Multi Switch Shutdown Script!

cyperghost

gollumer

I just got a nespi+ case, and installed your script (I never installed the one from nespi). It restarts ES fine, but I don't think it's doing the safe shutdown correctly. When I press the power button, it goes straight to a black screen and shuts off. I don't see the screen output doing it's safe shutdown processes.

I used the instructions here to install: https://retropie.org.uk/forum/topic/17461/nespi-case-reset-works-power-doesnt/16

I did install raspi-gpio as well.

If I run this at the command line, I get a pid: ./multi_switch.sh --es-pid
I tried running the shutdown command from the command line as well (./multi_switch.sh --es-poweroff), but it goes straight to a black screen as well...not a safe shutdown.

What could be wrong?

I have an RPi3, running RetroPie 4.3.

cyperghost

@gollumer Well... did you checked if your favourites are saved? I regard your feedback as the script is doing it's work fine in a NESPI+ case. Let me explain: I tested several times on my system (It's exactly like yours: RPi3 and RetroPie 4.3) and I was able to save favourites and even scraped data with the switches --es-poweroff you used, too. So I see no fails or flaws. The shutdown is incredible fast because it terminates each session as long as the PIDs are not valid anymore.
The trick is, that if the ES binary received the -TERM signal annother script (it's internal in ES) takes over and initiates the shutdown. So it behaves exactly as you restart/reboot/shutoff via ES's QUIT from Main Menu!

You can view the script here nano /opt/retropie/supplementary/emulationstation/emulationstation.sh - this is responsible for restart ES and other system shutdowns.

But please tell me if following things are working (because NESPi+ is still WIP, caused by I don't have this device here in range for testing, so everything is done with code reading and some photographs of the connectivity to the GPIO heads)

You press POWER ON and the system starts, LED will glow if script is loaded
You press POWER OFF inside ES (even with emulators running) and the system performs a save shutdown (with metadata, favourites .... saved) - LED blinks 4 times and stays off
You press RESET with emulator running and you will be returned to ES
You press RESET within ES and it restarts ES (NO REBOOT!!!)

Thanks for your support!

gollumer

@cyperghost said in Multi Switch Shutdown Script!:

But please tell me if following things are working (because NESPi+ is still WIP, caused by I don't have this device here in range for testing, so everything is done with code reading and some photographs of the connectivity to the GPIO heads)

You press POWER ON and the system starts, LED will glow if script is loaded
You press POWER OFF inside ES (even with emulators running) and the system performs a save shutdown (with metadata, favourites .... saved) - LED blinks 4 times and stays off
You press RESET with emulator running and you will be returned to ES
You press RESET within ES and it restarts ES (NO REBOOT!!!)

Thank you for your response. Here are the answers to your questions:

Yes, POWER ON = the system starts, and LED lights up.
No, POWER OFF inside ES did not perform a safe shutdown, no metadata saved. The LED blinked 4 times, then the screen went black. Prior to pressing POWER OFF, I had added a game to my Favorites collection, and verified that it was there. After turning off, then turning back on, the game was no longer in my Favorites collection.
No, RESET with emulator running does nothing.
Yes, RESET within ES (but not emulator running) restarts ES without rebooting.

So, as you can see, it's partially working, but not completely (and the most important one...#2 (safe shutdown)...is not working.

cyperghost

@gollumer Okay thanks.

Script works!

It is essential to set the switch in the NESPi+ CASE in ON position!

gollumer

Update: I opened up the nespi+, turned the switch from ON to OFF, then back to ON, and now it's saving metadata! Seems that it wasn't completely in the ON position. Also, RESET from within an emulator now works as well. (I think the issue with that before was I was just pressing it quickly, not holding it for a second...)

So, problem solved.

cyperghost

@gollumer Perfect! As I said - some people like @meleu @TMNTturtlguy and me spent tons of time to elaborate a working solution! So I was pretty sure the script works!

Annother questions:
Do you have a fan installed in your system?
Do you load the script per autostart.sh or via rc.local? Both versions do work but I prefer always the autostart solution.

gollumer

Yes, I have a fan. I installed it on the 3.3v connector instead of 5v so that it's not as loud. I'm loading the script in autostart.sh.

cloudlink

I installed this script with my Nespi+ case and it works perfectly!
I also have a fan. If I plug it into a 3.3v pin, what scripts are available to control it?

cyperghost

@gollumer Good catch ;)
But you have to connect it to the FAN connection position in the NESPi+ case
Even if it's loud! Directly connected to 3,3V will affect nothing
I assume it's not powered down even the Raspberry is shutdown.

Therefore... can you exit ES to terminal and then write:
raspi-gpio set 4 op dl
This will powerdown GPIO 4 and may also shuttoff the fan!
But please exit ES to terminal first. I don't want that you will loose data as I don't know what happens.

If this works you can uncomment line 184 from script!
and then NESPi+ is 100% working

    # PowerOff LED, Poweroff PowerCtrl
    raspi-gpio set $GPIO_lediodectrl op dl
#    raspi-gpio set $GPIO_poweronctrl op dl #Really have no clue what it does!

