{HowTo} turn on/off your monitor (Time based, PIR/Button, App)

MadScientist

I would like to use the MMM-PIR-sensor module to trigger the relay to power off the LCD. However, whenever I set
relayPIN: 27, in the config.js, the motion detector doesn’t do anything anymore. Anyone know what else I have to change in the config? It’s working just fine without the relay.

Config working without relay (switches off HDMI):

                {
                module: 'MMM-PIR-Sensor',
                config: {
                        sensorPIN: 22, 
                        relayPIN: false,
                        powerSaving: true,
                        }
                },

Not working with relay:

                {
                module: 'MMM-PIR-Sensor',
                config: {
                        sensorPIN: 22,
                        relayPIN: 27,
                        relayOnState: 1,
                        powerSaving: true,
                        }
                },

The problem is I am using a V59 LCD controller board which doesn’t power on again once the HDMI is re-activated.

cruunnerr

Can u turn on GPIO27 with gpio -g write 27 1 and off with gpio -g write 27 0 ?
Have u tried just to connect a LED on GPIO27 ?
What relay do u use and how exactly is it connected? ?

MadScientist

Hmm, I get

Unable to determine hardware version. I see: Hardware   : BCM2835
,
 - expecting BCM2708 or BCM2709. Please report this to projects@drogon.net

when I run gpio -g write 27 1 .

cruunnerr

@MadScientist said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):

Unable to determine hardware version. I see: Hardware : BCM2835

Huh… a quick google search tells, that this could be several causes. Some wrote to update or downgrade the kernel., some wrote to update wiring pi and so on.
So its not a problem of the module at all. I’m sorry but for the first u should try to google.

Maybe start with this: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=182191

However you should start a new thread if you cannot get to target :(

randomnoise

@MadScientist said in {HowTo} turn on/off your monitor (Time based, PIR/Button, App):

Hmm, I get

Unable to determine hardware version. I see: Hardware   : BCM2835
,
 - expecting BCM2708 or BCM2709. Please report this to projects@drogon.net

when I run gpio -g write 27 1 .

I had the same issue. I just followed the instructions on the wiring pi site to install. Don’t have my notes but there was a different version depending if you use wiringpi or wiring-pi. I’ll see if I can find the right one.

randomnoise

So I think as wiring-pi is the npm specific version the reason it didn’t work was because they haven’t compiled it to work with the pi3 chip.

Try http://wiringpi.com/download-and-install/

MadScientist

Thanks so far. I did npm uninstall wiring-pi and installed wiringpi via git. Now I don’t get the error anymore but the relay still does nothing. It’s getting late and won’t have the time today anymore to look into it. Let me know if you have other ideas and I will continue tomorrow.

Thanks so far.

randomnoise

I think I kept the npm wiring-pi on there as well… There’s probably some other stuff in there that makes it work in mm.

cruunnerr

U could also quick try the script from this tutorial (at point 5). It will be done in 2 minutes ^^
Maybe u missed the connection?

MadScientist

Two minutes if you know what you’re doing…
The problem is I don’t have a button. I did create the relay.py script and run it. It triggers the relay exactly once and then stays like this. I can’t even stop the script anymore once it’s running…

Man, I really thought setting up the relay would be as easy as adding one line to the config. Wish I had tried to set it up earlier.

Still need help with this. :-(