1. Make a rfid reader module which scans rfid card and saves data in sd card with date and time.
2. join with esp module to connect to wifi, when connected sends data to my server
3. wifi data to send in esp from mobile browser
4. should work via portable mobile charger
Note - show data in sd card in mobile when connected via bluetooth or wifi module, when its sending data, keep a bulb blinking, when connected to wifi, show green light, when scanning rfid card show may be blue light.