![TFW-G-0048](https://akadako.com/grove/assets/TFW-G-0048/picture.png)
Description
The actuator of this Unit is consist of a pair of IR part, emitter side and receiver side(silicon phototransistor). The IR emitter will keep sending IR wave while the receiver will keep detecting the IR wave. The IR is directly emitted from one side to another side, so if there's no object in between, the receiver side would get the IR signal. This is how it detecting a break an electrical connection.
![](https://akadako.com/grove/assets/TFW-G-0048/program_en.png)
Program:https://akadako.com/grove/assets/TFW-G-0048/program.sb3
How to use SB3 file
After downloading sample SB3 file on this page, go to Xcratch or Stretch3. Click on "Load from your computer" and select the file you downloaded to open it. After opening the file, connect AkaDako to your PC and check the operation of the sensors and actuators.
![How to use sb3 file](https://akadako.com/wp-content/themes/akadako/img/how-to-sb3_en.png)
Purchase
https://shop.m5stack.com/products/90-infrared-reflective-unit-itr9606