# Case 04: Face-tracked Device ## Purpose To make the AI Lens be able to recognize the face and track it. ![](./images/05035_01.png) ## Products Link [ELECFREAKS Smart AI Lens Kit](https://shop.elecfreaks.com/products/elecfreaks-smart-ai-lens-kit?_pos=1&_sid=d572dc26c&_ss=r) [ELECFREAKS Nezha Breakout Board](https://shop.elecfreaks.com/products/elecfreaks-nezha-breakout-board?_pos=1&_sid=327dd9f18&_ss=r) [ELECFREAKS 360 Degrees Building Blocks Servo](https://shop.elecfreaks.com/products/elecfreaks-360-degrees-building-blocks-servo?_pos=1&_sid=3db386e1d&_ss=r) ### Materials Required and Connection Diagram Build a device with the bricks as below: ![](./images/05035_04_03.png) ![](./images/05035_04_04.png) Connect the device with a servo: ![](./images/05035_04_05.png) Connect the AI Lens with the device: ![](./images/05035_04_06.png) Connect the AI Lens to the IIC port and the two servos to S1 and S2 separately.(Here S1 controls the movement of "X", S2 controls the movement of "Y") ![](./images/05035_04_07.png) ## MakeCode Programming ### Step 1 Click "Advanced" in the MakeCode drawer to see more choices. ![](./images/05001_04.png) We need to add a package for programming. Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it. ![](./images/05001_05.png) ***Note:*** If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu. ### Step 2 ### Code as below: ![](./images/05035_04_08.png) ### Link Link: [https://makecode.microbit.org/_Xxs0je5ERXvi](https://makecode.microbit.org/_Xxs0je5ERXvi) You may also download it directly below:
### Result The AI Lens would track your face(move along with your face).