jeroen2 wrote:
> I was having a hard time getting that to work as well.. Ended up up
> adding the following to config.txt and that works fine..
> >
Code:
--------------------
> > dtoverlay=gpio-key,gpio=5,keycode=16 # KEY_q power
> dtoverlay=gpio-key,gpio=6,keycode=57 # KEY_SPACE play-pause
> dtoverlay=gpio-key,gpio=16,keycode=48 # KEY_b jump-forward
--------------------
> >
hi jeroen2 this works preety well and easy without downloading anything
simple and awesome!!!
thank you verry much!!
i also try to make it work with a rotary encoder (as gpiokey) that
emulates the arrow keys of a keyboard without success (and its very
logical since a rotary encoader gives pulse A and B even if you turn it
clockwise or anti clockwise
so with a reaserch i found this
Code:
--------------------
Name: rotary-encoder
Info: Overlay for GPIO connected rotary encoder.
Load: dtoverlay=rotary-encoder,<param>=<val>
Params: pin_a GPIO connected to rotary encoder channel A
(default 4).
pin_b GPIO connected to rotary encoder channel B
(default 17).
relative_axis register a relative axis rather than an
absolute one. Relative axis will only
generate +1/-1 events on the input device,
hence no steps need to be passed.
linux_axis the input subsystem axis to map to this
rotary encoder. Defaults to 0 (ABS_X / REL_X)
rollover Automatic rollover when the rotary value
becomes greater than the specified steps or
smaller than 0. For absolute axis only.
steps-per-period Number of steps (stable states) per period.
The values have the following meaning:
1: Full-period mode (default)
2: Half-period mode
4: Quarter-period mode
steps Number of steps in a full turnaround of the
encoder. Only relevant for absolute axis.
Defaults to 24 which is a typical value for
such devices.
wakeup Boolean, rotary encoder can wake up the
system.
encoding String, the method used to encode steps.
Supported are "gray" (the default and more
common) and "binary".
--------------------
i try this comand
Code:
--------------------
dtoverlay=rotary-encoder,rotary0_2_a=keycode=103
--------------------
but it does not work , i would be gratefull if anyone tell me how to
make the encoder emulates the up-down arrows of the keyboard
thank you again vasilios
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