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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    {SOLVED} How to make a momentary push button that exit games and take me back to game menu ?

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    push buttonretropiepsxscriptnewbie
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    • mituM
      mitu Global Moderator @O.M.A.A
      last edited by mitu

      @O-M-A-A The numbering can be done in 2 ways

      • pin number (1 - 40) - the inner numbers in your picture.
      • so called Board/BCM (?) numbers - the outer labels in your picture.

      If you look at how your wiring picture looks like, you see that the power wires are using pins 5 and 6, not GPIO5 and GPIO6. The numbers in your script are the PIN numbers, not the GPIO (outer) labels.

      cyperghostC O 2 Replies Last reply Reply Quote 0
      • cyperghostC
        cyperghost @mitu
        last edited by cyperghost

        @mitu You surly already know this website ;) https://pinout.xyz/#
        Maybe this will help @O-M-A-A, too

        @O-M-A-A

        Can use it in GPIO 3 instead of the power button ? and remove the power button wires as I don't need it.

        The GPIO is a bit special one. It let's the Raspberry recover/restart from deep sleep mode. So it's very common in use for power off/power on events.
        Do use this switch cable to full cut power from the Pie - after Powerdown. But never cut power by force

        1 Reply Last reply Reply Quote 0
        • O
          O.M.A.A @mitu
          last edited by

          @mitu @cyperghost
          the exit emu button is on pins 25 and 26 which GPIO 7 I was using

          Can use it in GPIO 3 instead of the power button ? and remove the power button wires as I don't need it.

          mituM 1 Reply Last reply Reply Quote 0
          • mituM
            mitu Global Moderator @O.M.A.A
            last edited by

            @O-M-A-A said in How to make a momentary push button that exit games and take me back to game menu ?:

            Can use it in GPIO 3 instead of the power button ? and remove the power button wires as I don't need it.

            You do need it, because that switch that you want to buy will not shut down properly your PI (i.e. will not run the shutdown command), it will merely cut down the power.

            O 1 Reply Last reply Reply Quote 0
            • O
              O.M.A.A @mitu
              last edited by

              @mitu I see, so what to do now

              cyperghostC 1 Reply Last reply Reply Quote 0
              • cyperghostC
                cyperghost @O.M.A.A
                last edited by cyperghost

                @O-M-A-A Hope I tranlated correct

                "bite together and pull through the cheeks"

                You are close to finish this!

                1 Reply Last reply Reply Quote 0
                • O
                  O.M.A.A
                  last edited by O.M.A.A

                  @mitu @cyperghost yeah, thank you.

                  it looks awesome, everything is working except the 1 button which is not a big deal, I will search for my problem. thanks guys a lot for your help and patience. I'm rly grateful for the time u spent it with a newbie ;D.

                  O 1 Reply Last reply Reply Quote 0
                  • O
                    O.M.A.A @O.M.A.A
                    last edited by

                    @cyperghost @mitu
                    I was thinking, I have tried the button with every pins, one of these pins executed the letter H on the keyboard, and I was able to make the button as hotkey.
                    is it possible to make this key also perform the start button, so when pressed will function as a start and hotkey which will exit the emulator ;D.

                    1 Reply Last reply Reply Quote 0
                    • mituM
                      mitu Global Moderator
                      last edited by mitu

                      I just tried on by PCB and the reset button is wired on PIN3, with the other one wired to a GND pin.

                      Here's a little script you could run (python <script.py>) to check a PIN for a momentary press

                      #!/usr/bin/python
                      import RPi.GPIO as GPIO
                      import time
                      import subprocess
                      
                      pinNo = 3
                      GPIO.setmode(GPIO.BOARD)
                      GPIO.setup(pinNo, GPIO.IN)
                      
                      while True:
                          #grab the current button state
                          buttonState2 = GPIO.input(pinNo)
                      
                          if not buttonState2:
                              # Reset emulator
                              print "pressed " + str(pinNo)
                      

                      You can test various pins for button press by replacing changing pinNo to your desired Pin number.

                      The original script I posted can probably be simplified as

                      #!/usr/bin/python
                      import RPi.GPIO as GPIO
                      import time
                      import subprocess
                      
                      GPIO.setmode(GPIO.BOARD)
                      
                      shutdownPin=5
                      resetPin=3
                      
                      GPIO.setup(shutdownPin, GPIO.IN)
                      GPIO.setup(resetPin, GPIO.IN)
                      
                      oldButtonState1 = True
                      
                      while True:
                          #grab the current button state
                          buttonState1 = GPIO.input(shutdownPin)
                          buttonState2 = GPIO.input(resetPin)
                      
                          # check to see if button has been pushed
                          if buttonState1 != oldButtonState1 and buttonState1 == False:
                              # shutdown
                              subprocess.call("shutdown -h now", shell=True,
                                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                              oldButtonState1 = buttonState1
                          
                          if not buttonState2:
                              # Reset emulator
                              print "Reset pressed"
                              subprocess.call("/home/pi/scripts/multi_switch.sh --es-closeemu", shell=True,
                                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                      
                          time.sleep(.3)       
                      
                      O 1 Reply Last reply Reply Quote 1
                      • O
                        O.M.A.A @mitu
                        last edited by

                        @mitu dudeeee,
                        it works ;DDD, thank you so much for ur efforts, I couldn't believe it xD
                        ur amazing, I really appreciate it.
                        Also, thanks to you @cyperghost u guys are awesome

                        O 1 Reply Last reply Reply Quote 0
                        • O
                          O.M.A.A @O.M.A.A
                          last edited by

                          @mitu

                          #!/usr/bin/python
                          import RPi.GPIO as GPIO
                          import time
                          import subprocess
                          
                          GPIO.setmode(GPIO.BOARD)
                          
                          shutdownPin=5
                          resetPin=3
                          
                          GPIO.setup(shutdownPin, GPIO.IN)
                          GPIO.setup(resetPin, GPIO.IN)
                          
                          oldButtonState1 = True
                          
                          while True:
                              #grab the current button state
                              buttonState1 = GPIO.input(shutdownPin)
                              buttonState2 = GPIO.input(resetPin)
                          
                              # check to see if button has been pushed
                              if buttonState1 != oldButtonState1 and buttonState1 == False:
                                  # shutdown
                                  subprocess.call("shutdown -h now", shell=True,
                                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                                  oldButtonState1 = buttonState1
                              
                              if not buttonState2:
                                  # Reset emulator
                                  print "Reset pressed"
                                  subprocess.call("/home/pi/scripts/multi_switch.sh --es-closeemu", shell=True,
                                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
                          

                          this script made it work, like magic

                          Thanks a lot

                          1 Reply Last reply Reply Quote 0
                          • mituM
                            mitu Global Moderator
                            last edited by

                            Glad you got it working.
                            One minor correction - add back the sleep timer at the end, otherwise the script will consume more resources than needed. I've edited my previous post with the timer line. Make sure you copy the script again and preserve the indentation.

                            O 1 Reply Last reply Reply Quote 2
                            • O
                              O.M.A.A @mitu
                              last edited by

                              @mitu sure bro, again thank you very much

                              1 Reply Last reply Reply Quote 0
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