Introduction:
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1.?Working principle
This?button module belongs to a self-reset type button. When the button is pressed(the triggering), that is, OUT and GND are connected, when the button is released, OUT is in a floating state.
When we set the OUT pin to the pull-up input, use the multimeter to test the OUT pin, it?is high. When the button is pressed, the OUT pin become?LOW, when the button is released, the OUT pin become?HIGH.
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2. Practical application
2.1 As a keyboard
2.2 As a key switch
2.3 Doorbell button
3. About Button
3.1 Button?module possess 4 Alligator clip?port, Corresponding to GND, VCC, NC and OUT. The OUT pin is the signal output pin of the button module.
3.2 4 pin?female socket.
3.3 PH2.0 cable interface.
When the button is pressed, the OUT pin become?LOW, when the button is released, the OUT pin become?HIGH.
Working Voltage: 3.3V/5V
More info for you to download
Parametes:
Size: 29.4*36mm
VCC: power supply interface, can be connected to 3.3V, 5V
GND: Ground
OUT: Press the button to output low level, release to output high level
NC: No need to connect
Working voltage: 3.3V/5V
Button: active low
Three interface methods: Alligator clip connection, DuPont cable connection, PH2.0 cable connection. Alligator clip, Dupont cable.
Four color optional: red/blue/green/yelllow
Package Included:
1 x button module
