Check out the very first beta release of the Adafruit Bluefruit LE desktop application. This is an application that lets you interact with Bluefruit LE and other Bluetooth low energy devices right from your Mac OSX, Windows, and Linux desktop. Just like the iOS and Android app you can do things like:
View BLE device information like services, characteristics, and read characteristic values. Great for checking the firmware version of a device using its device information service.
Send and receive data with a BLE UART, like controlling an Arduino project over BLE.
Send control pad and color picker values to a BLE device over its UART connection.
Visualize a BNO-055 absolute orientation sensor using a 3D model.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.