This tool allows you to open logs recorded by Cleanflight's Blackbox feature in your web browser. You can seek through the log to examine graphed values at each timestep. If you have a flight video, you can load that in as well and it'll be played behind the log.
First, download the contents of this repository by clicking the "download ZIP" button on the right of this page. Unpack the zip somewhere on your computer, and double click "index.html" file to open it with your web browser. Click the "Open log file/video" button at the top right and select your logged ".TXT" file and your flight video (if you recorded one).
You can scroll through the log by clicking or dragging on the seek bar that appears underneath the main graph. The current time is represented by the vertical red bar in the center of the graph. You can also click and drag left and right on the graph area to scrub backwards and forwards.
The blackbox plays a short beep on the buzzer when arming, and this corresponds with the start of the logged data. You can sync your log against your flight video by pressing the "start log here" button when you hear the beep in the video. You can tune the alignment of the log manually by pressing the nudge left and nudge right buttons in the log sync section, or by editing the value in the "log sync" box. Positive values move the log toward the end of the video, negative values move it towards the beginning.
Click the "Graph Setup" button on the right side of the display in order to choose which fields should be plotted on the graph. You may, for example, want to remove the default gyro plot and add separate gyro plots for each rotation axis. Or you may want to plot vbat against throttle to examine your battery's performance.
This tool has not been tested on Internet Explorer, but definitely won't work on versions earlier than version 9.
Your web browser must support the video codec that your flight video uses in order to play it. Firefox doesn't support H.264 videos on Mac, so if your video won't play, try Google Chrome instead.
The best performing web browser tends to be Google Chrome, especially when trying to play your flight video at the same time.
This tool is currently in the Alpha stage, so a number of key features have yet to be implemented:
- There is no control over the amount of smoothing applied to the graph lines
- There is no way to single-step between loop iterations with the arrow keys
This project is licensed under GPLv3.