# Case 09: The Crawl Robot ## Purpose --- Make a crawl robot with [NezhaA Inventor's Kit](https://shop.elecfreaks.com/products/elecfreaks-arduino-36-in-1-nezha-a-inventors-kit?_pos=2&_sid=e1dfa3343&_ss=r). ![](./images/neza-a-case-09-01.png) ## Purchse --- [NezhaA Inventor's Kit](https://shop.elecfreaks.com/products/elecfreaks-arduino-36-in-1-nezha-a-inventors-kit?_pos=2&_sid=e1dfa3343&_ss=r) ## Materials Required --- ![](./images/neza-a-case-09-02.png) ## Assembly Steps --- ![](./images/neza-a-step-09-01.png) ![](./images/neza-a-step-09-02.png) ![](./images/neza-a-step-09-03.png) ![](./images/neza-a-step-09-04.png) ![](./images/neza-a-step-09-05.png) ![](./images/neza-a-step-09-06.png) ![](./images/neza-a-step-09-07.png) ![](./images/neza-a-step-09-08.png) ![](./images/neza-a-step-09-09.png) ![](./images/neza-a-step-09-10.png) ![](./images/neza-a-step-09-11.png) ![](./images/neza-a-step-09-12.png) ![](./images/neza-a-step-09-13.png) ![](./images/neza-a-step-09-14.png) ![](./images/neza-a-step-09-15.png) ![](./images/neza-a-step-09-16.png) ![](./images/neza-a-step-09-17.png) ![](./images/neza-a-step-09-18.png) ![](./images/neza-a-step-09-19.png) ![](./images/neza-a-step-09-20.png) ![](./images/neza-a-step-09-21.png) ![](./images/neza-a-step-09-22.png) ![](./images/neza-a-step-09-23.png) ![](./images/neza-a-step-09-24.png) ![](./images/neza-a-step-09-25.png) ![](./images/neza-a-step-09-26.png) ## Hardware Connections --- Connect the [motor](https://www.elecfreaks.com/geekservo-motor-2kg-compatible-with-lego.html) to M1 port on [Nezha-A master box](https://www.elecfreaks.com/arduino-3-in-1-master-control-box.html). ![](./images/neza-a-case-09-03.png) ## Programming --- ### Prepare the programming Steps for preparation please refer to: [Arduino 3 in 1 Breakout Board](https://www.elecfreaks.com/learn-en/Arduino-3-in-1-box/Arduino-3-in-1-box.html). ### Sample Code: ``` // Language ArduinoC #include NezhaA nezhaA; //Create an instance of Nezha category void setup() { nezhaA.begin(); //Initiliaze the buzzer, motor, servo and light nezhaA.setMotorSpeed(M1, 100); // Set the speed of the motor connecting to M1 at 100% } void loop() { } ``` ### Result After powering on, the robot crawls forward.