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3 output and relay module DO IN terminal connected to form high-power reed switches
128kb flash)
and the connections function in either direction
4 Microphones
DO = to any Digital P/O
4x4 Keypad Button Membrane Switch measure 3 output and relay moduleSpecification: Product Name: Membrane Switch Key Type: 4x4 Botton: 16 Push Button Item Type: Switches Switch Type: Push Button Switch Features: Button Voltage: DC 12V Current: 30mA Contact Resistance: >=100 Ohm Force: 250 350g Contact Bounce: >1s Connector Pitch: 2. 54mm 0. 1'' Material: Plastic
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