Saw your cross-post link on the Hackster discussion. https://www.hackster.io/contests/quickfeather/discussion/posts/7979#comment-152874 The QuickFeather outputs it's serial data at 460800. You can change it in firmware, but the native Data Capture Lab plugin also expects the device to be running at ...

If you happen to have a TTL to USB cable/adapter to connect the EOS-S3 uart (not the micro-usb port), You can use an application like TeraTerm or PuTTY to view the text output. It will be a JSON string along the lines of: {"ModelNumber":0,"Classification":0,"FeatureLength&qu...