Your first workflow
Read a button and blink an LED.
A workflow that reads a button on one pin and mirrors it on an LED on another. This is what you'll build — click a node to see its details:
Create it
In the Hub, click New workflow, name it, pick the ESP32 board and the latest platform.
Add the GPIO component
Install GPIO from the component store if it isn't in your library, then add two of its actions to the canvas: Read and Write.
Wire it
Connect Start → Read and Read (Success) → Write. On Read, pick the button's pin. On Write, pick the LED's pin.
Bind the value
Drag Read's value output onto Write's Value field: Write now drives the LED with
whatever Read published, instead of a fixed HIGH or LOW.
Run it
Pick your driver and the board's port, then Execute. In loop mode the flow goes back to Start after Write, so the LED follows the button continuously.
To see what each step does, press Debug instead — the flow pauses after every action with its outputs on the node. See Running and debugging.