超音波對空雷達: 使用SRF05超音波範圍檢測器與2自由舵機，可對空曠區域進行平面掃瞄、掃瞄到有物體進入則持續追蹤。物體消失則進行最後消失區域擴大掃瞄。有效距離為2cm-60cm。開發環境： arduino-Ultrasound-to-air radar: Use SRF05 ultrasonic range detector and 2 free steering gear, the plane can be scanned on the open area, there are objects entering the scan to keep track of. The disappearance of disappearance of objects, the regional expansion of the final scan. Effective distance of 2cm-60cm. Development Environment: arduino