Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave Shield. Originally, this parking/distance sensor used a small TFT to display the distance to ...

Their Expected Goal Difference (xGD) of 12.6 was miles better than the Wave’s 5.2, but they too had some streaky form, especially at the end which cost them the shield yet again. The injury ...