First of all, you need to configure your HC-05 module. Sketch is below. Time to setup our HC-05. At step 1 you have flashed arduino with sketch that will set up bluetooth module. Press and hold KEY ...

Downforce is a major part of modern motorsport, keeping cars glued to the track at high speeds. However, for small radio control cars, adding a fan for a little suction can achieve even greater feats, ...