@wishmaster270
Now works great on my RasberryPi - thanks

@wishmaster270 Great - thanks

Here is some more info in case it helps:

As well as a pull-down resistor, I also tried a pull up, and tried without any resistor - neither sent notifications.

To double check, I used Python (RPi.GPIO) and received the events from GPIO 17 when the switch was closed.

Rasberry Pi OS was install around Nov 2 2025 using the Rasberry Pi imager

$ uname -a
Linux raspberrypi 6.12.47+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1 (2025-09-16) aarch64 GNU/Linux

Hi all,

I want to have the MMM-GPIO-Notification module send notifications when a Pi GPIO pin goes high.

I have GPIO pin 17 (Pi connector pin 11) with a 10k pull down, resistor and see it go from 0v to 3.255v when the switch is closed.

I followed the setup instructions here https://github.com/Tom-Hirschberger/MMM-GPIO-Notifications (not docker), but npm install fails with the same errors that are discussed here:
https://github.com/ExpeditionExploration/opengpio/issues/37 .

The issue was fixed in opengpio v2.0.1. As an experiment I changed the MMM-GPIO-Notification package.json opengpio dependency from ~1.0.13 to ~2.0.1
npm install now runs without error (it also built with opengpio v2.0.0 which surprised me)

When I close the switch, I don’t see any indication in the server logs or MMM-ViewNotifications that any notifications were sent, but I’m not sure if it’s because I have the Pi/MM set up incorrectly, or because it’s not the right version opengpio :(

I tried both with and without the forceInfoFileUsage option.

Server startup::

[LOG]   Loading config ... 
[LOG]   config template file not exists, no envsubst 
[INFO]  Checking config file MagicMirror/config/config.js ... 
[INFO]  Your configuration file doesn't contain syntax errors :) 
[INFO]  Checking modules structure configuration ... 
[INFO]  Your modules structure configuration doesn't contain errors :) 
[LOG]   Loading module helpers ... 
[LOG]   No helper found for module: alert. 
[LOG]   No helper found for module: clock. 
[LOG]   Initializing new module helper ... 
[LOG]   Module helper loaded: calendar 
[LOG]   No helper found for module: weather. 
[LOG]   No helper found for module: MMM-ViewNotifications. 
[LOG]   Initializing new module helper ... 
[LOG]   Initializing new module helper ... 
[LOG]   Module helper loaded: MMM-GPIO-Notifications 
[LOG]   All module helpers loaded. 
[LOG]   Starting server on port 8080 ...  
[LOG]   Server started ... 
[LOG]   Connecting socket for: calendar 
[LOG]   Starting node helper for: calendar 
[LOG]   Connecting socket for: MMM-GPIO-Notifications 
[LOG]   Sockets connected & modules started ... 
[LOG]   Launching application. 
[INFO]  
####  System Information  ####
SYSTEM:   manufacturer: Raspberry Pi Foundation; model: Raspberry Pi 3 Model B Rev 1.2; virtual: false; MM: 2.33.0
OS:       platform: linux; distro: Debian GNU/Linux; release: 13; arch: arm64; kernel: 6.12.47+rpt-rpi-v8
VERSIONS: electron: 38.1.2; used node: 22.19.0; installed node: 25.1.0; npm: 11.6.2; pm2: 6.0.13
ENV:      XDG_SESSION_TYPE: wayland; MM_CONFIG_FILE: undefined
            WAYLAND_DISPLAY:  wayland-0; DISPLAY: :0; ELECTRON_ENABLE_GPU: undefined
RAM:      total: 906.04 MB; free: 405.40 MB; used: 500.64 MB
OTHERS:   uptime: 225 minutes; 
[LOG]   MMM-GPIO-Notifications: Using naming schema Default 
[LOG]   Force use of GPIO info file is configured. Using the information of gpioinfo.json instead of a specific device!
[LOG]   MMM-GPIO-Notifications: Trying to registering pin: 17 
[LOG]   MMM-GPIO-Notifications: Using chip (0) and line (17) info of GPIO17 
[LOG]   MMM-GPIO-Notifications: Watched pin: 17 has low state delay of 1000! 
[LOG]   MMM-GPIO-Notifications: Watched pin: 17 has high state delay of 1000! 
[LOG]   MMM-GPIO-Notifications: Successfully registered pin: 17

config.js:

{
	module: 'MMM-ViewNotifications',
	position: "top_right",
	header: 'Notifications',
	config: {
		timeout: 20,
		format: '{time}: "{module}" sent "{notification}" with {payloadData}',
		includeModules: ["MMM-GPIO-Notifications"]
	}
},	
{
	module: 'MMM-GPIO-Notifications',
	config: {
		'17': {
			delay: 1000,
			notifications_high: [
				{
					notification: 'TEST_NOTIFICATION',
					payload: {}
				},
			]
		}
	}
},

Is there any kind of extra logging for MMM-GPIO-Notifications or opengpio I can perhaps switch on?

Thanks in advance for any other info or suggestions.

~Queasy…