Push button (ON/OFF) script problems?

paradadf · 17 Aug 2016, 07:36

Hello everyone!
I installed a momentary switch as described on the wiki and it works great. The only issue I'm having is that sometimes, when I plug/unplug an usb controller or usb stick, Recalbox turns off (or on) out of the blue. Has someone else experience this behavior?

Substring · 17 Aug 2016, 07:56

I've had such weird behaviours when playing around with the HDMI cable without using the power script ... D**n, what an unuseful comment I just wrote lol

supernature2k · 17 Aug 2016, 08:10

Some switches are very sensitive (especially old ones) and it can trigger some events when slightly moved.
I have the same problem with my NES power switch.

You can easily edit the script and change the function so that the button must be pressed x seconds to trigger the shutdown. it should solve this kind of problem.

D**n, THAT IS a useful comment

paradadf · 17 Aug 2016, 08:12

thanks! I'll try it and report back!

lackyluuk · 6 Oct 2016, 20:12

I have this behaviour as well. But I am not using any start / stop scripts. I just start recalbox and sometimes it reboots when I plug in a USB controller. I do not know what to do

The only scripts I use are two selfmade scripts for changing the system volume via gpio and a fan control. But I do not think this has an impact.

PenPen · 23 Aug 2016, 21:10

@lackyluuk said in Push button (ON/OFF) script problems?:

The only scripts I use are two selfmade scripts for changing the system volume via gpio and a fan control.

Hi,
Coud you explain your fan control script ? Thx

paradadf · 8 Sept 2016, 13:34

I've looked into
https://github.com/recalbox/recalbox-buildroot/blob/rb-4.1.X/board/recalbox/fsoverlay/recalbox/scripts/powerswitch.sh
and
https://github.com/recalbox/recalbox-buildroot/blob/rb-4.1.X/board/recalbox/fsoverlay/recalbox/scripts/rpi-pin56-power.py
but I still can't find which value I should change. Any hints, please?

supernature2k · 8 Sept 2016, 14:00

@paradadf

I'm working on a super script, I think it will help you.

paradadf · 8 Sept 2016, 14:26

@supernature2k the word SUPER before any other is always nice to read! Looking forward!

lackyluuk · 19 Sept 2016, 17:24

@PenPen: I am sorry for this way too late answer. Not sure if you need an answer anymore

Here is an example with GPIO pin 14 for controlling the fan. The indents might not be correct I had a little trouble with copy/paste the code
Hope I can help you with this

 #!/usr/bin/env python
 
import os
import time
import RPi.GPIO as GPIO
 
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
#Set max. temperature of CPU
TEMP_MAX = 67
ON_TIME = 200
#Set pin 14 as transistor gate
GATE = 14
#Set pin 14 as an output and shut down
GPIO.setup(GATE, GPIO.OUT)
GPIO.output(GATE, False)
 
def getCPUtemperature():
	 res = os.popen('vcgencmd measure_temp').readline()
	return(res.replace("temp=","").replace("'C\n",""))
 
while True:
 
		temp_float = float(getCPUtemperature())
 
	try:
		if (temp_float > TEMP_MAX):
			# ein
			GPIO.output(GATE, True)
			time.sleep(ON_TIME)
			# aus
			GPIO.output(GATE, False)
		else:
			GPIO.output(GATE, False)
		
except KeyboardInterrupt:
	print float(getCPUtemperature())
	print "power off fan..."
	GPIO.output(GATE, False)
	print "cancelling..."

Forgot to attach a short drawing. I used the official RaspberryPI 5V DC fan.

supernature2k · 19 Sept 2016, 17:11

Awesome!!!!!

But I'm not sure 'bout the infinite loop.

Maybe add a time.sleep somewhere for less CPU?

whatcha think @subs ?

