The Bluetooth module wants 3.3v logic levels so that is ... The software end of things consists of an Arduino sketch and an Android app. Check out all the controls on that screen.

Arduino boards get a Bluetooth Smart dev kit from Nordic Semiconductor. The SDK is compatible with a range of Arduino, ChipKIT shields that employ the nRF8001 Bluetooth Smart connectivity device.

In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT relay to switch the I2C bus. An external button is used to trigger the Arduino to switch to ...

U-blox has announced a module combining Bluetooth Low Energy 5.2 and dual Arm Cortex-M33 cores – M33 is Arm’s security-enabled small embedded core. Called Nora-B1, at 10.4 x 14.3 x 1.8mm the modules ...