Micro:bit Independent Button Module Touch Switch Button Support 3 Connection Methods
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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.
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
VCC: power supply interface, can be connected to 3.3V, 5V
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
1 x button module
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