CBU-CM405-FC (EOL)

End Of Life

Purchase on the Store

The CM405-FC is designed to simplify and minimize the physical size of UAV control systems. By incorporating common accessories onto a single circuit board system-to-system wiring is dramatically reduced, minimising weight and failure points. With tight integration for a Raspberry Pi Compute Module 4, high demand onboard processing comes in a tiny form factor!

Dimensions: 55x40x16mm (48x33mm M2.5 Mounting)

Weight: (Stack Total = 29g)

CM405-FC = 16g

CM405-FC-BO =2g

CM4 = 11g

General Overview

The flight controller can be generally split into 2 halves:

1) The STM32F405 runs ArduPilot or Px4 and calculates all the algorithms needed for stable flight. (Shown Yellow in the Architectural Map)

2) The Raspberry Pi Compute Module 4 acts as a companion computer connected to the STM32 over UART and allows more advanced I/O and flight manipulation. (Shown Blue in the Architectural Map)

Architectural Map

I/O and Sensors

STM32

• 2x IMU (1x ICM20602, 1x BMI270)

• 1x Barometer (BMP280)

• 5x UART Serial (1x Externally Jumped to the CM4, 1x For SBus or Serial RC)

• 1x I2C

• 6x PWM (1-6 through mezzanine, 5-6 through Female Header)

• Micro SD For Logging

Raspberry Pi Compute Module 4

• 2x CSI Camera (Pi Zero Connector)

• 4x USB 2.0 Host (Male Header)

• Micro SD Card for without EMMC

• 1x UART Serial (Externally Jumped to the STM32)

• Full 40 Pin GPIO (Broken out to solder pads, ONLY compatible with CM405-FC-BO)

ESC Mezzanine

CM405-FC-BO

All new purchases will come with a CM405-FC-BO, which simply connects onto the top of the flight controller and breaks out into an 8 pin sh1.0 connector for power, current and PWM 1-4. The breakout also features an integrated Voltage sensor.

CM405-FC-ESC

CM405-ESC-4s4c

A range of compatible BL-Heli ESCs are available with varying applications.

• CM405-ESC-4s4c. 4 channel, 2-4s 20 Amp ESC (Quadcopters)

• CM405-ESC-4s2c. 2 channel, 2-4s 20 Amp ESC with 4 servo channels and dedicated servo BEC (Fixed wing)