I'm trying to pause code execution till a button is pressed and this is what I came up with. I have not tested this but can anyone tell me if this is the right way to go about it? Button 'pressed' is active HIGH on the GPIO pin.
import RPi.GPIO as GPIO
GPIO.setmode (GPIO.BOARD)
#BCM uses the GPIO numbers while BOARD uses the actual pin number
GPIO.setwarnings (False)
while GPIO.input(17) == False:
pass
print ("Button 1 pressed")
GPIO.cleanup()
That's one way of doing it - it will work. The better way is to use GPIO.wait_for_edge(17, GPIO.RISING) which will pause at that line until the button is pressed (on a RISING or FALLING edge).
However, BOARD numbering pin 17 is not a GPIO, it's 3V3.
You could also use GPIO Zero which is more intuitive (and uses BCM numbering):
from gpiozero import Button
btn = Button(17)
btn.wait_for_press()
print("Button pressed")
You can use Button(17, pull_up=False) if it's pulled down, and the "pressed" state is relative to that.
I have not tested this... why not? ... that is all part of research that you should have done before posting your question