SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 — Complete Control and Power up to 8S

The SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 combines the SEQURE H743 V2 flight controller with the SEQURE E70 G2 4-in-1 ESC for FPV drones powered by 4-8S LiPo or LiHV packs. The flight controller runs an STM32H743 processor at up to 480MHz with an ICM-42688-P gyro, a barometer, an AT7456E OSD chip and 16MB of blackbox memory. It has six UARTs, two BECs (5V/2.5A and 10V/2A) and plug-in connectors for a DJI O3, O4 or O4 Pro air unit or an analog video transmitter, and runs Betaflight (preinstalled), INAV and ArduPilot. The ESC uses an STM32G071 processor with AM32 firmware and delivers 70A of continuous and up to 150A of peak current per channel. A built-in current sensor sends speed, temperature and current telemetry to the flight controller. Both boards share the 30.5x30.5mm mounting pattern and connect with a single 8-pin SH1.0 cable, and the kit includes an XT60H connector, power leads and a 680µF capacitor.

SEQURE H743 V2 Flight Controller

Fast Control Response

The STM32H743 processor runs at up to 480MHz. SEQURE points to it as the source of the rapid control response of this flight controller.

Sensors and Flight Data

The ICM-42688-P gyro senses the attitude of the drone precisely, and the barometer measures altitude. A 16MB blackbox records flight data for later analysis, and the AT7456E chip shows flight information on the analog OSD.

Eight Motors and Plug-In Video

Outputs M1-M4 go to the E70 G2 through the ESC connector, and M5-M8 sit on separate pads for a second ESC in an X8 build. A dedicated 10V BEC powers a DJI O3, O4 or O4 Pro air unit or an analog VTX plugged straight in.

SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 Key Features

SEQURE E70 G2 70A 4-in-1 ESC

STM32G071 Processor

The STM32G071 processor runs the AM32 firmware. The ESC accepts DShot600/300/150, Oneshot, Multishot and PWM signals from the flight controller.

Real-Time Telemetry

A built-in current sensor lets the ESC report motor speed, temperature and current in real time. You can watch these values in the OSD and catch an overloaded motor before it fails.

High-Power MOSFETs

According to SEQURE, high-power MOSFETs reduce conversion losses and extend flight time. A multi-layer PCB with thick copper raises the over-current capability and helps dissipate heat.

PWM Frequency from 16 to 128kHz

The PWM frequency can be set anywhere from 16kHz to 128kHz. SEQURE states that the circuit design counters ESC desync, the loss of synchronisation between the ESC and the motor.

Beveled Motor Pads

The motor pads have a beveled surface. They make soldering easier and help you route the motor wires neatly and safely.

SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 Suitable Applications

SEQURE designed this stack for many types of FPV frames.

• Racing drones
• Aerial photography and filming
• Freestyle

SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 Dimensions

SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 Wiring Diagram

The manufacturer's diagrams show how to connect an LED strip, an analog camera, a second ESC, a buzzer, GPS modules and video systems to the solder pads of the flight controller, and the ESC, a receiver, a video transmitter and DJI or Vista/Link air units to its SH1.0 connectors. If you do not use the DJI FPV remote controller, do not connect the SBUS wire to the flight controller.

SEQURE H743 V2 Solder Pads

SEQURE H743 V2 SH1.0 Connectors

SEQURE E70 G2 ESC

The ESC diagrams show the four motors, the 8-pin connector to the flight controller (VBAT, GND, CR, TX, M1-M4) and the battery lead with the 35V 680µF capacitor.

SEQURE H743 V2 & E70 G2 Stack FC ICM42688P 70A 4IN1 ESC 4-8S AM32 Specification

SEQURE H743 V2

SEQURE E70 G2