12 mm Tactile Push Button
by Generic
SKU: PSA-CMP-BTN-12MM
No reviews yetTypical India street price
₹3–₹12
Momentary switch for user input.
Interface: Digital
Momentary switch into the kit button input (usually active LOW with pull-up).
Signal → D3 (GPIO0)
Blockly: sense_button
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Concept
Closes a circuit while pressed.
A little theory
Use INPUT_PULLUP: pressed = LOW. Debounce in software (~20–50 ms). In the classroom, treat 12 mm Tactile Push Button as a beginner part using Digital. Typical India street price is about ₹3–₹12. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project.
How it works in a project
One side to GND, other to pin with pull-up.
Classroom & project use
- Start/stop
- Menu
- Quiz buzzer
Buying in India
Precautions
- Share a common GND with the microcontroller
- Verify polarity and voltage before powering the circuit
Specifications
| Type | NO momentary |
| Category | Passive Components |
| Difficulty | Beginner |
| Voltage | Logic |
| Interface | Digital |
