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ADC-board-HX711 — A device for measuring keyboard switch force curves, and various measurements of different switches. | Open App Note

Open-Switch-Curve-Meter

bluepylons

A device for measuring keyboard switch force curves, and various measurements of different switches.

Components (17)

Reference	Value	Description
Q1	Q_PNP_BEC
U1	HX711
U2	SRV05-4
C1,C2,C5,C6,C8	100nF
C3,C4,C7	10uF
D1	D_TVS
D2	D_Zener
H1-H4,HT1-HT4	MountingHole
J1	Conn_02x05_Odd_Even
J2	Conn_01x04
J3	Conn_01x02
JP1	Jumper_NO_Small
L1	3.3uH
R3	20k
R4	8.2k
R5,R6	100
R8	10k

Open-Switch-Curve-Meter schematic

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Open-Switch-Curve-Meter board