Arduino Bluetooth Controller by Ioannis Tzanellis Once you’ve graduated from the debugging stage to driving a remote-controlled car, tank, or robot, choose a controller with onscreen buttons. One such ...

[Labpacks] wanted to build a robot car controlled by his phone ... build a phone interface that will talk to your hardware over Bluetooth LE, USB, or Ethernet (including WiFi).

Flashy, modern head units can spoil the look of a car’s interior ... In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT relay to switch ...