COBI.Bike/SmartphoneHub doesn't support ANT+ (yet?), so to show realtime measurements:

• To prevent ERR_CLEARTEXT_NOT_PERMITTED:
  • apktool_cobi-bike.bat for bike.cobi.app
  • AndroidManifest.xml: <application […] android:networkSecurityConfig="@xml/network_security_config">
• ANT+ Plugin Sampler with HTTP server
• Module-Grid with XHR (source)

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Sven Killig 2019