Discover how to make a small Bluetooth-controlled car using Arduino with this step-by-step guide. This compact robot car ...

Inside the radio there is an Arduino Mega controlling ... We’ve had very few car radios from scratch here at Hackaday, but we have had more than one bluetooth upgrade or addition of a line ...

An ELM327 Bluetooth OBD-II reader is hooked up to the car, collecting data on speed and RPM. This data is passed to an ESP-32 and Teensy 3.5. From reading the code, it appears the Teensy is ...