MMM-RFID

This is a module for MagicMirror² to interact with other modules by RFID-RC522 via python and GPIO.

MFRC522-python is used for python part and wrapped in JavaScript.

Installation

In your terminal, go to your MagicMirror's Module folder:

cd ~/MagicMirror/modules

Clone this repository:

git clone https://github.com/hebestreit/MMM-RFID.git

Using the module

To use this module, add it to the modules array in the config/config.js file:

modules: [
    {
        module: 'MMM-RFID',
        config: {
            events: {
                daniel: [ // data on rfid tag as decimal block will be used as identifier [100, 97, 110, 105, 100, 108, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
                    {
                        CURRENT_PROFILE: "daniel" // i.e. "CURRENT_PROFILE" is used for notification identifier and "daniel" for notification payload
                    }
                ]
            }
        }
    }
]

Configuration options

The following properties can be configured:

Option	Description
events	With this property you can define multiple events / notifications which will be dispatched to other module. For this the data block on rfid tag will be used when has been successfully scanned. Possible values: array Default value: []

Usage with other modules

MMM-ProfileSwitcher by Brian Janssen

Basically I've developed this module to switch different profiles using rfid tags by authenticated user. This can be easily done with MMM-ProfileSwitcher.

Wiring

Please check this documentation to wire your reader.

Writing data

To write data to tag please run following code as sudo and enter your value. On block sector 8 it's saved as decimal values with a length of 16 which will be converted to ascii later. For example [100, 97, 110, 105, 100, 108, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] will be converted to "daniel". You can check it online here.

Please let me know if you've got a smarter idea!

Careful Stop MagicMirror if MMM-RFID module is running before writing or reading tag via python!

sudo python modules/MMM-RFID/MFRC522-python/Write.py

Reading data

After you've write successfully your data to rfid tag you can run following command to check it's value.

sudo python modules/MMM-RFID/MFRC522-python/Read.py