Ltu-rocket Firmware -

Mission Planner is the gold standard for flashing SiK-based radios.

Unlike basic PID libraries, the LTU-Rocket firmware implements gain scheduling based on propellant tank ullage pressure. During startup, Kp is intentionally low to prevent hammering; at nominal thrust, Ki increases to maintain steady-state accuracy within ±1.5%. ltu-rocket firmware

Once the ltu-rocket firmware is successfully installed, you must configure the parameters. Connect via Mission Planner’s SiK Radio screen and set the following: Mission Planner is the gold standard for flashing

| Parameter | Professional Setting | Explanation | | :--- | :--- | :--- | | Air Speed | 64 kbps | Balances range and bandwidth. 32kbps for extreme range (<10Hz updates). | | Tx Power | 20 dBm (100mW) for ground; 30 dBm (1W) for air | Saves ground battery; complies with EIRP limits. | | ECC | Enabled | Forward Error Correction adds 10% to range at 5% bandwidth cost. | | Op Resend | Enabled | Ensures critical MAVLink messages (RTL commands) are repeated. | | Max Window | 33 | Allows more data bursts for high-speed quads. | Control surface commands (servo PWM at 333 Hz)

During boost, aerodynamic forces are extreme. Our firmware runs a PID controller with gain scheduling:

Control surface commands (servo PWM at 333 Hz) are mixed with the gyro rates and the desired attitude computed from the onboard reference trajectory.