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IO Tester with better debouncing reference design (Entrex) | Open App Note

Entrex

ForgottenMachines

Components (5)

Reference	Value	Description
U2	74LS74
R1,R4	4.7k
R2,R3	R_US
SW1	SW_SPDT
SW2,SW3	SW_DIP_x01

Entrex schematic

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Entrex board