iFlight BLITZ F7 Stack (E55 4-IN-1 ESC)

The iFlight BLITZ F7 V1.2 Stack is an advanced flight control system combined with a high-performance 4-in-1 ESC, designed for medium to large FPV drones (7–10 inches). Featuring a powerful STM32F722 processor and the latest ICM42688 gyroscope, this stack provides high-speed signal processing, precise control, and stability. The ESC supports currents up to 55A, making it an excellent choice for FPV pilots seeking reliability and efficiency.

When using this ESC with 7–10 inch drones, it is recommended to install an additional external capacitor to reduce the load on the board's built-in capacitor, improving power system stability.

Features

Improved circuitry design and high-quality components to lower electrical interference

Built-in DJI HD VTX connector for Plug & Play connection without soldering

FC LED indicators for easy diagnostics

Built-in LC filter to reduce power supply noise

BLITZ F7 V1.2 Flight Controller Specifications

Processor (MCU): STM32 F722

Gyroscope: ICM42688

Barometer: DPS310

OSD: AT7456E

Blackbox Memory: 32 MB

UART Ports: 6

Motor Outputs: 4x (SH1.0 connector)

I2C Serial Port: SDA / SLA

VTX Protocols Supported: Smartaudio / IRC Tramp

Built-in LED Controller: Yes

Buzzer Output: Yes

BEC: 5V 2.5A / 9V 2A

Dimensions: 36.5 x 35 mm

Mounting Pattern: 30.5 x 30.5 mm (Ø4 mm)

Weight: 7.8 g

Connection Recommendations

UART 1: For VTX (HD or Analog)

UART 2: For receiver

UART 3/4/5: For GPS or other sensors

UART 6: For ESC telemetry

BLITZ E55 4-IN-1 ESC Specifications

Mounting Pattern: 30.5 x 30.5 mm (Ø4 mm)

Weight: 15.3 g

Input Voltage: 2-6S LiPo

Processor (MCU): G071

Continuous Current: 55A

Peak Current: 65A

Current Sensor: Yes

BEC: No

Update Frequency: DShot150/300/600, Multishot, Oneshot

Firmware: BLHeli_32 (Target: IFLIGHT_BLITZ_G3 32.9)

Recommended External Capacitor: Needed for 7–10” drones

Package Contents

1 x BLITZ F7 V1.2 Flight Controller

1 x BLITZ E55 4-IN-1 2-6S ESC

1 x Silicone grommets set

1 x Connection cable set

This stack delivers the power, stability, and control precision required for medium and large-sized FPV platforms.