First time poster here
For my NPO I would like to build the following gadget:
A card logger, which reads Data from a user ID card (Name, ID Number, Organisation), displays the data on a screen and saves it temporarily. Temporarily meaning, that at the end of a session (after ca. 30min), the data should be read by a smartphone (over NFC or Bluetooth. I would prefer NFC as I already have a NFC connection and need to keep the cost as low as possible). The smartphone should then sync the read data with a database.
I can`t let the Arduino directly communicate with the database, as there is no Wifi connection at the palces where they will be used.
New to Arduino, I thought I would need the following components:
- Battery Pack
- NFC component
- storage unit?
However, I am not sure about the following points:
- Can I let the Aduino and my smartphone communicate over NFC? (sending\receiving commands)
- As the numbers of cards being read per time are only a few, each with 180 byte Data, is an EEPROM enough or do I need an extra storage unit?
Sorry for the noobish questions. I would really appreciate your expertise.