Make an inventory with the app
1. Scan the QR-code on your box and choose 'check'

2. Scan the barcodes of the modules

3. Order the missing and expired modules

Add a new module to the box using the app
1. Scan the QR-code of the box and choose 'restock'

2. Scan the barcode of the new module

3. Add the new module to the box
