Features: Engineered with STM32F411CEU6 and MPU6500, the F4DC Flight Controller delivers responsive stabilization for FPV racing drones. Featuring pre configured Betaflight 4.2.0 firmware for immediate deployment without complex setup. This lightweight 8g flight controller supports Stabilize/Height hold/Position hold modes, integrates BMP280 for and works seamlessly precisely with 615 8520 brushed motors across 1S 2S battery configurations. Ideal for FPV racing enthusiasts, STEAM educators, and drones builders requiring professional stability in compact 100mm frame quadcopters for competitive event or technical workshops. The module design combines F411 firmware compatibility with clear UART2 receiver integration, making it a versatile upgrade for Betaflight controlled remote control drones focused on flight controller and brush motor synchronization. Specifications: : STM32F411CEU6 : MPU6500 Barrometer: BMP280 : AT7456E Firmware: F411 Brush motor bracket: 615 716 816 820 8520 Battery input voltages: 1S - 2S (3.0V-8.4V) Module Length about 5.8cm/2.28in Package Includes: 1 Set of F4DC flight controller note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.