Changes
/* How to assemble it */
*plug joystick on slot JA1 (Vcc 3.3v is common)
*plug another joystick on slot JB1 (Vcc 3.3v is common)
*plug a jack on slot JD1, one at upper GND plug, and second wire at next plug, just at left of it (if it was 3.3v Vcc, is that in fact you had to take choose the right oneinstead)
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