Install the App

Download the Adafruit Bluefruit LE Connect app on either an Android or iOS device with Bluetooth.

Attach the Feather Board to the Droid

There are lots of different ways to attach the Feather board:

extra Lego to hold the board in place,
a custom-made 3d printed holder,
two pieces of black insulating tape.

The last option was used with the battery hanging off precariously.

Feather M0 Bluefruit LE board temporarily attached to Micro Scout brick with insulating tape. LED alignment with the photodiode (light sensor) could be better!

The LED must be aligned with the photodiode light sensor. In bright conditions it may help to cover/shroud this area to stop ambient light interfering with the light pulse communication.

The LiPo battery shown in the pictures comes with the correct connector (JST PH) but the wrong polarity. The pins have been swapped around so the polarity matches the Adafruit board. This is best done with non-conductive tools to avoid the risk of shorting the battery. The recommended battery does NOT have this issue.

Droid Remote Control

Ensure the Micro Scout brick is in P mode, tap connect in the tablet for the BlueMicroScout and start sending commands to the droid:

Button -> Action

Up -> Reverse
Down -> Forward
1 -> Beep

It's possible the droid in this example is built incorrectly with the direction mechanically reversed. The intention of the code is for the direction to be the other way around!