DaughterCard v1.0 Ultrasonic short-Range improvement

Perform Engineering, layout and schematic work resulting in a PWB design ready for fabrication of prototype circuit board. The shortest range of the JSN-SR04T is 24cm. This range needs to be reduced to approximately 7-12cm. The microprocessor host board (v3.0) will inject its own pulse sequence of 1 pulse, 4 pulses, or 8 pulses on the ‘Trigger’ input. Each pulse will be 10 usec to 13.5 usec in width. The returning waveform needs to be on the ‘Echo’ output pin. The returning waveform will be processed by the microprocessor host board (v3.0).