Most of us will never get a chance to drive a Ferrari F50 around the Nürburgring in real life, but we can all do so in a racing sim. To get the most out of that experience, many people build serious and elaborate racing sim rigs. What if one could use their racing sim rig to control something in the real world? That’s exactly what YouTuber bitsbits did by linking a racing sim rig to an actual, physical RC car.
Traditional RC cars relied on fairly rudimentary analog signals, but complete digital control is common today. The transmitter simply sends encoded digital data containing whatever information is necessary, such as the steering angle and throttle position. Typically, that is a standard protocol that the receiver can understand and translate into motor movement.
In this case, the transmitter sends data that comes from the racing sim rig instead of joysticks and buttons. The rig connects to a PC that runs a Python script that turns inputs (steering wheel angle, brake pedal position, and so on) into simple values sent to an Arduino board. The Arduino then tells the RC transmitter what to control commands to send to the RC car’s receiver.
An FPV (first-person view) camera on the car, with the video streamed to the rig, completes the experience. It is like miniaturizing oneself and sitting in the driver’s seat of the RC car!
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