# Initiate Shutdown per ES

@cloudlink
Same question: I think the fan isn't powered off so it will always run.
Maybe that's the magic of GPIO4!

But you have to connect it to the FAN connection position in the NESPi+ case
Even if it's loud! Directly connected to 3,3V will affect nothing

cyperghost

@cloudlink said in Multi Switch Shutdown Script!:

If I plug it into a 3.3v pin, what scripts are available to control it?

Then you can use raspi-gpio to powerdown that PIN - if you use a GPIO that let's the fan run! But this is not the recommended way ;) Usually those devices are connected to 5V rail (because this delivers 2.5A!) and a GPIO controls a switch to powerdown/poweron that device. Keep in mind ... the 3.3V GPIO rail only delivers 0.10 or 0.05A! That's much enough for a few LEDs and lots of microcontrollers but maybe not enough for a fan.

But I assume the NESPI+ fan connector itself is switchable. Because I've really NO idea why we need GPIO 4 (POWERONCTRL?)

If you want to make the fan switchable I would recommend you:

Try the connector into the case, this is maybe switchable (maybe GPIO 4 will do it's job)
Try to connect your fan to 5.0V or 3.3V line (that's PIN1 = 3.3 and PIN2,4=5V) and then use a MOSFET connected to a GPIO that switches fan on or off. Therefore raspi-gpio can be used.

gollumer

Lol. Yeah, I originally had the fan connected to the fan connector, but recently changed it due to the noise. You're right: the fan doesn't shut down. I'm not at home right now, but when I get home I'll try the command you suggest (raspi-gpio set 4 op dl) from the terminal and see what happens.

cloudlink

My fan is connected to GPIO pin 17. Will this make it so the fan runs when the Pi is on but the fan is off when the Pi is off?

gollumer

@cloudlink said in Multi Switch Shutdown Script!:

My fan is connected to GPIO pin 17. Will this make it so the fan runs when the Pi is on but the fan is off when the Pi is off?

That's the same pin I used...pin 17.

cyperghost

@gollumer said in Multi Switch Shutdown Script!:

Lol. Yeah, I originally had the fan connected to the fan connector, but recently changed it due to the noise. You're right: the fan doesn't shut down. I'm not at home right now, but when I get home I'll try the command you suggest (raspi-gpio set 4 op dl) from the terminal and see what happens.

Yes, thank you. I think that's the way the GPIO is intended for.

@cloudlink
About GPIO17, of course both of you can shutoff the fan by uncommenting line 184 in my script and then edit the call in line 311

 NESPiPlus 2 3 4 14

to

 NESPiPlus 2 3 17 14

But I assume GPIO 4 shutoff the fan if installed in case connector!

gollumer

Ok, I tried aspi-gpio set 4 op dl from the terminal, and nothing happened (as expected).

I then uncommented line 184, and edited line 311 as shown (replaced 4 with 17). I rebooted, then shutdown using the button. Shutdown is fine, but the fan is still working. So...perhaps I do need to go back to using fan connector.

cyperghost

@gollumer Yes I think the fan connector works with GPIO4, so please uncomment the line 184 and set the number back to 4. I think then it's possible to shutoff the fan.

Do you really use GPIO 17 or do you mean PIN 17 (That's a 3.3V Pin) and can't be shutoff! So this does not work at all! I would assume to the old connection provided by the case itself ;) GPIO 4 and the connector on the NESPi+ board ;)

cloudlink

Thank you cyperghost.
I connected my fan to the Nespi+ fan pins. I uncommented line 184 in /home/pi/RetroPie/scripts/multi_switch.sh. Now my fan turns on when I power on the system and my fan turns off when I power off the system.
I have the issue though where my fan is way too loud, spinning way too fast. Is it possible to control the power level?

gollumer

@cyperghost said in Multi Switch Shutdown Script!:

@gollumer Yes I think the fan connector works with GPIO4, so please uncomment the line 184 and set the number back to 4. I think then it's possible to shutoff the fan.

Do you really use GPIO 17 or do you mean PIN 17 (That's a 3.3V Pin) and can't be shutoff! So this does not work at all! I would assume to the old connection provided by the case itself ;) GPIO 4 and the connector on the NESPi+ board ;)

EDIT: Ok, I see...pin 17 on the GPIO board isn't the same as GPIO 17. I'm connected to pin 17.

https://pinout.xyz/

cyperghost

@cloudlink Okay NESPi+ is 100% supported now, thank you.
About the spinning speed.... Well I would not use resistors because you will likely need some that resists to 1-2Watts. The easiest way imho is to use 1 or 2 simple Si diodes. Each drops the voltage up to 0.7V so you have 4.3V if you use one or 3.6V if you use two diodes. That's a dirty hack but will work - 1N4001 and higher are a good choice.
The cleanest (cheap) way would be a step down regulator. The masters/professional way is a PWM regulator together with NTC/PTC ;)

@gollumer Yes we talk about BCM numbers and physical PINs there are also wPi numbers for complete confusion! But you're right use the common pinout helpers that are free to use ;)