Product Overview
The S3-A avionics system features comprehensive upgrades in software-hardware design and performance. It adopts a customized version of the open-source APM firmware to deliver richer software functions. Also, it is equipped with the high-performance STM32H7 series main control chip as its core, delivering powerful computing support for unmanned device control. Its built-in IMU uses the BMI088 sensor with well-tuned shock-absorbing optimization design, enabling stable and efficient attitude data acquisition even in complex environments, which greatly improves the accuracy and reliability of the S3-A. In addition, screw-mounting holes are specially added to the avionics system housing. This not only simplifies the installation process but also guarantees assembly stability, building a solid safeguard for the safe operation of unmanned devices.
Visual Specification Notes
The following product details were transcribed from the technical graphics supplied with this model.
- The S3-A is equipped with the high-performance BMI088 inertial measurement unit, which provides low-noise and low-drift characteristics in environments with temperature fluctuations, together with excellent ruggedness and stability.
- The S3-A offers abundant interfaces, including SBUS input and output ports, a GPS and compass serial port, a data transmission port, a CAN port, PWM output, a serial port and a TYPE-C port.
- The S3-A adopts open-source ArduPilot firmware, and users can conduct parameter tuning via the open-source Mission Planner and QGroundControl software, with all parameter configurations displayed intuitively.
- The S3-A can be equipped with the optional high-precision GPS-A module, which features precise positioning and a compact size, allowing for easy installation on various devices.
- The Skydroid GRO1 receiver features a compact body and a rich array of interfaces, is compatible with various unmanned devices and is the ideal partner for the S3-A.
- The GRO1 receiver exposes a wide-voltage 7.2V to 80V source input port, along with PWM output, SBUS output, a data transmission interface with network port, an upgrade interface, a frequency pairing button and an indicator lamp.
Key Parameters
Values read from the manufacturer parameter table for this model.
| Parameter | Specification |
|---|---|
| Main Processor | STM32H743 |
| IMU & Gyroscope | BMI088 |
| Barometer | MS5611 |
| PWM Output | 12 |
| SBUS Output | 1 |
| Serial Port | 1 |
| Compatible Models | 3~12 axis multi-rotor, helicopter, fixed-wing aircraft, UGV, USV, etc. |
| Input Power Voltage | 2S~18S |
| USB Supply Voltage | 5V±0.3V |
| Operating Temperature | -20°C~65°C |
| Dimension | 56.9 x 16.7 x 68.6mm |
| Weight | 60g |
100drone Selection & Integration Notes
Match the firmware version, sensor orientation, GNSS/RTK configuration and interface pinout to the aircraft architecture. Perform a restrained bench test and review failsafe behavior before flight.
100drone Integration Support
100drone supports industrial UAV platform integration, payload matching, data-link configuration and deployment planning. Our team includes former DJI R&D engineers and can provide practical compatibility guidance for DJI ecosystems and custom ground-control APP workflows.