Simple dyno electronics and program

Schematic (PDF) schematic01.jpg (205163 bytes)

On top the extra USB-female connector to feed the PCB.

audio2usb1.jpg (111059 bytes)
PCB (PDF) pcb01.jpg (203103 bytes) Right the  extra power femaleconnector. audio2usb2.jpg (98970 bytes)
PCB ready to use

Blue = line-in

Pink = mic-in

Green = headphone out

audio2usb3.jpg (110090 bytes)
 
Dynoprogram
Calculationprogram