Arduino GPS speed logger

Sketch: http://www.iforce2d.net/sketches/GPS_MaxSpeedDisplay.zip UBX protocol stuff: https://www.youtube.com/watch?v=ylxwOg2pXrc GPS module (Banggood): http://goo.gl/r0Txmz OLED screen (Banggood): http://goo.gl/CXtw3r Quad specs: SS 2204, Kingkong 5040BN, 3S 1400mAh 40c, AUW 570g ... https://www.youtube.com/watch?v=eY97sX-Nb3I