Introduction
This manual provides essential information for the proper installation, configuration, and operation of your LDARC T20 Flight Controller Tower Stack. This integrated unit combines an F411 Flight Controller with a 4-in-1 30A Electronic Speed Controller (ESC), designed for 2-4S LiPo battery systems. Please read this manual thoroughly before use to ensure optimal performance and safety.
Product Overview
The LDARC T20 Tower Stack is a compact and efficient solution for small to medium-sized FPV drones. It integrates a powerful F411 Flight Controller with an advanced 4-in-1 30A ESC, simplifying wiring and reducing overall weight. The system supports Betaflight firmware for comprehensive configuration and tuning.
Figure 1: LDARC T20 Flight Controller Tower Stack components. This image displays the individual F411 Flight Controller board, the 4-in-1 30A ESC board, a capacitor, various connection cables, and mounting hardware (screws and standoffs).
Figure 2: Assembled LDARC T20 Flight Controller Tower Stack. This image shows the flight controller and ESC boards stacked together, secured by pink mounting standoffs and screws, illustrating the compact form factor.
Figure 3: LDARC T20 Flight Controller and ESC connection. This image highlights the connection between the F411 Flight Controller and the 4-in-1 30A ESC via a multi-wire ribbon cable, demonstrating how the two main components interface.
Specifications
T20 Flytower (Flight Controller)
- Input Voltage: 2-4S LiPo
- Firmware: LDARC_F411
- Configurator: Betaflight
- OSD: Betaflight OSD
- Camera Voltage: 5V
- Weight: 3.4g
- Mounting: 20x20mm
- Flytower Size: 32x36x20mm
TE30A ESC (Electronic Speed Controller)
- Input Voltage: 2-4S LiPo
- Continuous Current: 30A
- Burst Current: 35A (5 Seconds)
- Current Ratio: 160
- Firmware: BLHeli_S DSHOT 600
- Weight: 6.8g
- Mounting: 20x20mm
Package Contents
Verify that all items are present in the package:
- 1x LDARC TF411 Flight Controller
- 1x LDARC TE30A ESC
- 1x Set of Connection Cables
- 1x Capacitor
- 1x Set of Mounting Hardware (screws, standoffs)
Setup
The LDARC T20 Tower Stack requires careful installation and configuration. It is recommended to consult detailed wiring diagrams and Betaflight setup guides available online for your specific drone frame and peripheral components (receiver, VTX, camera, GPS, etc.).
- Mounting: Securely mount the flight controller stack to your drone frame using the provided 20x20mm mounting hardware. Ensure proper isolation from vibrations.
- Wiring: Connect the flight controller to the ESC using the supplied ribbon cable. Connect motors to the ESC pads (M1-M4). Connect your receiver, VTX, camera, and other peripherals to the appropriate pads on the flight controller. Pay close attention to polarity (+/-) and signal connections.
- Power Connection: Solder the main battery lead to the ESC's battery pads. Ensure the capacitor is soldered to the main battery pads for voltage spike suppression.
- Firmware Flashing (Optional): If necessary, flash the latest Betaflight firmware (LDARC_F411 target) using the Betaflight Configurator.
- Configuration: Connect the flight controller to your computer via USB. Use the Betaflight Configurator to set up your receiver, modes, OSD, motor protocols (DSHOT600 recommended), and other flight parameters.
- ESC Configuration: Use the BLHeli_S configurator (often accessible through Betaflight passthrough) to configure ESC settings if needed.
Always double-check all connections before applying power to prevent damage.
Operating
Once the setup and configuration are complete, you can proceed with operating your drone.
- Pre-Flight Check: Before each flight, ensure all components are securely attached, propellers are correctly installed, and battery is fully charged.
- Arming: Arm the drone using the configured switch on your radio transmitter. Ensure you are in a safe, open area away from people and obstacles.
- Flight: Operate the drone according to your skill level. The Betaflight OSD will provide real-time flight data.
- Disarming: Disarm the drone after landing to prevent accidental motor spin-up.
Maintenance
Regular maintenance helps ensure the longevity and reliability of your flight controller stack.
- Visual Inspection: Periodically inspect the boards for any signs of physical damage, loose connections, or burnt components.
- Cleaning: Gently clean the boards with isopropyl alcohol and a soft brush if dust or debris accumulates. Ensure no moisture remains before powering on.
- Firmware Updates: Keep the Betaflight and BLHeli_S firmware updated to benefit from performance improvements and bug fixes.
- Connection Checks: Verify that all soldered joints are strong and all connectors are seated properly.
Troubleshooting
This section provides general guidance for common issues. For specific problems, refer to online communities and resources for Betaflight and BLHeli_S.
- No Power: Check battery connection, main power lead soldering, and ensure no short circuits.
- Motors Not Spinning: Verify motor connections, ESC calibration, DSHOT protocol settings in Betaflight, and ensure the drone is armed. Check for bent motor shafts or damaged propellers.
- No Receiver Input: Check receiver wiring (signal, ground, power), ensure receiver is bound to the transmitter, and verify receiver protocol settings in Betaflight.
- Unstable Flight: Review PID tuning, check for vibrations, ensure propellers are balanced and undamaged, and verify correct motor direction.
- OSD Not Displaying: Check OSD settings in Betaflight, ensure camera and VTX are correctly connected and powered.
Safety Information
Always prioritize safety when working with electronic components and flying drones.
- Battery Safety: Use appropriate LiPo batteries. Never overcharge or over-discharge. Store in a fire-safe location.
- Propeller Safety: Always remove propellers when performing maintenance or configuration to prevent accidental injury.
- Soldering: Use proper soldering techniques and safety equipment (e.g., ventilation, eye protection).
- Flight Environment: Fly in open areas, away from people, animals, and property. Adhere to local regulations and laws regarding drone operation.
- Water and Moisture: Keep the flight controller and ESC away from water and moisture to prevent short circuits and damage.
Warranty and Support
Specific warranty details for the LDARC T20 Flight Controller Tower Stack are typically provided at the point of purchase or on the manufacturer's official website. For technical support, firmware updates, or further assistance, please refer to the official LDARC resources or relevant online FPV communities.
Please retain your proof of purchase for any warranty claims.
