For testing in terminal :

1- Create a button.py file with this :

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_UP)

tries = 0

while (tries < 200):
    if GPIO.input(25):
        print("Open")
    else:
        print ("Close")
    time.sleep(0.5)
    tries = tries + 1

#GPIO.cleanup()           # clean up GPIO on normal exit

2 - Execute with “python button.py”

3 - Test your button.

Does anyone know how to read the initial value of a button (GPIO) before it is run ?

Thanks.

Hi @Jopyth !

Thanks for your module.

I would like to use an on / off button instead of a push button
for my garage door project (https://forum.magicmirror.builders/topic/1620/garage-door-detectors)

Is there a way to send a notification on “button_up” and an other notification on “Button_down” ?

Thank you very much ;-)

@strawberry-3.141 Thank you !! It’s working :-)

@strawberry-3.141
Thank you for the help !
I understand the principle but not knowing javascript, I have a little trouble with the variables.

This is my (not working) code :

/* global Module */

/* Magic Mirror
 * Module: MMM-door-sensor
 *
 * By iStepgueu http://www.twitter.com/istepgueu
 * MIT Licensed.
 */

Module.register("MMM-door-sensor",{

	// Default module config.
	defaults: {
		text: "Hello World!"
	},


	// Define start sequence.
	start: function() {
		Log.info("Starting module: " + this.name);

	},



	notificationReceived: function(notification, payload, sender) {
		if (sender) {
			Log.log(this.name + " received a module notification: " + notification + " from sender: " + sender.name);
			if (notification === "REMOTE_ACTION") {
				this.sendSocketNotification(notification, payload);	

				var door_state = "close.png";			
	
				this.updateDom();				
			
			}
		} else { 
			if (notification === "DOM_OBJECTS_CREATED") {
				this.sendSocketNotification("REQUEST_DEFAULT_SETTINGS");
			
				var door_state = "open.png";


				this.updateDom();


			}
		}
		
		},


		getDom: function() {

		var wrapper = document.createElement("div");
		return door_state;
		wrapper.innerHTML = '<img src=" + door_state + " />';
		return wrapper;
	}



});

I have create a MMM-door-sensor ‘module’
https://github.com/istepgueu/MMM-door-sensor

The module receive SHOW_ALERT and HIDE_ALERT from MMM-Buttons but I do not know how to show such or such text (Toto/Tata) according to the received notification.

Any help is welcome.
Thank you very much ;)

@morozgrafix Ok I understand the principle. I will try to look at this but I do not have enough skills.

On the way to create a module “MMM-doors-sensor”

Yes !

I have successfuly installed MMM-buttons and connect my first magnetic sensor to pin24

When contact is ON, nothing happen.
When contact is OFF, I have the notification message and the RPI Shutdown.

Now I’m a bit stuck for the rest.
I do not see how to display images in a specific place in the mirror.

Here is the working code :

{
    module: 'MMM-Buttons',
    config: {
        buttons: [

{
                pin: 24,
                name: "power",
                longPress: {
                    title: "Power off",
                    message: "Keep pressed for 3 seconds to shut down",
                    imageFA: "power-off",
                    notification: "REMOTE_ACTION",
                    payload: {action: "SHUTDOWN"}
                },
                shortPress: undefined
            }

        ]
    }
},

I think it’s possible to adapt MMM-Buttons for my project.
https://github.com/Jopyth/MMM-Buttons

I connected my 1 garage sensor to PIN 25 and GND
I connected my 2 garage sensor to PIN 24 and GND
How can i show a png file when sensor 1 (or 2) is “pressed” ?

Thanks a lot ;-)

Hello.

Here is my current “installation”.

My 2 door sensors send 1 or 0 if there is contact.

Depending on the result, LEDs 1 and 2 light up red or green.

What I would like is to replace the leds with a logo on the mirror.
(I have a door on the street side and a door on the garden side which explains the logos)

Here is the code of my Arduino project.

#include   

const int  C_buttonPin = 12; // Door 1 
const int  H_buttonPin = 13; // Door 2

const int ledsPin = 2;
const int nombreLeds = 2;
const int intervalleTemps = 200;
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(nombreLeds, ledsPin);

int C_buttonState = 0;         // Etat actuel Door 1
int H_buttonState = 0;         // Etat actuel Door 2

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  // make the pushbutton's pin an input:
  pinMode(12, INPUT_PULLUP);
  pinMode(13, INPUT_PULLUP);
  pixels.begin();
  pixels.show();
}

// the loop routine runs over and over again forever:
void loop() {

 int sensorValC = digitalRead(12); Serial.println(sensorValC);
 int sensorValH = digitalRead(13); Serial.println(sensorValH);

  
if (sensorValC == 1) 
{
pixels.setPixelColor(0, 255,0,0);  
}
else
{
pixels.setPixelColor(0, 124,252,0);
}

if (sensorValH == 1) 
{
pixels.setPixelColor(1, 255,0,0); 
}
else
{
pixels.setPixelColor(1, 124,252,0); 
}



pixels.show();
delay(intervalleTemps);

}

Ho and sorry for my bad english (i’m from Belgium)