Input & control
Tactile Switch
A push button. Current flows only while you hold it down.
- Family
- Input & control
- Terminals
- end (right), end (left)
- On the workspace
- Hold to press
Input & control blocks
Input and control blocks decide when current flows. Switches open and close the path, and the potentiometer changes how much resistance is in it.
Circuits that use this block
- First buildPress to lightA push button lights the LED only while you hold it.
- First buildAND gate: two buttons in seriesBoth buttons must be pressed at the same time.
- First buildOR gate: two buttons in parallelEither button lights the LED.
- Next stepSwitching with a transistorA tiny current through the base turns on the LED.
- Next stepCharge it, release itThe left button charges the capacitor (the buzzer blips). The right button lets it discharge through the LED.
- Next stepCapacitor delay-off timerPress the button and the LED stays on for a while after you let go.