I chose ultrasonic transmitter MA40S4S and receiver MA40S4R. In the German data sheet there are many application notes with many examples of schematics. I did not find these documents in English though.

The following diagrams were created with KiCad/Eeschema based on the data sheet.

My plan is to build sub-modules that transmit and receive. Both use the same interface, which will also be used by a measurement-device. For this device all I have so far is a vague concept which I will refine in a future post:

- maybe a box with several interfaces (minimum of four) for connecting sub-modules, which
- output the 'burst*
- analogue input from three sensors
- ADC for said analogue inputs. maybe a 1 bit ADC (aka schmitt trigger)
- inside some kind of digital signal processor. may even be a small 8 bit µC
- output of scanned image. maybe a display or connector for a computer which runs 'display software'

For now I will focus on creating some sub-modules and test them with an oscilloscope.

Ideally this will allow me to test my concept (in 2D for I only own a two channel oscilloscope right now).