Help with [ESC] to menu

[juicebox]

I am trying so setup a script that will execute an [ESC] when a button is pushed (wired to the GPIO). I have tried writing a bash script using xdotool to no avail and have now switched gears to a python script using uinput. Here is my script:

#!/usr/bin/env python

import RPi.GPIO as GPIO
import os
import time
import uinput

#Setup
GPIO.setmode(GPIO.BCM)
GPIO.setup(6, GPIO.IN)
KEY_EVENTS = (uinput.KEY_ESC, uinput.KEY_X)
DEVICE = uinput.Device(KEY_EVENTS)

while True:
        GPIO.wait_for_edge(6, GPIO.FALLING)
        print("Button pressed...")
        start_time = time.time()

        GPIO.wait_for_edge(6, GPIO.RISING)
        time_pressed = time.time() - start_time

        if time_pressed < 6:
                print("[ESC] key sent")
                DEVICE.emit_click(uinput.KEY_ESC)
        else:
                print("Power down")
                GPIO.cleanup()
                os.system("sudo reboot")

        time.sleep(2)

After the pi boots, I exit the emulator and run

./myscript.py $

Then restart the emulator, load a ROM, and push my little black button. You’re not gonna believe this but, the damn thing doesn’t work. If I hit the [ESC] on my keyboard, I get back to the menu without fail. I know the input logic is working because I can see the returned output lines in the terminal window, and the logic that drives rebooting if the button is pushed for more that 6 secs works well. Any help here would be appreciated.

[ectoarckanox]

Hi,

I’ve tried to do the same thing and stumbled into the same issue :(

Did you find a solution ?

thanks in advance :)

[brooksyx]

You have to press the GPIO 3 times in a row to register the esc key being pressed.

I rewrote snesdev to only need it to be pushed once. Build from my git and replace the snesdev included with retropie:

https://github.com/brooksyx/SNESDev-RPi

[ectoarckanox]

first, thanks for answering so quickly.
I was aiming for a solution that was not using snesdev, like juicebox here above.
but with a lot of my research results pointing to snesdev, it was my fallback option if plan A was not working.

I’ll try your version, thanks for sharing.

Which gpio pin do I have to connect my switch to? I just need the reset button.

thanks!

[Author]

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