Android 6.0 slipped in some easy to overlook changes concerning Bluetooth Low Energy. If Location Services are disabled on your Android devices, applications like Bluefruit LE Connect won’t be able to scan for nearby Bluetooth Low Energy devices. The changes are security related, and are intended to prevent people from tracking individuals via Bluetooth Low Energy MAC addresses.
If you don’t see your Bluefruit LE devices after upgrading to Android 6.0, this is the most likely explanation.
To scan for devices, enable Location Services on your device and restart the Bluefruit LE Connect application. Location Services can’t be enabled at the app level for security reasons, so you’ll need to do this yourself, but in the latest version of Bluefruit LE Connect (1.1.4+) we do detect if they are enabled at startup and display a helpful reminder asking you to enabled them.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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