| Small ultrasonic distance module is 1.8" X 0.8" X 0.65" Thick. Great for use with open source code logic boards. Module sends eight 40kHz square waves out, then automatically detects the returning wave. What you see in the picture is what you get. No schematic or documentation included. You can search the Internet for hundreds of how to articles for applications. Sorry, we can't provide any technical help for this item. |