mob-io-array-switch-8x

Switch arrays Module Board

8 x "active-low" switch input array module board. This MOB can operate at both 3V3 and 5V.

Schematic

PCB Layout

Bill of Materials

• paperboard 5x7cm

• 2-pin (Molex-KK) power connector

• bulk capacitor (tantalum) 10uF 16V

• led current limiter resistor 1Kohm

• power activity led green 3mm

• 2 x 4-pin (Molex-KK) data connectors

• 8 x pull-up resistor 10Kohm

• 8 x data switch SPST (NO)