As a continuance of the F411 chip, the V5 FC board is upgraded from the F4 20A V3 FC board. F411 4S 20A Toothpick Brushless Flight Controller V5 adopts BMI270 gyro instead of MPU6000 on V3 board. With two integrated plug & play ports for receiver and HD digital VTX, it is easy to install and requires less solder work. Besides, the board is a solid value for durable use thanks to the high-quality PCB material and enhanced production process. Check out all our whoop flight controllers, and all our BetaFPV gear! Features With a large pad to solder, it is easy to solder external electronics. In addition, the V5 board features plug&play ports for the receiver and HD digital VTX, which requires less solder work for convenient installation. High-quality MOSFETs are applied to F411 4S 20A FC V5 to handle 20A continuous current and reach 25A peak current. The motor solder pads are reinforced by thick copper and edge plating technology, allowing lower resistance for more current on motors. F411 4S 20A FC V5 reserves the UART ports layout, UART1 for RX, UART2 for DJI OSD or Analog VTX, and UART6 for spare usage, more convenient for pilots to solder. Come with a 25.5x25.5mm whoop mounting pattern, this board can be added to both the toothpick drone and the cinematic whoop quadcopter frame like Pavo25 and X-knight 35 The board integrates 3 LEDs, including the Power LED (Red), FC LED(Blue) and Receiver LED. Connecting External RX/HD Digital VTXF411 4S 20A FC V5 integrates the Plug & Play port for the external RX and HD digital VTX, and there will be a 4-pin connector for RX and a 6-pin connector for HD digital VTX in the package. Thus, we highly recommend pilots use the port to save the solder work. .   FC & ESC FirmwareThe default firmware is including CLI dump file. But if you flash firmware from the Betaflight configurator official site, please flash a CLI dump file for F411 4S 20A FC V5. We offer the default firmware and CLI dump file to download. Download the FC default firmware betaflight_4.3.x_BETAFPVF411 and CLI dump file. BMI270 gyro will need more software filters and is sensitive in high frequency. This can be solved by adjusting filter settings in PID tuning. The Betaflight official or BETAFPV default FC firmware and CLI dump file do not include the filter settings. For pilots who want to configure it, we recommend setting gyro lowpass 2 at 145Hz and choosing filter type at PT2. F411 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware and it comes with default BLHeliI_S firmware. The main difference is that the BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not support it. Here are the download links for two firmware.When using BLHeli_S ESC firmware, please configure the settings on BLHeli - Configurator software. Download the BLHeli_S ESC firmware Download the BLHeliSuite16714902a Download the BLHeli - Configurator Download the ESC - Configurator We offer the BLUEJAY ESC firmware for pilots. When using BLUEJAY ESC firmware, please configure the ESC on ESC-Configurator software. Download the BLUEJAY ESC firmware Download the ESC - Configurator Download the Bluejay Configurator Recommend Parts Motors: 1404 Brushless Motors, 1506 Brushless Motors Battery: 2S 600mAh, 3S/4S 850mAh, 4S 750mAh, or 4S 1000mAh Frame: Pavo25 Frame, X-knight 35, or other frames with whoop mounting pattern Specifications Flight Controller: CPU: STM32F411CEU6 (100MHZ) Six-Axis: BMI270 (SPI connection) Mounting Size: 25.5x25.5mm (M2 Anti-vibration rubber damper available) FC Firmware: betaflight_4.3.x_BETAFPVF411 OSD: Built-in Betaflight OSD (OSD chip: AT7456E) Receiver: SBUS/CRSF/DSMX Receiver BEC: 5V 3A Built-in current sensor Weight: 8.15g ESC: ESC Chip: SILABS EFM8BB21F16G-C Support D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM Input voltage: 2S-4S Lipo Continuous current: 20A Peak current: 25A Firmware: G_H_20_REV16_7.HEX (Default BLHeli_S), BLUEJAY (Optional) Note: F411 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware and it comes with default BLHeliI_S firmware. The main difference is that the BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not support it. Includes 1x BetaFPV F411 2-4S 20A Whoop/Toothpick Flight Controller V5 8bit 4in1 ESC BLHeli_S - BMI270 1x Cable Pigtail (XT30) 1x 6-Pin Connector for Digital VTX 1x 4-Pin Connector for RX 4x M2x12 Screws 8x M2 Nuts 4x M2 Anti-vibration rubber dampers Diagram