Fix My VTOL Pre-Arm Error

$2-8 USD / hour

In Progress

Posted 18 days ago

$2-8 USD / hour

My VTOL build is stuck on the ground: Ardupilot refuses to arm with the message “Pre-arm check failed: waiting for RC.” Power, wiring, and continuity have all been triple-checked, so the problem looks to be in the YAML parameter set or a related Ardupilot setting rather than hardware. I can share the full .param dump, current YAML, and a short log collected through Mission Planner. I need you to: • review the existing YAML/param file for obvious conflicts or missing fields that would block arming • guide me through any radio calibration or RC-map corrections necessary to satisfy the safety checks • suggest and, if needed, test-fly (in SITL) revised parameters so the aircraft arms cleanly and lifts off under STABILIZE and QLOITER Success for me is simple: the pre-arm warning disappears and the drone arms and takes off reliably in bench tests or in a simulator, with clear documentation of what you changed and why. If you prefer using tools like mavproxy, SITL, or QGroundControl instead of Mission Planner, that works for me as long as the end result is a tidy YAML or .param file I can flash straight onto the Cube. One of the drones was flying last year but the hover test didn't go well and it set me back from october until now.

Aerospace Engineering

Embedded Systems

Robotics

Data Analysis

Technical Documentation

Simulation

Software Development

Debugging

Electrical Engineering

Project ID: 40407980

About the project

3 proposals

Remote project

Active 18 days ago

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Awarded to:

@fd3os

"Hello, I am a robotics engineer with extensive experience in flight controller tuning and Ardupilot system architecture, specifically with VTOL configurations. I can help you resolve your 'waiting for RC' pre-arm failure by performing a deep audit of your YAML and .param files to identify any configuration conflicts or missing RC mapping fields. I am well-versed in using SITL for simulation testing and MAVProxy for real-time telemetry debugging, ensuring that the revised parameters are fully validated before you flash them to your Cube. I will guide you through the necessary radio calibration and safety check adjustments to ensure a clean, reliable arming sequence and stable takeoff in STABILIZE and QLOITER modes. I understand the importance of clear documentation and will provide a detailed breakdown of all changes to help you avoid future setbacks. I am ready to review your parameter dump and logs immediately to get your VTOL back in the air

$5 USD in 10 days

5.0

(2 reviews)

3.0

3 freelancers are bidding on average $5 USD/hour for this job

@Softeria

⭐⭐⭐⭐⭐ Proposal for Fix My VTOL Pre-Arm Error With a deep understanding of UAV systems and extensive experience using Ardupilot, I am fully equipped to troubleshoot and resolve the pre-arm error your VTOL is experiencing. My background includes configuring and calibrating numerous UAVs, with a strong focus on parameter optimization and error resolution in YAML and .param files. I am proficient in using Mission Planner, mavproxy, SITL, and QGroundControl, ensuring flexibility in approach and tools. I will meticulously review and adjust your VTOLs settings, guiding you through necessary calibrations and testing the revised parameters in simulation to achieve a successful takeoff. Lets get your VTOL airborne with clear documentation of all modifications for future reference.

$6 USD in 30 days

4.9

(32 reviews)

5.8

@toqeer74

The “Pre-arm check failed: waiting for RC” message suggests a possible misconfiguration in the YAML parameters or an issue with the RC calibration. Analyzing your current YAML and .param file will be crucial in identifying conflicts or missing values that could affect arming. With the log data through Mission Planner, I can pinpoint any discrepancies in the RC mapping and guide you through the necessary adjustments to meet safety checks. I will propose revised parameters and validate them in SITL to ensure a successful arming and takeoff under both STABILIZE and QLOITER modes. Expect the initial deliverable within 5 days, complete with comprehensive documentation of the modifications made. What does success look like for you at the end of this project?

$3 USD in 40 days