PenPen · 20 Sept 2016, 16:25

@lackyluuk said in Push button (ON/OFF) script problems?:

@PenPen: I am sorry for this way too late answer. Not sure if you need an answer anymore

Thanks ! I'll buy composants tomorrow.

lackyluuk · 22 Sept 2016, 11:03

@supernature2k yes, this could be a good idea. Would it be useful to have a time.sleep in the while loop? So it checks the temp only every 2 seconds for example.

supernature2k · 22 Sept 2016, 11:41

Yes I think so, at the end of the while.

1 or 0.5 seconds would be ok too I guess.

dh04000 · 6 Oct 2016, 20:12

@lackyluuk said in Push button (ON/OFF) script problems?:

The only scripts I use are two selfmade scripts for changing the system volume via gpio and a fan control. But I do not think this has an impact.

How do you do this? The gpio volume control? Could you post this script?

Also, I have OP's problem with crashing after installing the gpio on/off button with usb controller unpluging, as well as sometimes random.

@supernature2k said in Push button (ON/OFF) script problems?:

Some switches are very sensitive (especially old ones) and it can trigger some events when slightly moved.
I have the same problem with my NES power switch.

You can easily edit the script and change the function so that the button must be pressed x seconds to trigger the shutdown. it should solve this kind of problem.

D**n, THAT IS a useful comment

How do I change the time to be longer? I think my gpio momentary switch might be picking up some signal from my speakers, wifi, light system, something....

lackyluuk · 7 Oct 2016, 06:59

@dh04000 Here is a wiki article that I wrote. This should help you. I used the Hifiberry Shield to access the ALSA controls.

https://github.com/recalbox/recalbox-os/wiki/Audio-HiFiBerry-(EN)

Tardigrada · 5 Nov 2016, 18:21

Hello, I'm completley new to this stuff so just to make shure I don't damage my Raspberry can someone confirm that following these steps will make the fan-control script work?

On my Linux Desktop I create an empty textfile in which I paste the fan-script posted here.
I rename the file into fancontrol.py and move it into /recalbox/share/system/ on the sd-card.
On Recalbox i quit emulationstation, open the terminal and navigate to the share/system directory and make my script executable with chmod +x fancontrol.py so it is ran at boot

And last question (for now:) - where in the script should i paste the time.sleep(1) so it only checks every second for the temp?
Thanks in advance!

miserytom · 3 Dec 2016, 18:34

Where the hell do I paste the fan script ????

lackyluuk · 4 Dec 2016, 10:30

calm down @miserytom

I suggest you to put it into /recalbox/scripts and then in /etc/init.d (where all startup scripts are located) you could place another script which is starting your fan script in a background process

azvarel · 4 Dec 2016, 10:41

@paradadf

I'm having a similar problem, I noticed two situations that happened with version 4.0 final the first was that in recalbox.conf the system.power.switch=PIN56ONOFF command duplicated several times, and the second that if I do screenscrapper of a very large romset example GBA simply out of nothing Rpi is turned off.

There is a third option, the wifi in the recalbox shows that it is not connected, however I get access with your ip (this for me is very strange)

Push button (ON/OFF) script problems?

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	#!/usr/bin/env python

	import os
	import time
	import RPi.GPIO as GPIO

	GPIO.setwarnings(False)
	GPIO.setmode(GPIO.BCM)
	#Set max. temperature of CPU
	TEMP_MAX = 67
	ON_TIME = 200
	#Set pin 14 as transistor gate
	GATE = 14
	#Set pin 14 as an output and shut down
	GPIO.setup(GATE, GPIO.OUT)
	GPIO.output(GATE, False)

	def getCPUtemperature():
	res = os.popen('vcgencmd measure_temp').readline()
	return(res.replace("temp=","").replace("'C\n",""))

	while True:

	temp_float = float(getCPUtemperature())

	try:
	if (temp_float > TEMP_MAX):
	# ein
	GPIO.output(GATE, True)
	time.sleep(ON_TIME)
	# aus
	GPIO.output(GATE, False)
	else:
	GPIO.output(GATE, False)

	except KeyboardInterrupt:
	print float(getCPUtemperature())
	print "power off fan..."
	GPIO.output(GATE, False)
	print "cancelling..."

Push button (ON/OFF) script problems?

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