connect it to one of the available UARTs (e.g., RX1/TX1).
- Instalación de antena: Connect the provided 2.4G T-type antennas to the ELRS antenna connector on the flight controller. Position the antennas away from other electronics and carbon fiber for optimal signal reception.
- Conexións periféricas: Connect other peripherals such as FPV camera, VTX (video transmitter), GPS, or buzzer to the designated pads. The flight controller supports OSD.
- Intermitente de firmware: Connect the flight controller to your computer via USB. Use Betaflight Configurator (or similar software) to flash the recommended firmware (HGLRCF722MINI_4.5.1) and configure settings.
6. Instrucións de funcionamento
Once installed and configured, the HGLRC SPECTER F722 Lite Flight Controller is ready for operation. Basic steps include:
- Configuración inicial: After flashing firmware, open Betaflight Configurator. Navigate through the tabs to set up your drone's configuration, including accelerometer calibration, ESC protocol, motor directions, receiver modes, OSD elements, and PID tuning.
- Binding ELRS Receiver: If not already bound, put the flight controller into ELRS bind mode (usually by powering on/off three times rapidly or via Betaflight CLI command). Then, activate bind mode on your ELRS transmitter.
- Comprobacións previas ao voo: Before each flight, perform thorough pre-flight checks. Verify motor spin direction, control surface response, battery voltage, and FPV video feed.
- Armado e Desarmado: Configure an arming switch on your radio. Ensure the drone is on a stable, level surface before arming. Disarm immediately if any issues arise.
- Modos de voo: Set up various flight modes (e.g., Acro, Angle, Horizon) in Betaflight and assign them to switches on your radio for different flying experiences.
7. Mantemento
Regular maintenance helps ensure the reliability and longevity of your flight controller:
- Inspección: Periodically inspect the flight controller for any visible damage, loose connections, or signs of corrosion.
- Limpeza: Keep the flight controller clean and free from dust, dirt, and moisture. Use a soft brush or compressed air for cleaning. Avoid using liquids.
- Actualizacións de firmware: Check for official firmware updates from HGLRC or Betaflight. Updates can provide performance improvements, new features, or bug fixes.
- Protección ambiental: Protect the flight controller from extreme temperatures, direct sunlight, and excessive vibrations. Consider conformal coating for moisture protection in humid environments.
8 Solución de problemas
Se tes problemas, consulta os seguintes pasos comúns para a resolución de problemas:
- Sen enerxía:
- Check all power connections for correct polarity and secure soldering.
- Verifique o vol. da bateríatage está dentro do rango de 2-6S LiPo.
- Sen conexión co configurador de Betaflight:
- Ensure USB drivers are correctly installed (e.g., STM32 Virtual COM Port Driver, Zadig for DFU mode).
- Proba cun cable ou porto USB diferente.
- Ensure the flight controller is powered correctly.
- Motores que non xiran:
- Check ESC connections and ensure ESCs are calibrated.
- Verify motor direction and protocol settings in Betaflight.
- Ensure the drone is armed and throttle is above minimum.
- O receptor non responde:
- Confirm the ELRS receiver is properly bound to your transmitter.
- Comprobe as conexións da antena.
- Verify receiver protocol settings in Betaflight.
- Voo inestable:
- Recalibrate the accelerometer.
- Check for loose components or vibrations affecting the gyroscope.
- Review Configuración de axuste PID.
9. Información de seguridade
Operating FPV drones and associated electronics carries inherent risks. Adhere to the following safety precautions:
- Always disconnect the battery before performing any maintenance or wiring changes.
- Asegúrate de que todas as conexións estean seguras e debidamente illadas para evitar curtocircuítos.
- Never operate your drone near people, animals, or property.
- Be aware of local regulations and laws regarding drone operation.
- Use caution when handling LiPo batteries, as they can be dangerous if mishandled.
- Keep the flight controller and other electronic components away from water and moisture.
10. Garantía e soporte
For warranty information or technical assistance, please contact HGLRC customer support through their official website or the retailer where you purchased the product. Provide your product model and purchase details for efficient service.
Visit the official HGLRC store for more information: HGLRC Store





