The Control Zero series of flight controllers from mRo is our commitment to continuous improvement. Our goal with this series was to take every lesson learned from our 10+ years of flight controller design and make the best pro-consumer / commercial flight controller on the market. Our journey begins with this Zero; this is a no-compromises triple IMU commercial-grade flight controller.

Design changes:
The latest generation D model includes the following enhancements to the previous versions:

Removed level shifting due to MFG decision to discontinue it on short notice, no replacements available. Replaced with robust ESD and current limiting protection.
Added additional voltage rail diagnostic LEDs.
Moved SDCARD to expose the Microcontroller for adding heat-dissipating thermal solutions for higher temperature environments.
Simplified overall electrical design with additional test points for factory quality control checks.
The external interface remains unchanged for drop-in replacement with earlier models.

Specifications:

Main Processor: STM32H743 contains the Arm® Cortex®-M7 core (with double-precision floating-point unit). 480 MHz fCPU /2424 CoreMark /1027 DMIPS executing from Flash memory, with 0-wait states thanks to its L1 cache.
RAM: 1024 KB RAM
Flash: 2 MB FRAM
Accelerometers / Gyros / Mags: 3 / 3 / 1
Sensors:
Invensense/TDK ICM-20602 (6DOF)
Invensense/TDK ICM-20948 (9DOF)
Sensors - Dampened: Bosch BMI088 (6DOF) (internally vibration dampened)
Internal Magnetometer: AK09916 inside ICM-20948
Barometric Pressure Sensor: Infineon DPS310 barometer (Very smooth and NO light sensitivity)
Interfaces and Protocols:
5x UART (serial ports) [2x with HW flow control,1x FRSky Telemetry (D or X types), 1x Console & 1x GPS+I2C].
1x PPM sum input signal
8x PWM outputs (all DShot capable)
1x RSSI (PWM or voltage) input
3x I2C
1x SPI
2x CAN
1x JTAG (TC2030 Connector)
3x Ultra-low noise LDO voltage regulator
1x micro SD card slot

Supported RC Input Protocols:
Spektrum DSM / DSM2 / DSM-X® Satellite compatible input and binding.
Futaba S.BUS® & S.BUS2® compatible input.
FRSky Telemetry port output.
Graupner SUMD.
Yuneec ST24.

Bottom Connectors:
Front - Samtec FTM-118-02-L-DV
Rear: Samtec FTM-120-02-L-DV

Features:
IO Processor: Not needed. Higher density MCU allows for extra IO pins, removing an extra point of failure.
Crypto / Hash Processor: No. Please contact us if needed.
Pin Headers: Yes
Conformal Coating: Optional
Custom Carrier Board Support: Yes
LED: Yes (Tricolor)

Physical:
Width: 20mm (0.79”) / Length: 35mm (1.38”)
Weight: 4.14 g (.15 oz)
Mounting Holes: N/A
Protector Case: N/A

Typical Platforms:
-Multirotor
-Rover
-Fixed-Wing
-Boats
-Submarines
-VTOL
-Automatic Tractors
-Others

Software Compatibility: ArduPilot and PX4

What's Included: Board & Tweezers

The mRo Quad Zero drone is a sub-250g focused on ultralight payloads and extended flight times (1hr). This kit is perfect as a development platform, educational or even a light show drone - light fixture coming soon!

We provide a full build log for Ardupilot and PX4, for beginners and experienced builders alike here. We developed a telemetry radio around this platform to enhance its "developer platform" character, as it provides the hardware to include external sensors and send information over custom MAVLink messages, or on the contrary use those messages to push commands to any actuator without disrupting the flight stack or the autopilot's pinout.