Product overview
The iFlight BLITZ F745 Stack (E55 4-IN-1 ESC) combines a flight controller and a four-in-one ESC for drone flight control and motor control. The controller uses an STM32F745 MCU, ICM42688 gyro, DPS310 barometer and AT7456E OSD chip, with 32MB of Blackbox flash and six UARTs. Betaflight and Ardupilot firmware are supported, while flight-controller indicator LEDs provide visual debugging. The flight controller measures 36.5*35 mm, weighs 7.8g and uses a 30.5*30.5mm mounting pattern.
A plug-and-play DJI HD VTX connector requires no soldering for that connection, and Smartaudio / IRC Tramp VTX control is supported. An LED controller and beeper pad are provided. The 5V and 9V BEC outputs each deliver 2.5A continuously, with 3A peak current for 15 seconds. The E55 ESC natively supports Bidirectional DShot. When installed on a 7-10 inch drone, the ESC requires an additional capacitor to prevent overloading its onboard capacitor.

