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Problem with GPIO 0 - TTGO T-Display ST 7789V #329
Description
hi,
I have a problem with TTGO T-Display ST 7789V
Button GPIO 0 does not work after presses button (print always 0)
Button GPIO 35 it's OK (print 1 after presses button print 0)
test code:
from machine import Pin
from time import sleep
button = Pin(0, Pin.IN)
while True:
print(button.value())
sleep(0.1)
II have tested with other Micropython and it works.
is there a problem ?
Thanks for your help.
Activity
MaXIP21 commentedon Jan 14, 2022
Hello,
The difference between the two pins is the following the Pin35 is pulled up by a resistor on the board and the Pin0 is not so you should define it as PULL_UP in order to use it, also if you define as Pin.IN the value can't be read so define it as Pin.INOUT so the correct code would be:
from machine import Pin
from time import sleep
button = Pin(0, Pin.INOUT, Pin.PULL_UP)
while True:
print(button.value())
sleep(0.1)
and that will work.
:)