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System Wiring Basics

System Wiring Basics​

This section explains the minimum and recommended wiring required to safely power, configure, and operate JTA-01. Correct wiring is essential for reliable startup, accurate sensing, and safe control.

Minimum Wiring to Boot​

To power JTA-01 and establish communication with a ground control station, only the following connections are required:

  • Primary power input (via power module or regulated BEC)
  • USB connection to a computer (for configuration and firmware interaction)

⚠️ Important

Motors and ESCs must remain disconnected during initial setup and configuration.

This minimal wiring allows:

  • Board power-up verification
  • Firmware detection
  • Initial configuration and calibration

Power Module / BEC Wiring​

JTA-01 is designed to be powered using a Pixhawk-compatible power module or a regulated DC power source.

Power Wiring Guidelines​

  • Use a regulated supply within Pixhawk FMU v6x RT voltage specifications
  • Connect power only through designated power input ports
  • Ensure correct polarity before applying power

Best Practices​

  • Prefer power modules with voltage and current sensing
  • Do not power motors or servos directly from JTA-01
  • Use a dedicated power distribution board for high-current loads

Power integrity directly affects flight stability and sensor accuracy.

GPS and Compass Wiring​

A compatible GPS module is required for navigation and position-hold modes.

Wiring Notes​

  • Connect the GPS module to the dedicated GPS port
  • Ensure secure cable routing with strain relief
  • Keep GPS cables away from ESCs, motors, and power wiring

If the GPS module includes an external compass:

  • Ensure the compass orientation is correct
  • Perform compass calibration during setup

Telemetry Radio Wiring​

Telemetry radios enable real-time communication between JTA-01 and the ground station.

Typical Use​

  • Connect the telemetry radio to one of the UART telemetry ports
  • Configure baud rate and protocol via firmware

Best Practices​

  • Use shielded or twisted cables where possible
  • Mount telemetry antennas away from high-current wiring
  • Secure the connector to prevent vibration-related disconnections

RC Receiver Wiring​

JTA-01 supports standard Pixhawk-compatible RC input methods.

RC Wiring Guidelines​

  • Use only supported RC receivers
  • Connect the receiver to the designated RC input port
  • Verify signal type and voltage compatibility

After wiring:

  • Perform RC calibration
  • Verify channel mapping and failsafe behavior

CAN Peripheral Wiring (DroneCAN)​

JTA-01 supports CAN-based peripherals using DroneCAN.

Typical CAN Devices​

  • CAN ESCs
  • CAN GPS modules
  • CAN power modules

Wiring Rules​

  • Use twisted-pair cabling
  • Maintain proper bus termination
  • Avoid star or branched topologies

CAN provides robust communication suitable for electrically noisy environments.

Motor and ESC Wiring (Overview)​

Motor and ESC connections should be made only after completing configuration and calibration.

General Guidelines​

  • Connect ESC signal wires to the designated motor output ports
  • Provide ESC power from a power distribution system, not from JTA-01
  • Verify motor order and rotation direction before flight

Always test motor outputs without propellers installed.

Cable Routing and Strain Relief​

Proper cable management improves reliability and safety.

Recommendations​

  • Secure cables using ties or clips
  • Leave service loops to prevent connector stress
  • Avoid sharp bends and tight routing

Poor cable routing can lead to intermittent faults and in-flight failures.

Wiring Verification Checklist​

Before proceeding to power-up:

  • All connectors are fully seated
  • Power polarity is correct
  • Motors and propellers are disconnected
  • Cables are secured and strain-relieved
  • No wires are routed near rotating parts

Once verified, JTA-01 is ready for initial power-up and configuration.