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Mandatory Setup (First Time)

This section covers the mandatory configuration steps that must be completed before JTA-01 can be safely operated. These steps establish correct vehicle geometry, sensor alignment, control input mapping, and power monitoring.

⚠️ Important
Do not connect motors or propellers during any part of the setup described in this section.

Airframe Selection​

Airframe selection informs the firmware about the vehicle type and actuator layout.

Typical airframe categories:

  • Multirotor (quad, hexa, octa, etc.)
  • Fixed-wing
  • VTOL
  • Rover or marine vehicle

Procedure:

  • Connect JTA-01 to the ground control software
  • Navigate to the airframe or vehicle setup section
  • Select the correct frame type and geometry
  • Apply and reboot if prompted

Selecting an incorrect airframe can result in:

  • Incorrect motor mixing
  • Unsafe actuator outputs
  • Inability to arm

Accelerometer and Level Calibration​

Accelerometer calibration defines the reference orientation of JTA-01.

Calibration Requirements:

  • Place the vehicle on a stable, level surface
  • Ensure JTA-01 is firmly mounted
  • Follow on-screen orientation prompts

Typical Steps:

  • Level position
  • Front side
  • Back side
  • Left side
  • Right side
  • Top or bottom (as prompted)

Successful calibration ensures:

  • Accurate attitude estimation
  • Stable hover and level flight

Gyroscope Calibration​

Gyroscope calibration removes bias and drift from rotational sensors.

Procedure:

  • Keep the vehicle completely still
  • Avoid vibration or movement
  • Allow calibration to complete uninterrupted

Gyro calibration typically runs automatically at startup but may also be initiated manually through the ground control software.

Compass Calibration​

Compass calibration is required for correct heading estimation.

Preparation:

  • Perform calibration outdoors or in a low-interference area
  • Keep away from metal structures and power lines
  • Remove magnetic objects near the vehicle

Calibration Notes:

  • Rotate the vehicle slowly as instructed
  • Ensure smooth motion during calibration
  • Recalibrate if the compass is relocated

Incorrect compass calibration can cause:

  • Heading errors
  • Navigation instability
  • Unexpected yaw behaviour

Radio (RC) Calibration​

RC calibration maps transmitter inputs to control channels.

Steps:

  • Power the RC transmitter
  • Start RC calibration in ground control software
  • Move all sticks and switches through full range
  • Confirm channel assignments

After calibration:

  • Verify stick directions
  • Assign flight modes and failsafe switches

Power Calibration (Voltage and Current)​

Power calibration ensures accurate battery monitoring.

When Using a Power Module:

  • Verify voltage reading matches the actual battery voltage
  • Verify current reading (if supported)

Accurate power calibration enables:

  • Battery failsafe functions
  • Reliable flight time estimation

Actuator and Motor Output Test (No Propellers)​

This step verifies correct actuator assignment and direction.

Safety Rules:

  • Propellers must be removed
  • Perform tests with the vehicle secured

Test Objectives:

  • Confirm motor numbering
  • Confirm motor rotation direction
  • Confirm servo travel and direction

If issues are detected:

  • Correct wiring or configuration
  • Repeat the test until outputs behave as expected

Parameter Save and Reboot​

After completing all mandatory setup steps:

  • Save configuration parameters
  • Power-cycle JTA-01
  • Reconnect and verify all settings

A reboot ensures that:

  • All calibrations are applied
  • Firmware initializes correctly with the new configuration

Setup Completion Checklist​

Before proceeding further: ❏ Airframe selected correctly
❏ Accelerometer and gyro calibrated
❏ Compass calibrated
❏ RC calibrated and verified
❏ Power monitoring verified
❏ Actuator outputs verified

Once all items are complete, JTA-01 is ready for navigation setup and pre-flight safety configuration.