modified 15 hours ago

GPIO Pull-Up Button Active-Low

00:06:55

This circuit demonstrates a GPIO input with a pull-up resistor.

The GPIO pin is represented by the junction between the 10 kΩ resistor, the push button, the LED branch, and the voltmeter positive probe.

Watch the voltmeter: when the button is released, the GPIO pin is pulled up to 5 V and reads logic HIGH. When the button is pressed, the pin is connected to ground and reads logic LOW.

The LED is only a visual indicator. It turns on when the button pulls the GPIO pin LOW.

published 15 hours ago

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.