SparkFun Infrared Proximity Sensor Short Range - Sharp GP2Y0A41SK0F Infrared, Adapter Rings The ¾" connection will accept

The ¾" connection will accept a 19mm ID hose

and any residue from jewelry

Check the drawing below

LED indicator for fix or no fix

This buzzer is an add-on for your RedBot that gives your robot the ability to make awesome beep-boop noises or alerts when something interesting (or terrible) happens

SparkFun Infrared Proximity Sensor Short Range - Sharp GP2Y0A41SK0F Infrared, Adapter Rings The ¾" connection will acceptInfrared proximity sensor made by Sharp. Part # GP2Y0A41SK0F has an analog output that varies from 3. 1V at 4cm to 0. 3V at 30cm with a supply voltage between 4. 5 and 5. 5VDC. The sensor has a Japanese Solderless Terminal (JST) Connector. We recommend purchasing the related pigtail below or soldering wires directly to the back of the module. Documents: Datasheet GP2Y0A41SK0F