What is Blackbox in Cleanflight
CleanFlight can now log your flight data with BlackBox feature. This is a great tool for diagnosing problems of flight controller, motors, power system, or radio transmitter/receiver. It’s also great for tuning PID and other flight performance settings.
Your captured flight data logs can be converted to CSV for analysis using the included software. You can even rendered them out as PNG frames, which you can overlay onto your flight video with your favourite video editing software. There are quite a few people used data recorded with BlackBox to overlay on their FPV video, and the result looks great.
How to use Blackbox
The flight data is transmitted via serial port and it’s recorded on . The current recommended hardware for logging data is the OpenLog serial data logger and a microSDHC card. The OpenLog logger needs to be flashed with Blackbox firmware first.
You can find documentation for setting up the BlackBox on the CleanFlight github docs page here. You can find the github for BlackBox here and the developers (thenickdude) youtube here.
This document outlines in detail how to use Blackbox and the hardware required to start logging your flight data.
This is my detail blackbox setup guide on Naze32.
Convert and Render Flight data from Blackbox
There are various tools you can use to convert and render flight logs into format you want. It’s very well documented, giving you all the instructions you need in the official page.
Cleanflight Blackbox Explorer
This is a really handy tool. Blackbox Explorer allows you to open logs recorded by Cleanflight’s Blackbox feature in your web browser. If you have a flight video you can also play the video in the background and have your data overlayed .It saves you time rendering the video.