【ESP32 Learning】Using buttons

dcexpert

【ESP32 Learning】Using buttons [Copy link]

 

There are two buttons on the board, one is the reset button and the other is the programming/user button. The user button uses GPIO0. We set it to input mode and then we can read the button status. The following program first reads the button status and then sets the LED. Because the button is low effective, the output is negated (not).

1. from machine import Pin SW = Pin(0, Pin.IN) LED = Pin(21, Pin.OUT) while 1: LED(not SW())

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