If the car and phone are paired via Bluetooth, the doors unlock. Walk out of range and the car automatically locks when the connection drops. His build uses an Arduino Mega with a BlueSMiRF ...

In fact, its latest iteration, the Pi 5, is packed with a 2.4 GHz 64-bit processor, VideoCore VII GPU, dual 4Kp60 HDMI port, ...

For this example [Oscar] is using an Arduino with a Bluetooth module as a test device. His sketch first shows what devices are available, then connects to the one you select from the list.

Makers, developers and hobbyists that are looking for a low-cost Bluetooth Arduino compatible micro controller ... You won’t have to limit which parts you can use because of incompatible ...