mholgatem
commented
2 years ago Sorry about the lateness of this reply. That pin is not supported by rpi.gpio. I don't remember all of the specifics, but I believe that the system reserves it for communications with hats. They can be un-reserved and used, just not with rpi.gpio (hence, not with gpionext, which relies on rpi.gpio). Sorry that this isn't more helpful!
for future reference, here's a list of all available physical pin #'s that can be used with gpionext
-- --
03 --
05 --
07 08
-- 10
11 12
13 --
15 16
-- 18
19 --
21 22
23 24
-- 26
-- --
29 --
31 32
33 --
35 36
37 38
-- 40
I used to map gpio 0 (SDA.0) to ‘up’ with [mk_arcade_joystick], which is not that powerful as Gpionext, on pi0. But when trying Gpionext, it won’t work as gpio 0 can’t be detected. I don’t want to modify the hardware. Please help to make the gpio 0 able to work. Thx a lot(●°u°●) 」