Product overview
The iFlight BLITZ Mini F7 Stack (E55R 4-IN-1 ESC) combines a BLITZ Mini F7 V1.2 flight controller with a BLITZ E55R four-in-one ESC. The flight controller uses an STM32 F722 MCU, ICM42688 gyro, DPS310 barometer and AT7456 OSD chip, with 8MB of Blackbox flash and six UARTs. Its 30.5x27 mm board weighs 5g and uses a 20x20 mm/φ4 mount pattern. A plug-and-play DJI HD VTX connector requires no soldering, while indicator LEDs support visual debugging. Smartaudio and IRC Tramp VTX protocols are supported.
The BLITZ E55R 4-IN-1 ESC (G3) uses a BB21 MCU, larger MOSFETs and a bigger PCB for heat dissipation. It accepts 2-6S LiPo input and provides 55 Amps constant current and 65 Amps burst current. The ESC weighs 15.3g, has 20*20mm/Φ4mm mounting holes and includes a current sensor, with no BEC. The package supplies the flight controller, ESC, silicon grommets and an F7 flight controller wire harness. The stack is intended for fun purposes only and does not support autonomous flight.

